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Journal articles on the topic 'Radiographic Template'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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1

Basso, Maria D., Fabiano Jeremias, Rita C. L. Cordeiro, and Lourdes Santos-Pinto. "Digital Radiography for Determination of Primary Tooth Length:In VivoandEx VivoStudies." Scientific World Journal 2015 (2015): 1–5. http://dx.doi.org/10.1155/2015/939045.

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Background.Methods for determining the root canal length of the primary tooth should yield accurate and reproducible results.In vitrostudies show some limitations, which do not allow their findings to be directly transferred to a clinical situation.Aim.To compare the accuracy of radiographic tooth length obtained fromin vivodigital radiograph with that obtained fromex vivodigital radiograph.Method.Direct digital radiographs of 20 upper primary incisors were performed in teeth (2/3 radicular resorption) that were radiographed by an intraoral sensor, according to the long-cone technique. Teeth were extracted, measured, and mounted in a resin block, and then radiographic template was used to standardise the sensor-target distance (30 cm). The apparent tooth length (APTL) was obtained from the computer screen by means of an electronic ruler accompanying the digital radiography software (CDR 2.0), whereas the actual tooth length (ACTL) was obtained by means of a digital calliper following extraction. Data were compared to the ACTL by variance analysis and Pearson’s correlation test.Results.The values for APTL obtained fromin vivoradiography were slightly underestimated, whereas those values obtained fromex vivowere slightly overestimated. No significance was observed(P≤0.48)between APTL and ACTL.Conclusion.The length of primary teeth estimated byin vivoandex vivocomparisons using digital radiography was found to be similar to the actual tooth length.
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2

Carrau, Ricardo L., Carl H. Snyderman, Hugh B. Curtin, and Jane L. Weissman. "Computer-Assisted Frontal Sinusotomy." Otolaryngology–Head and Neck Surgery 111, no. 6 (1994): 727–32. http://dx.doi.org/10.1177/019459989411100605.

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An osteoplastic frontal sinus flap with flat obliteration is the “gold” standard for the management of chronic frontal sinus inflammatory disease caused by obstruction of the nasofrontal duct. Frontal sinusotomy, with an osteoplastic technique, call for osteotomies, guided by a template obtained from a Caldwell radiographic view taken at a distance of 6 feet. The reliability of the template depends on the position of the patient, distance at which the radiograph is taken, penetration of the x-rays, and other technical aspects. Therefore the template is a potential source of error. We present the use of a computer-assisted frontal sinusotomy as a method to corroborate the shape and margins of the frontal sinus in six patients undergoing obilterative frontal sinus surgery. In our hands, this technique has proved more reliable than the radiographic template to corroborate the positioning of the osteotomies.
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3

Sykaras, Nikitas, and Ronald D. Woody. "Conversion of an implant radiographic template into a surgical template." Journal of Prosthodontics 10, no. 2 (2001): 108–12. http://dx.doi.org/10.1111/j.1532-849x.2001.00108.x.

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4

Sykaras, Nikitas, and Ronald D. Woody. "Conversion of an implant radiographic template into a surgical template." Journal of Prosthodontics 10, no. 2 (2001): 108–12. http://dx.doi.org/10.1053/jpro.2001.25161.

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5

Marchack, Christopher B., Allan Charles, and Alex J. Matosian. "A subtractive radiographic template for computer-guided surgery." Journal of Prosthetic Dentistry 112, no. 4 (2014): 1006–8. http://dx.doi.org/10.1016/j.prosdent.2014.05.019.

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6

Solow, Roger A. "Simplified radiographic-surgical template for placement of multiple, parallel implants." Journal of Prosthetic Dentistry 85, no. 1 (2001): 26–29. http://dx.doi.org/10.1067/mpr.2001.112793.

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7

Döler, W., N. Harendt, A. Jäger, and N. Steinhöfel. "Application of Histogram and Template Matching Methods for Radiographic Image Comparison." Zeitschrift für Medizinische Physik 1, no. 3 (1991): 111–18. http://dx.doi.org/10.1016/s0939-3889(15)70844-5.

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8

Carver, Brett S., Bobby Shayegan, Scott Eggener, et al. "Incidence of Metastatic Nonseminomatous Germ Cell Tumor Outside the Boundaries of a Modified Postchemotherapy Retroperitoneal Lymph Node Dissection." Journal of Clinical Oncology 25, no. 28 (2007): 4365–69. http://dx.doi.org/10.1200/jco.2007.11.2078.

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Introduction Modified template retroperitoneal lymph node dissections (RPLND) have become increasing applied in the postchemotherapy (PC) setting. We evaluated our experience with PC-RPLND to determine the incidence of disease extending outside the boundaries of a modified PC-RPLND. Patients and Methods From 1989 through 2003, a total of 532 men underwent PC-RPLND for metastatic nonseminomatous germ cell tumor (NSGCT). Of these, 269 (51%) had either viable germ cell tumor (GCT) or teratoma present in the RPLND specimen. After Institutional Review Board approval, clinical and pathologic data were obtained from our prospective surgical database. The incidence of retroperitoneal disease outside the boundaries of five modified templates was reported for the presence of viable GCT or teratoma. Results Of the 269 patients with viable GCT or teratoma, 20 to 86 (7% to 32%) patients had evidence of extratemplate retroperitoneal disease, depending on the boundaries of the modified template. There was no difference in the histologic distribution for patients with disease confined to or outside of the modified templates. Despite the absence of preoperative radiographic evidence of disease outside the boundaries of the Testicular Tumor Study Group template, the incidence of extratemplate metastasis for men with residual retroperitoneal masses less than 1, 1 to 2, 2 to 5, and more than 5 cm was two of 24 (8%), seven of 38 (18%), 27 of 92 (29%), and 14 of 55 (25%), respectively. Conclusion Our data suggest a bilateral RPLND is a prudent approach for the management of men with metastatic NSGCT after chemotherapy, given that at least 7% to 32% of men will have teratoma or viable GCT outside the boundaries of a modified template.
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9

Elmowafy, Doaa, Mohamed M. Fouad, Nessreen Elmekkawy, and Mohamed Elgamal. "Mandibular bone height changes in two different design concepts of four implant assisted overdenture." International Journal of Scientific Research and Management 9, no. 05 (2021): 354–62. http://dx.doi.org/10.18535/ijsrm/v9i05.mp02.

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Purpose: This comparative study was conducted to compare between two different design concepts of four implant assisted complete mandibular overdenture regarding the residual alveolar bone height changes.Materials and Methods: Ten healthy completely edentulous male patients were selected for this study. For each patient, a conventional complete denture was constructed. Each mandibular denture was duplicated to be used as a radiographic stent, then the CBCT surgical guide template was printed according to each design concept of 4-implant overdenture. The CBCT surgical guide templates were used for installing the implants according to flapless surgical technique followed by delayed loading. According to the two design concepts of the 4-implant overdenture used in this study, the patients were randomly classified into two equal groups: group [A]had two vertical canine implants with two axial 1st molar short implants (short design concept), and group [B]had two vertical canine implants with two distally inclined premolar implants (inclined design concept). Radiographic evaluations were performed immediately (T0), 6 months (T6), and 12 months (T12) respectively after picking up of the ball attachments.
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10

Kopp, Kevin C., Alyson H. Koslow, and Omar S. Abdo. "Predictable implant placement with a diagnostic/surgical template and advanced radiographic imaging." Journal of Prosthetic Dentistry 89, no. 6 (2003): 611–15. http://dx.doi.org/10.1016/s0022-3913(03)00198-7.

