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Articles de revues sur le sujet « Knee »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 25 juillet 2025

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1

Wilding, Christopher P., Martyn Snow, and Lee Jeys. "Which factors affect the ability to kneel following total knee arthroplasty? An outpatient study of 100 postoperative knee replacements." Journal of Orthopaedic Surgery 27, no. 3 (2019): 230949901988551. http://dx.doi.org/10.1177/2309499019885510.

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Background: Kneeling is an important activity of daily living, holding social, religious and occupational value. Following total knee replacement (TKR), many patients report they are unable to kneel or have been advised not to kneel. Methods: We observed 100 consecutive knee replacements in 79 patients attending outpatient clinic at a minimum 5 months post-TKR. The patients were asked to fill out a questionnaire detailing whether they were able to kneel prior to their knee replacement and whether they thought they were able to kneel since their knee replacement. The patients were then asked to

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Fahlman, Lissa, Emmeline Sangeorzan, Nimisha Chheda, and Daphne Lambright. "Older Adults without Radiographic Knee Osteoarthritis: Knee Alignment and Knee Range of Motion." Clinical Medicine Insights: Arthritis and Musculoskeletal Disorders 7 (January 2014): CMAMD.S13009. http://dx.doi.org/10.4137/cmamd.s13009.

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This study describes knee alignment and active knee range of motion (ROM) in a community-based group of 