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11

Huynh-Ba, Guy, Peggy Alexander, Matthew J. Vierra, Adriana Vargas, and Thomas W. Oates. "Using an existing denture to design a radiographic template for a two-implant mandibular overdenture." Journal of Prosthetic Dentistry 109, no. 1 (2013): 53–56. http://dx.doi.org/10.1016/s0022-3913(13)60012-8.

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12

Malta Barbosa, João, Gonçalo Bártolo Caramês, Graciela Granda Gill, and João Caramês. "Adaptation of an interim partial removable dental prosthesis as a radiographic template for implant placement." Journal of Prosthetic Dentistry 116, no. 1 (2016): 147–48. http://dx.doi.org/10.1016/j.prosdent.2016.01.004.

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13

Bayliss, Y., A. Balogh, P. Burrowes, G. Brunet, and K. Jensen. "A quality review of the occurrence of a non-fatal venous air embolism event following CT contrast enhanced administration for the purpose of radiation therapy planning." Journal of Radiotherapy in Practice 13, no. 1 (2013): 29–34. http://dx.doi.org/10.1017/s1460396912000490.

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AbstractBackgroundThe incidence of venous air embolism (VAE) during and following diagnostic and interventional radiographic procedures utilizing contrast media has been well documented in the literature. However to date a case report of a venous air embolism occurring within an outpatient healthcare facility during a contrast enhanced computer tomography radiation therapy planning procedure remains under reported.PurposeHealthcare professionals must remain alerted to the fact that iatrogenic VAE may occur unexpectedly during and following diagnostic and interventional radiographic procedures utilizing the injection of contrast media. The action by all healthcare professionals to implement rapid and clear acute care guidelines will increase the probability of the patient recovering from the event.Materials and methodsA review of the aetiology and associated pathophysiology of VAE is provided. This is followed by a detailed case report of the occurrence of a non-fatal VAE event (patient consent was obtained and the consent form template was reviewed by a Research Ethics Board).ConclusionWe conclude with a discussion of quality assurance recommendations that should be considered for implementation in an outpatient facility setting that is performing contrast enhanced computer tomography diagnostic, interventional or radiation therapy planning radiographic procedures.
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14

Kumar, Shiv, Mandeep Kaur, Bhavika Sachdeva, and Iqbal Kaur. "An Easy Approach for the Fabrication of Surgical Template for Placement of Mini-implant." Journal of Advanced Oral Research 10, no. 2 (2019): 170–73. http://dx.doi.org/10.1177/2320206819858454.

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The success of dental implant depends on meticulous treatment planning. Restorative problems are often common with improper placement of implants, especially where the alveolar bone quantity is compromised. The accuracy needed in placement of the mini-implant is even more. Hence, the use of a surgical guide becomes essential. Various authors have suggested techniques for the fabrication of surgical and radiographic stents. These techniques make use of different materials in fabrication of stent. This article presents a simple technique for the fabrication of a surgical guide for the placement of mini-implants using simple readily available materials. The technique can be modified to be used for regular diameter implants.
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15

Pontual, Marco A. B., JoséN O. Freire, Dircilene C. Souza, Cimara F. Ferreira, Marco A. Bianchini, and Ricardo S. Magini. "A Newly Designed Template Device for Use With the Insertion of Immediately Loaded Implants." Journal of Oral Implantology 30, no. 5 (2004): 325–29. http://dx.doi.org/10.1563/0711.1.

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Abstract This article describes a newly designed surgical template that was used to facilitate dental implant placement. The implants were planned to function by loading them immediately. A case report describing the device and the benefits of its use for a patient with an edentulous mandible is presented. Four implants were placed in the anterior region of the mandible to support an immediately fixed prosthesis. Clinical and radiographic analyses were conducted postoperatively to evaluate bone loss and peri-implant soft-tissue healing. The salutary results demonstrated the positive value of this therapeutic approach and presented the advantages of shorter treatment times, fewer patient visits, lower costs, and elimination of secondary surgical procedures.
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16

Amet, Edward M., and Scott D. Ganz. "IMPLANT TREATMENT PLANNING USING A PATIENT ACCEPTANCE PROSTHESIS, RADIOGRAPHIC RECORD BASE, AND SURGICAL TEMPLATE. PART 1." Implant Dentistry 6, no. 3 (1997): 193–202. http://dx.doi.org/10.1097/00008505-199700630-00005.

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17

Amet, E. M., and S. D. Ganz. "Implant treatment planning using a patient acceptance prosthesis, radiographic record base, and surgical template. Part 1." Implant Dentistry 6, no. 3 (1997): 232. http://dx.doi.org/10.1097/00008505-199700630-00017.

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18

Ganesh, N. Praveen, Pushan Maity, D. Alagar Raja, R. V. M. Surya Rao, S. Narayanamurthy, and A. Prasath. "Triangulating the ledge: radiographic study of the floor of orbit and derivation of a novel template." British Journal of Oral and Maxillofacial Surgery 58, no. 9 (2020): e104-e108. http://dx.doi.org/10.1016/j.bjoms.2020.07.016.

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19

H. Mostafa, Marwah, Wessam M. Dehis, and Hisham S. ElGabry. "RADIOGRAPHIC EVALUATION OF TELESCOPIC PIER ABUTMENTS IN MANDIBULAR DISTAL EXTENSION CASES." International Journal of Advanced Research 8, no. 10 (2020): 1177–78. http://dx.doi.org/10.21474/ijar01/11950.

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Purpose: The aim of this clinical study is to compare the effect of both definitive partial dentures and telescopic partial dentures on bone height changes around the terminal abutments in mandibular distal extension cases with pier abutment. Materials and Methods: Fourteen mandibular Kennedys Class I classification with pier abutment patients were divided into two equal groups. First group (I) received definitive metal-frame removable partial dentures (RPD), while the second group (II) received telescopic RPD. The supporting bone height around the terminal abutments was radiographically evaluated. Next to baseline recording following denture insertion, bone height measurements were obtained at regular recall follow-up appointments of 6, 12, 18 and 24 months. Radiographic evaluation was carried outusing the Digora system and customized acrylic template constructed for each patient individually. The linear measurement system supplied by the Digora machine software was utilized for recording bone height changes mesial and distal to the main terminal abutments. Results: Comparison was performed between definitive and telescopic groups utilizing independent t-test and resulted in differencesof no significant for all follow-up recalls (P value > 0.05). Conclusion:Definitive RPD and telescopic RPD appeared to besuccessful both clinically and biologically. However, Telescopic RPD proved to be superior to the definitive one regarding bone height measurements.
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20

Chung, Eunjung, R. W. Toothaker, and Anthony Randi. "Adaptation of a Fox plane analyzer for the orientation of a radiographic computerized tomography scan implant template." Journal of Prosthetic Dentistry 78, no. 6 (1997): 616–17. http://dx.doi.org/10.1016/s0022-3913(97)70015-5.

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21

Spyropoulou, Panagiota-Eirini, Michael Razzoog, and Marianella Sierraalta. "A technique for indirect fabrication of a complete-arch, implant-supported, fixed provisional restoration from a radiographic template." Journal of Prosthetic Dentistry 104, no. 3 (2010): 199–203. http://dx.doi.org/10.1016/s0022-3913(10)60122-9.

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22

Weber, G. M., S. P. M. Dries, and A. Gooßen. "Automatic Joint Alignment Measurements in Pre- and Post-operative Long Leg Standing Radiographs." Methods of Information in Medicine 51, no. 05 (2012): 406–14. http://dx.doi.org/10.3414/me11-02-0033.

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SummaryObjectives: For diagnosis or treatment assessment of knee joint osteoarthritis it is required to measure bone morphometry from radiographic images. We propose a method for automatic measurement of joint alignment from pre-operative as well as post-operative radiographs.Methods: In a two step approach we first detect and segment any implants or other artificial objects within the image. We exploit physical characteristics and avoid prior shape information to cope with the vast amount of implant types. Subsequently, we exploit the implant delineations to adapt the initialization and adaptation phase of a dedicated bone segmentation scheme using deformable template models. Implant and bone contours are fused to derive the final joint segmentation and thus the alignment measurements.Results: We evaluated our method on clinical long leg radiographs and compared both the initialization rate, corresponding to the number of images successfully processed by the proposed algorithm, and the accuracy of the alignment measurement. Ground truth has been generated by an experienced orthopedic surgeon. For comparison a second reader reevaluated the measurements. Experiments on two sets of 70 and 120 digital radiographs show that 92% of the joints could be processed automatically and the derived measurements of the automatic method are comparable to a human reader for pre-operative as well as post-operative images with a typical error of 0.7° and correlations of r = 0.82 to r = 0.99 with the ground truth.Conclusions: The proposed method allows deriving objective measures of joint alignment from clinical radiographs. Its accuracy and precision are on par with a human reader for all evaluated measurements.
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Korsnes, Lars, Andreas Gottvall, Christian Buttazzoni, and Michael Mints. "Undersizing the Exeter stem in hip hemiarthroplasty increases the risk of periprosthetic fracture." HIP International 30, no. 4 (2019): 469–73. http://dx.doi.org/10.1177/1120700019855313.

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Introduction: Whether under- or oversizing of the femoral component of cemented hip hemiarthroplasties impacts the risk of periprosthetic fractures (PPF) has only been examined experimentally. This study was carried out to add more knowledge about the risks of PPF in cemented polished tapered hemiarthroplasties. Methods: 20 patients with PPF following hip hemiarthroplasty with cemented Exeter V40 stems were compared to 50 controls who never suffered PPF having received the same type of Exeter hemiprosthesis for the same indication. The difference between stem size and post-hoc radiographic ideal templated size was investigated as a predictor of PPF. Results: Cases had a median size difference to post-hoc templating of –2, while controls had a median size difference of –1 ( p = 0.09). An ROC curve constructed to find an optimal cutoff point in size difference between cases and controls arrived at an area under curve of 63%, with –1.5 as the cutoff. Patients with size differences exceeding –1.5 had a statistically significant increased PPF risk (odds ratio = 3.8, 95% confidence interval, 1.1–13.3, p < 0.05). This group covered 55% of all cases. Conclusion: An implanted femoral component that is 2 or more sizes smaller than the template that is shown to be appropriate will increase the risk of PPF in Exeter hip hemiarthroplasties.
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Tavennec, Louise, Pierre-Alexandre Chataigner, Olivier Sorel, and Victor Fau. "Transplant surgical templates for dental autotransplantation: a technical note." Journal of Oral Medicine and Oral Surgery 25, no. 3 (2019): 25. http://dx.doi.org/10.1051/mbcb/2019010.

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Introduction: This technical note presents the autotransplantation of an impacted third molar to replace a severely damaged homolateral molar using a surgical template of the tooth to be transplanted to prepare the recipient site based on an original protocol. Technique: Mandibular molar extraction is first performed, and autotransplantation is done after 7 days. Alveolar adjustment of the receiving socket is done using a resin replica of the tooth to be transplanted; the replica is obtained using DICOM diagnosis data. The three-dimensional (3D) replica is produced using 3D printing techniques with photopolymerizable methacrylate resin. Once the recipient site is ready, the transplant is avulsed. Immediate positioning of the tooth in the new socket will save a tremendous amount of extra-alveolar time. Cross-stitch sutures are done to obtain complete restraint, and endodontic treatment is administered after 15 days. Postoperative clinical and radiographic examination showed periodontal healing after postoperative 6 months. Comments: The use of the surgical template resulted in an extra-alveolar time of below 5 s and preservation of healthy periodontal ligament cells of the donor tooth as much as possible. Conclusion: The 3D technology, from imaging to printing, can drive the improvement of prognosis in a tooth autotransplantation protocol.
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Ahmed, Omneya, Naglaa El Kilani, Samir Ibrahim, Ahmed Salama, and Ghada Khalifa. "Clinical and Radiographic Evaluation of Piezocision Corticotomy with Bone Graft Guided By 3D-Surgical Template in Maxillary Protrusion (comparative study)." Al-Azhar Dental Journal for Girls 7, no. 1 (2020): 447–51. http://dx.doi.org/10.21608/adjg.2020.18874.1201.

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Di Giacomo, Giovanni, Jorge Silva, Rodrigo Martines, and Sergio Ajzen. "Computer-designed selective laser sintering surgical guide and immediate loading dental implants with definitive prosthesis in edentulous patient: A preliminary method." European Journal of Dentistry 08, no. 01 (2014): 100–106. http://dx.doi.org/10.4103/1305-7456.126257.

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ABSTRACT Objective: The aim of this study was to analyze a preliminary method of immediately loading dental implants and a definitive prosthesis based on the computer-aided design/computer-aided manufacturing systems, after 2 years of clinical follow-up. Materials and Methods: The study comprised one patient in good general health with edentulous maxilla. Cone beam computer tomography (CBCT) was performed using a radiographic template. The surgical plan was made using the digital imaging and communications in medicine protocol with ImplantViewer (version 1.9, Anne Solutions, Sao Paulo, SP, Brazil), the surgical planning software. These data were used to produce a selective laser sintering surgical template. A maxilla prototype was used to guide the prosthesis technician in producing the prosthesis. Eight dental implants and a definitive prosthesis were installed on the same day. A post-operative CBCT image was fused with the image of the surgical planning to calculate the deviation between the planned and the placed implants positions. Patient was followed for 2 years. Results: On average, the match between the planned and placed angular deviation was within 6.0 ± 3.4° and the difference in coronal deviation was 0.7 ± 0.3 mm. At the end of the follow-up, neither the implant nor the prosthesis was lost. Conclusions: Considering the limited samples number, it was possible to install the dental implants and a definitive prosthesis on the same day with success.
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Lanis, Alejandro, Miguel Padial-Molina, Rami Gamil, and Orlando Alvarez del Canto. "Computer-guided implant surgery and immediate loading with a modifiable radiographic template in a patient with partial edentulism: A clinical report." Journal of Prosthetic Dentistry 114, no. 3 (2015): 328–34. http://dx.doi.org/10.1016/j.prosdent.2015.03.012.

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28

Girard, Nicolas, Edouard R. J. Cauvin, Olivier Gauthier, and Simon Gault. "Biphasic Calcium Phosphate Microparticles Mixed With Autologous Blood: Application for the Reconstruction of a Large Mandibular Bone Defect in a Dog." Journal of Veterinary Dentistry 37, no. 4 (2020): 201–9. http://dx.doi.org/10.1177/0898756421990909.

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Large mandibular bone defects can be difficult to treat in dogs, with a high risk of mal or nonunion due to instability and risk of infection. This case report describes the use of autologous clotted blood mixed with biphasic calcium phosphate microparticles to fill a defect in a nonunion fracture and promote bone regeneration in a dog using a 2-stage surgical approach. This new method was designed and tried in a dog with a chronic, unstable mandibular fracture associated with a large sequestrum. Initial treatment involved debridement of the lesion, then the oral wound and oral vestibule were reconstructed in 2 layers. Four weeks later a second stage surgery allowed placement of a pre-contoured maxillofacial plate to bridge the defect, which was filled with a blood/biphasic calcium phosphate compound implant. Cone-beam computed tomography was used prior to the initial surgery for preoperative planning and 3-D printing of a mandibular template for plate contouring. CT was subsequently used to document the healing process, using a bone density measurement tool to assess bone regeneration. Radiographic evidence suggestive of osseointegration was observed within 6 months with effective filling of the defect and restoration of alveolar ridge continuity. A return to normal and atraumatic occlusion was considered excellent. Cone-beam computed tomography was found useful to document radiographic evidence of osseointegration, bone regrowth and remodeling. This case report is to serve as a proof-of-concept study and should be followed by a prospective evaluation.
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Davies, H., J. Foote, and R. F. Spencer. "Accuracy of Femoral Templating in Reproducing Anatomical Femoral Offset in Total Hip Replacement." HIP International 17, no. 3 (2007): 155–59. http://dx.doi.org/10.1177/112070000701700306.

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Restoration of hip biomechanics is a crucial component of successful total hip replacement. Preoperative templating is recommended to ensure that the size and orientation of implants is optimised. We studied how closely natural femoral offset could be reproduced using the manufacturers' templates for 10 femoral stems in common use in the UK. A series of 23 consecutive preoperative radiographs from patients who had undergone unilateral total hip replacement for unilateral osteoarthritis of the hip was employed. The change in offset between the templated position of the best-fitting template and the anatomical centre of the hip was measured. The templates were then ranked according to their ability to reproduce the normal anatomical offset. The most accurate was the CPS-Plus (Root Mean Square Error 2.0 mm) followed in rank order by: C stem (2.16), CPT (2.40), Exeter (3.23), Stanmore (3.28), Charnley (3.65), Corail (3.72), ABG II (4.30), Furlong HAC (5.08) and Furlong modular (7.14). A similar pattern of results was achieved when the standard error of variability of offset was analysed. We observed a wide variation in the ability of the femoral prosthesis templates to reproduce normal femoral offset. This variation was independent of the seniority of the observer. The templates of modern polished tapered stems with high modularity were best able to reproduce femoral offset. The current move towards digitisation of X-rays may offer manufacturers an opportunity to improve template designs in certain instances, and to develop appropriate computer software.
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Ozan, Oguz, Emre Seker, Sevcan Kurtulmus-Yilmaz, and Ahmet Ersan Ersoy. "Clinical Application of Stereolithographic Surgical Guide With a Handpiece Guidance Apparatus: A Case Report." Journal of Oral Implantology 38, no. 5 (2012): 603–9. http://dx.doi.org/10.1563/aaid-joi-d-11-00010.

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The success of implant-supported restorations depends on the treatment planning and the transfer of planning through the surgical field. Recently, new computer-aided design and manufacturing (CAD/CAM) techniques, such as stereolithographic (SLA) rapid prototyping, have been developed to fabricate surgical guides to improve the precision of implant placement. The objective of the present case is to introduce a recently developed SLA surgical guide system into the rehabilitation of a 62-year-old male patient with mandibular edentulism. After obtaining a cone-beam computerized tomography (CBCT) scan of the mandible with a radiographic template, the images were transferred into a 3-dimensional (3D) image-based software for implant planning. The StentCad Beyond SLA surgical guide system, which is a combination of a currently used surgical template with pilot hollows and a surgical handpiece guidance apparatus, was designed to transfer a preoperatively defined implant position onto the surgical site without any drill-surgical guide contact. For the fabrication of this system, a surgical handpiece was scanned by a laser optical scanner and a mucosa-supported surgical guide was designed according to the patient's 3D model, which was attained from the CBCT images. Four dental implants were inserted through the SLA surgical guide system by a torque-controlled surgical handpiece to the interforaminal region via a flapless surgical procedure. Implants were assessed 3 months after surgery, and an implant-retained mandibular overdenture was fabricated. The present case emphasizes that CAD/CAM SLA surgical guides, along with CBCT images and scanning data, may help clinicians plan and place dental implants.
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Nikzad, Sakineh, and Abbas Azari. "Custom-Made Radiographic Template, Computed Tomography, and Computer-Assisted Flapless Surgery for Treatment Planning in Partial Edentulous Patients: A Prospective 12-Month Study." Journal of Oral and Maxillofacial Surgery 68, no. 6 (2010): 1353–59. http://dx.doi.org/10.1016/j.joms.2009.04.108.

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Pereira, Eliana de Souza Bastos Mazuqueli, Fernando Accetturi, Rachel Gomes Eleutério, Daniela Vieira Buchaim, Rogério Leone Buchaim, and Juliana Trindade Clemente-Napimoga. "Reverse Cast Metallic Core Based on the Original Prosthetic Crown." Case Reports in Dentistry 2019 (June 23, 2019): 1–5. http://dx.doi.org/10.1155/2019/6936573.

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The dental crown can be restored using the root in clinical situations where the dental remnant allows adequate anchorage by the use of an intraradicular retainer. After endodontic treatment, reconstruction of the dental anatomy depends on correct planning and the type of restoration to be used. This requires reestablishment of form and function with creation of anchoring features, avoiding detachment and favoring the distribution of forces, thus preventing fracture of the remnant due to functional and parafunctional forces applied on the tooth. This paper reports the clinical case of a patient who sought dental care for a full metal-ceramic crown with a cast metallic core with reduced length that had been detached from tooth 24. After clinical and radiographic examination, root integrity was verified. The patient was offered reconstruction with a cast metallic core of satisfactory length, providing adequate retention and support, with reutilization of the original prosthetic crown, serving as a reverse template of the coronal portion of this new core, providing reduction in costs and operational time.
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Yanagisawa, Sho, Takehiko Takagi, Tsuyoshi Murase, Yuka Kobayashi, and Masahiko Watanabe. "Open Wedge Osteotomy with Ulnar Shortening for Madelung Deformity Using a Computer-Generated Template." Journal of Hand Surgery (Asian-Pacific Volume) 22, no. 04 (2017): 538–43. http://dx.doi.org/10.1142/s021881041772042x.

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A variety of osteotomies have been reported to correct Madelung deformity using plain radiographs. However, evaluation of the deformity using 2-dimensional plain radiography is difficult because of its complex 3-dimensional nature. Therefore, we performed corrective osteotomy using recently developed 3D simulation technology on an adult woman with Madelung deformity, and achieved an excellent outcome. In this study, we calculated the amount of parallel displacement as well as the rotational angle for more precise correction, and performed open wedge osteotomy. Furthermore, we performed concurrent ulnar shortening. An exaggerated radial inclination was observed in the posteroanterior radiograph. A palmar shift of the carpus and dorsal dislocation of the ulnar head were observed in the lateral radiograph. In the preoperative findings, radial inclination (RI), volar tilt (VT), and ulnar variance (UV) were 35°, 40°, and 12 mm, respectively. The wrist showed improvement, with an RI of 25°, VT of 14°, and UV of 0 mm. At present, 14 months after surgery, there has been no loss of correction, instability of the ulnar head, or pain on the ulnar side. The procedure resulted in improvements in the protrusion and pain in the ulnar portion of the patient’s wrist. Based on this result, we believe that accurate corrective osteotomy with ulnar shortening should be performed for Madelung deformity.
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Proks, Pavel, Ladislav Stehlík, Katarina Irová, et al. "Digital Radiographic Analysis of Optical Density of the Distal Segment of the Trochlear Notch of the Ulna in Labrador Retrievers with Fragmented Coronoid Process." Acta Veterinaria Brno 79, no. 2 (2010): 299–306. http://dx.doi.org/10.2754/avb201079020299.

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The aim of the study was to find whether there is a difference in the optical density of the subtrochlear region of incisura trochlearis and in the region of processus coronoideus medialis ulnae in elbow joints with fragmented processus coronoideus and in healthy elbow joints of the Labrador retriever breed. We evaluated digital radiographs of elbows (n = 26) with arthroscopically or arthrotomically proven FCP and digital radiographs of healthy elbows (n = 28). A template was made on radiographs in the JiveX program (Visus Technology Transfer) demarcating individual regions of interest (ROI) in which median optical density was measured. For normalisation of median optical density data of individual ROI, median optical density of the caudal ulnar cortex was used. Elbow joints with fragmented processus coronoideus had a lower mean median optical density in the distal part of incisura trochlearis compared to healthy elbow joints. The lowest median optical densities were found in the region of processus coronoideus medialis and in the distal part of the trochlear notch of the ulna in the region of processus coronoideus lateralis. The biggest difference in median optical densities between elbows with FCP and healthy elbows was found in regions distant from the articular surface. In evaluation of the opacity of the trochlear notch of the ulna it is appropriate to assess the whole region of the proximal ulnar metaphysis from the articular surface to the caudal ulnar cortex.
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Bruno, Vincenzo, Mauro Badino, Roberto Sacco, and Santo Catapano. "The use of a prosthetic template to maintain the papilla in the esthetic zone for immediate implant placement by means of a radiographic procedure." Journal of Prosthetic Dentistry 108, no. 6 (2012): 394–97. http://dx.doi.org/10.1016/s0022-3913(12)60199-1.

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Schnitman, Paul A., Chie Hayashi, and Rita K. Han. "Why Guided When Freehand Is Easier, Quicker, and Less Costly?" Journal of Oral Implantology 40, no. 6 (2014): 670–78. http://dx.doi.org/10.1563/aaid-joi-d-14-00231.

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Computer-assisted implant planning and subsequent production of a surgical template based on this plan has gained attention because it provides restoratively driven esthetics, patient comfort, satisfaction, and the option of flapless surgery and immediate restoration. However, it adds expense and requires more time. Another significant but not so apparent advantage may be improved survival and success over freehand techniques in types III and IV bone. This retrospective analysis was undertaken to examine that possibility. It reports 1-year outcome for 80 implants in 27 consecutively presenting patients treated over a 7-year period using computer-assisted techniques across all bone qualities in commonly encountered treatment indications in private practice. Implants were placed to support single teeth, small bridges, and complete arch restorations in exposed or immediately restored applications, based on primary stability as determined by insertion torque, resonance frequency analysis, and Periotest. For the 80 implants supporting 35 restorations, the median observation period is 2.66 years; 73 implants supporting prostheses in 22 patients had readable radiographs at 1 year. There was a 1-year overall implant survival and a success rate of 100%. Radiographic analysis demonstrated the change in bone level from the platform at 1-year is less than 2 mm. Intra-operative median measurements of primary stability were insertion torque, 40 Ncm; resonance frequency, 76 ISQ; and Periotest, −3. All intra-operative measurements were consistent for acceptable primary stability regardless of bone density. Restoratively driven diagnosis and precision planning and initial fit were possible with computer-assisted techniques resulting in the achievement of high primary stability, even in areas of less dense bone. The ability to plan implant position, drill sequence, and implant design on the basis of predetermined bone density gives the practitioner enhanced pretreatment information which can lead to improved outcome.
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Daas, M., A. Assaf, K. Dada, and J. Makzoumé. "Computer-Guided Implant Surgery in Fresh Extraction Sockets and Immediate Loading of a Full Arch Restoration: A 2-Year Follow-Up Study of 14 Consecutively Treated Patients." International Journal of Dentistry 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/824127.

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Statement of Problem. Low scientific evidence is identified in the literature for combining implant placement in fresh extraction sockets with immediate function. Moreover, the few studies available on immediate implants in postextraction sites supporting immediate full-arch rehabilitation clearly lack comprehensive protocols.Purpose. The purpose of this study is to report outcomes of a comprehensive protocol using CAD-CAM technology for surgical planning and fabrication of a surgical template and to demonstrate that immediate function can be easily performed with immediate implants in postextraction sites supporting full-arch rehabilitation.Material and Methods. 14 subjects were consecutively rehabilitated (13 maxillae and 1 mandible) with 99 implants supporting full-arch fixed prostheses followed between 6 and 24 months (mean of 16 months). Outcome measures were prosthesis and implant success, biologic and prosthetic complications, pain, oedema evaluation, and radiographic marginal bone levels at surgery and then at 6, 12, 18, and 24 months. Data were analyzed with descriptive statistics.Results. The overall cumulative implant survival rate at mean follow-up time of 16 months was 97.97%. The average marginal bone loss was 0,9 mm.Conclusions. Within the limitations of this study, the results validate this treatment modality for full-arch rehabilitations with predictable outcomes and high survival rate after 2 years.
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Han, Yen-Ting, Wei-Chun Lin, Fang-Yu Fan, Chih-Long Chen, Chia-Cheng Lin, and Hsin-Chung Cheng. "Comparison of Dental Surface Image Registration and Fiducial Marker Registration: An In Vivo Accuracy Study of Static Computer-Assisted Implant Surgery." Journal of Clinical Medicine 10, no. 18 (2021): 4183. http://dx.doi.org/10.3390/jcm10184183.

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This study compared the accuracy of static computer-assisted implant surgery (sCAIS) planned through dental surface image registration and fiducial marker registration. Stone models of 30 patients were converted into digital dental casts by using a desktop scanner. Cone-beam computed tomography (CBCT) was performed and superimposed to the digital dental casts with two methods: matching the dental surface images or matching the fiducial markers on a stereolithographic radiographic template. Following the implant planning, stereolithographic surgical guides were fabricated, and 56 fully guided implants were inserted by the same doctor. Deviations between planned and inserted implants were measured and compared using postoperative CBCT images. After adjustment for other potential influencing factors, compared with the fiducial marker registration group, significantly larger mean lateral deviations were noted in the dental surface registration group at both the implant platform and apex (p = 0.0188 and 0.0371, respectively). However, the mean lateral deviations for the dental surface registration (0.83 ± 0.51 mm at implant platform and 1.24 ± 0.68 mm at implant apex) were comparable to the literature. In conclusion, our findings indicate that although sCAIS planned using dental surface image registration was not statistically as accurate as that using fiducial marker registration, its accuracy was satisfactory for clinical use.
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Lin, Chia-Cheng, Ching-Zong Wu, Mao-Suan Huang, Chiung-Fang Huang, Hsin-Chung Cheng, and Dayen Peter Wang. "Fully Digital Workflow for Planning Static Guided Implant Surgery: A Prospective Accuracy Study." Journal of Clinical Medicine 9, no. 4 (2020): 980. http://dx.doi.org/10.3390/jcm9040980.

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The accuracy of static guided implant surgery (sGIS) using conventional planning workflow has been extensively examined; however, more information is required to justify the application of fully digital planning protocol. The purpose of this study was to investigate the clinical accuracy of sGIS with a fully digital planning workflow. Twenty-one partially edentulous patients were enrolled in this prospective study. Cone-beam computed tomography (CBCT) and intraoral scans were taken and superimposed by matching the dental surface images directly (surface registration protocol) or by matching fiducial markers on a stereolithographic (SLA) radiographic template fabricated from the digital data of the intraoral scan (fiducial marker registration protocol). Virtual implant treatment plans were then determined, and tooth-supported SLA surgical guides were fabricated according to the plans. Twenty-six implant surgeries were performed via the surgical guide by one surgeon. Pre- and post-operative CBCT images were superimposed, and the positional and angular deviations between placed and planned implants were measured with metrology software. A total of 43 fully guided implants were placed, in which 25 implants were planned with the surface registration protocol. Implants planned based on the surface registration protocol had a larger mean angular deviation than the fiducial marker registration protocol. No significant differences were found for any deviations of the examined variables. Within the limits of this study, we concluded that the clinical accuracy of the sGIS planned with a fully digital workflow was consistent with the conventional workflow for partially edentulous patients.
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Ren, Ning-ning, An-ran Ma, Li-bo Han, Yong Sun, Yan Shao, and Jian-feng Qiu. "Automatic Radiographic Position Recognition from Image Frequency and Intensity." Journal of Healthcare Engineering 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/2727686.

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Purpose. With the development of digital X-ray imaging and processing methods, the categorization and analysis of massive digital radiographic images need to be automatically finished. What is crucial in this processing is the automatic retrieval and recognition of radiographic position. To address these concerns, we developed an automatic method to identify a patient’s position and body region using only frequency curve classification and gray matching. Methods. Our new method is combined with frequency analysis and gray image matching. The radiographic position was determined from frequency similarity and amplitude classification. The body region recognition was performed by image matching in the whole-body phantom image with prior knowledge of templates. The whole-body phantom image was stitched by radiological images of different parts. Results. The proposed method can automatically retrieve and recognize the radiographic position and body region using frequency and intensity information. It replaces 2D image retrieval with 1D frequency curve classification, with higher speed and accuracy up to 93.78%. Conclusion. The proposed method is able to outperform the digital X-ray image’s position recognition with a limited time cost and a simple algorithm. The frequency information of radiography can make image classification quicker and more accurate.
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Newman, Michael, Grant Shaw, and Timothy Kane. "Assessment of an Orthopaedic Templating Software Package for Cemented Total Hip Arthroplasty." Journal of Hip Surgery 03, no. 02 (2019): 059–61. http://dx.doi.org/10.1055/s-0039-1678746.

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AbstractThe main aim of this article was to assess a large, multisurgeon dataset of cemented total hip arthroplasties that had been templated using software. This assessment compared preoperative templated predictions with what was implanted with regard to (1) femoral prosthesis size, (2) offset, and (3) acetabular cup size. A database of total hip arthroplasties performed by four surgeons between the dates November 7, 2014 and October 31, 2017 was interrogated. The data was refined so that only primary cemented collarless polished tapered stem hip arthroplasties, fully templated on a correctly calibrated pelvic radiograph, were included. This provided 354 cases. The predicted software template was compared with actual implanted component sizes. With regard to the femoral stem, the software was exactly correct in 70.9% and accurate to within one size in 96.89% of cases. With regard to the femoral offset, the software was exactly correct in 87.01% and accurate to within one size in 99.72% of cases. With regard to the acetabular cup size, the software was exactly correct in 61.3% and accurate to within +/− 2 mm in 87.29% of cases. Templating software offers an accurate prediction of the femoral prosthesis size and offset, as well as acetabular cup size. Preoperative insight into likely component sizes and offset provides the operating surgeon with many benefits; templating the pelvic radiograph is a method of cognitive rehearsal, provides insight into potentially challenging aspects of the upcoming surgery, may highlight intraoperative issues where there is a large intraoperative deviation from what is templated, and enables efficient stock keeping for the healthcare institution.
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42

Berberi, Antoine N., Ziad N. Noujeim, Wasfi H. Kanj, Rita J. Mearawi, and Ziad A. Salameh. "Immediate Placement and Loading of Maxillary Single- Tooth Implants: A 3-Year Prospective Study of Marginal Bone Level." Journal of Contemporary Dental Practice 15, no. 2 (2014): 202–8. http://dx.doi.org/10.5005/jp-journals-10024-1515.

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ABSTRACT Aim The purpose of this study was to evaluate marginal bone level around single-tooth implants placed in anterior maxilla and immediately restored. Materials and Methods Twenty implants were placed in 20 patients (8 men and 12 women) that were selected for this study. Following atraumatic non-surgical extraction of tooth, all patients immediately received implants and the definitive prefabricated abutment was placed. Implant position was transferred to the scanning unit of the CAD/CAM system using prefabricated surgical guide. Temporary crowns were immediately fabricated and cemented. Eight weeks later final crowns were luted. Outcome assessment as implant survival and level of marginal bone radiographic evaluations were performed at 8 weeks, 1 and 3 years time period after loading. Results All implants placed osseointegrated successfully after 3 years of functional loading. The mean marginal bone loss was 0.16 mm (SD, 0.167 mm), 0.275 mm (SD, 0.171 mm) and 0.265 mm (SD, 0.171 mm) at 8 weeks, 1 and 3 years time period respectively. Four out of the 20 implants showed no bone loss. Conclusion Immediate loading technique using the final abutment directly eliminated the need for a second stage surgery and prevented interruption of soft and hard tissue at implant neck, which resulted in better soft tissue response and reduced marginal bone loss. Clinical significance Immediately loaded implants, in fresh extraction sockets by insertion of a provisional restoration on the titanium abutment without any later manipulation, helped to protect the initially forming blood clot and presented a template for soft tissue contouring that resulted in significant reduction of marginal bone resorption and maintenance of soft tissue architecture. How to cite this article Berberi AN, Noujeim ZN, Kanj WH, Mearawi RJ, Salameh ZA. Immediate Placement and Loading of Maxillary Single-Tooth Implants: A 3-Year Prospective Study of Marginal Bone Level. J Contemp Dent Pract 2014;15(2): 202-208.
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43

Nichols, Craig R. "Building clinical volumes, research capacity, and quality care in testicular cancer." Journal of Clinical Oncology 31, no. 31_suppl (2013): 198. http://dx.doi.org/10.1200/jco.2013.31.31_suppl.198.

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198 Background: Developing consistent, evidence-based, personalized and cost appropriate management of germ cell tumors is challenging for two reasons: these are uncommon diseases and successful management requires nuanced input from many disciplines with specialized interest in germ cell tumors. We speculated model combining a working tumor board and a true multidisciplinary clinic would improve volumes, research contributions, consistency and personalized care for patients with germ cell tumors. Methods: Beginning in March 2011, we developed a multidisciplinary clinic model, flow and communications with the following principles in mind. 1.) embed electronic capacity to capture clinical and biological datasets to serve as a template for research collaborations with national and international colleagues, 2.) coordinate clinical operations around a mandate for expert pathological and radiographic review, 3.) develop and apply evidence-based clinical guidelines, 4.) build an “open-source” operation and accept cases for electronic review and deliberation from patients and providers who desired expert oversight from an experienced team. Results: Our current clinical volumes have grown to an average of two new cases/week along with 1-2 outside reviews. Ongoing follow-up patients average 10/week. RPLND volumes have increased markedly to more than 20/year. All cases undergo pathology and radiology review. Adherence to published guidelines is superb with few deviations. Imaging schedules have been scaled down to approximately one third of previous radiation exposure. Research contributions have increased with the development of international collaborations, publications and new investigator-initiated studies. Conclusions: Our results demonstrate that purposeful coordination and consolidation of expertise and interests can result in the development of regional and national resources for management of rare malignancies such as testicular cancer. These high functioning clinics result in cost-effective, evidence-based management and high patient satisfaction.
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Pullinger, A. G., F. Baldioceda, and C. A. Bibb. "Relationship of TMJ Articular Soft Tissue to Underlying Bone in Young Adult Condyles." Journal of Dental Research 69, no. 8 (1990): 1512–18. http://dx.doi.org/10.1177/00220345900690081301.

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This investigation used a histological model to study the relationship of articular soft-tissue thickness and contour to the underlying bone in the TMJ condyle of young adults. The usefulness of selected dental and demographic factors in the prediction of the articular soft-tissue thickness and contour was also tested. One sagittal histological section was studied from the lateral, central, and medial thirds of 53 left mandibular condyles. Outline tracings of the articular and compact bone surface were divided into anterior, superior, and posterior sectors for the study of curvature measured by the overlaying of a template of a harmonic series of arcs. The thickness and composition of the articular tissues were measured in each sector by light microscopy. The fibrous connective tissue layer always maintained the articular surface, even in the absence of a cartilage layer. The histological character, including the presence or absence of cartilage, rather than the overall tissue thickness, was considered to be a more useful marker of functionally stimulated changes in the joint. Articular soft-tissue thickness was not related to surface deviation in form and was not correlated with age in this young adult sample. Reduced soft-tissue thickness in the anterior part of the condyle was more common in cases with lack of molar support. Dental attrition was not a useful predictor of soft-tissue thickness. Compact bone contour correlated with soft-tissue contour in the superior (r = 0.816) and posterior (r = 0.808) sectors, explaining only 64% of the variance, but not in the anterior sector (r = 0.265). Thicker or thinner articular soft tissue was not predictable by the underlying compact bone contour or thickness. Therefore, the clinician should not automatically assume that the radiographic osseous image represents the actual articular surface.
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Tallarico, Marco, Francesco Mattia Ceruso, Leonardo Muzzi, et al. "Effect of Simultaneous Immediate Implant Placement and Guided Bone Reconstruction with Ultra-Fine Titanium Mesh Membranes on Radiographic and Clinical Parameters after 18 Months of Loading." Materials 12, no. 10 (2019): 1710. http://dx.doi.org/10.3390/ma12101710.

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Background: The aim of the present prospective case series study was to evaluate the implant and prosthetic survival rates, complications and marginal bone loss using ultra-fine titanium mesh membrane with simultaneous implant placement, to provide space maintenance mandatory for guided bone reconstruction of alveolar bone defects. Materials and Methods: patients were recruited and treated at a private clinic in Rome, Italy, between March 2016 and October 2017. Self-tapping tapered implants were placed through a computer-guided template-assisted approach. Autogenous bone was placed alone over the exposed implant surface, then mixed with inorganic bovine bone material. Finally, the membrane was connected and shaped in order to securely enclose the graft area, and the healing cap was connected and screwed onto the height connector. Outcome measures were: implant and prosthetic failure, biological and mechanical complications, marginal and volumetric bone level changes, esthetic evaluation performed according to the pink aesthetic score (PES). Results: in total, seven patients (five women, two men) with a mean age of 52.7 ± 20.3 years (range: 27–71) received 10 self-tapping tapered implants and simultaneous guided bone regeneration with ultra-fine titanium mesh membranes. No implants and no prostheses failed during the entire follow-up period. One slightly membrane exposure was observed one month after implant placement in one patient. The mean marginal bone loss (MBL) at implant loading was 0.13 ± 0.09 mm (95% CI 0.08–0.19). At the 18-month follow-up examination, the mean MBL was 0.28 ± 0.33 mm (95% CI 0.07–0.50) The difference was not statistically significant (0.15 ± 0.31; 95% CI 0.05–0.35; P = 0.1888). The mean horizontal alveolar ridge width was 3.72 ± 1.08 mm (95% CI 3.22–4.22 mm). At the II-stage surgery, the mean bone width was 8.79 ± 0.98 mm (95% CI 8.51–9.07 mm). The mean bone gain was 5.06 ± 1.13 mm (95% CI 4.68–5.44 mm; P = 0.000). The mean volume of the grafted bone calculated using the superimposition technique was 0.99 ± 0.38 CC (95% CI 0.75–1.23 CC). The mean PES at implant loading was 8.2 ± 0.8 mm (95% CI 7.7–8.7). At the 18-month follow-up examination, the mean PES was 12.0 ± 0.7 mm (95% CI 11.5–12.5) The difference was statistically significant (3.8 ± 0.4; 95% CI 3.5–4.1; P = 0.0000); Conclusion: with the limitation of the present prospective study, the guided bone reconstruction using an ultra-fine titanium mesh membrane with simultaneous implant placement seems to provide good and stable results in implant/prosthesis success. Further research with a longer follow-up and a higher sample size are needed to confirm the results from this preliminary report.
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Lacerda, Rosa Helena Wanderley, Isis de Araújo Ferreira Muniz, Alexandre Rezende Vieira, and Paulo Rogério Ferreti Bonan. "Reliability of methods using a new graphic template to evaluate alveolar bone graft in cleft lip palate on radiographs." Research, Society and Development 10, no. 12 (2021): e138101220068. http://dx.doi.org/10.33448/rsd-v10i12.20068.

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This research aimed to evaluate the reliability of methods using a new graphic template to evaluate alveolar bone graft in cleft lip palate on radiographs. The sample consisted of 30 radiographs of individuals with bone grafts that were analyzed by two raters using SWAG and Chelsea, alveolar bone graft rating methods. The images were analyzed in PowerPoint, and second, introducing a template, that was designed in PowerPoint by the examiners. The inter-reliability and intra-reliability were determined using weighted Kappa statistics, with and without the template, in Jamovi 1.2 software. The determination of the intra-reliability was performed through the random selection of 10 radiographs. Inter-rater reliability in SWAG and Chelsea methods without the template, were moderate (0.574 and 0.519) and with was good (0.745 and 0.735) in both scales. Intra-rater reliability was good (0.710-0.610 and 0.634-0.639) in SWAG and Chelsea methods without the template, and including, this reliability was very good (1 and 0.846) in SWAG scale and good to very good (0.872 and 0.762) in Chelsea method. The use of a template to evaluate the images of alveolar bone grafts in both methods had a positive impact on the results, increasing inter-rater to good and intra-rater reliability to very good.
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47

Haefeli, M., D. J. Schaefer, R. Schumacher, M. Müller-Gerbl, and P. Honigmann. "Titanium template for scaphoid reconstruction." Journal of Hand Surgery (European Volume) 40, no. 5 (2014): 526–33. http://dx.doi.org/10.1177/1753193414549008.

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Reconstruction of a non-united scaphoid with a humpback deformity involves resection of the non-union followed by bone grafting and fixation of the fragments. Intraoperative control of the reconstruction is difficult owing to the complex three-dimensional shape of the scaphoid and the other carpal bones overlying the scaphoid on lateral radiographs. We developed a titanium template that fits exactly to the surfaces of the proximal and distal scaphoid poles to define their position relative to each other after resection of the non-union. The templates were designed on three-dimensional computed tomography reconstructions and manufactured using selective laser melting technology. Ten conserved human wrists were used to simulate the reconstruction. The achieved precision measured as the deviation of the surface of the reconstructed scaphoid from its virtual counterpart was good in five cases (maximal difference 1.5 mm), moderate in one case (maximal difference 3 mm) and inadequate in four cases (difference more than 3 mm). The main problems were attributed to the template design and can be avoided by improved pre-operative planning, as shown in a clinical case. Level of evidence: V
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Newman, Michael, and David Hartwright. "Assessment of an Orthopaedic Templating Software Package for Uncemented Total Hip Arthroplasty." Journal of Hip Surgery 4, no. 04 (2020): 155–57. http://dx.doi.org/10.1055/s-0040-1716575.

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AbstractThe aim of this study was to assess a large, single-surgeon dataset of uncemented total hip arthroplasties that had been templated using software. This assessment compared preoperative templated predictions with what was implanted with regard to (1) femoral prosthesis size and (2) acetabular cup size. The operation notes for two types of uncemented total hip arthroplasty performed by a single surgeon between January 9, 2008, and March 21, 2019, were assessed. The data were refined so that only those that were fully templated on a correctly calibrated pelvic radiograph were included. This provided a total of 153 cases. The predicted software template was compared with actual implanted component sizes. With regard to the femoral stems, the templating software was exactly correct in 45.75% of cases and was accurate to within one size in 87.59% of cases. With regard to the acetabular component, the templating software was exactly correct in 52.94% of cases and was accurate to within one size (2 mm) in 86.94% of cases. Templating software offers an accurate prediction of the size of uncemented femoral and acetabular components. In addition, the benefits of templating include cognitive rehearsal, insight into potentially challenging aspects of surgery, and highlighting intraoperative issues where there is a large intraoperative deviation from what is templated. This study demonstrates the congruence and reproducibility of templating software when compared with other smaller studies performed in the literature.
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El-Baz, Ayman, Ahmed Elnakib, Mohamed Abou El-Ghar, Georgy Gimel'farb, Robert Falk, and Aly Farag. "Automatic Detection of 2D and 3D Lung Nodules in Chest Spiral CT Scans." International Journal of Biomedical Imaging 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/517632.

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Automatic detection of lung nodules is an important problem in computer analysis of chest radiographs. In this paper, we propose a novel algorithm for isolating lung abnormalities (nodules) from spiral chest low-dose CT (LDCT) scans. The proposed algorithm consists of three main steps. The first step isolates the lung nodules, arteries, veins, bronchi, and bronchioles from the surrounding anatomical structures. The second step detects lung nodules using deformable 3D and 2D templates describing typical geometry and gray-level distribution within the nodules of the same type. The detection combines the normalized cross-correlation template matching and a genetic optimization algorithm. The final step eliminates the false positive nodules (FPNs) using three features that robustly define the true lung nodules. Experiments with 200 CT data sets show that the proposed approach provided comparable results with respect to the experts.
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Michalíková, Monika, Teodor Tóth, Viktória Rajťúková, and Jozef Živčák. "The Digital Pre-Operative Planning of Hip Surgical Interventions." Solid State Phenomena 199 (March 2013): 350–55. http://dx.doi.org/10.4028/www.scientific.net/ssp.199.350.

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Computer technology has many applications in different fields of industry, health care and medicine. This encompasses paper-based information processing as well as data processing machines (Hospital information system or Clinical information system) and image digitalization of a large variety of medical diagnostic equipment (e.g. computer images of X-ray, MR, CT). The aim of the computer technology in medicine is to achieve the best possible support of patient care, preoperative surgery planning and administration by electronic data processing. At the present time in many countries of the worlds preoperative planning of interventions for lumbar joint is realized with caliper, protractor, plastic templates and x-ray images. Orthopaedic surgeons use transparent template radiographs as part of pre-operative planning in order to gauge the suitability and correct size of an implant. The newly developed CoXaM software offers a simple solution of the problems by using the digital x-ray images and handmade transparent plastic templates. The CoXaM software was developed in Visual Studio 2005 in the Visual C++ programming language at the Department of Biomedical Engineering and Measurement at the Faculty of Mechanical Engineering, Technical University of Kosice. The software was designed for pre-operative planning and helps to determine on the X-ray image a length dimensions, a center of rotation, an angle values. It enables the digitalization of plastic templates from several producers, which will assess the suitability of the type of implant.
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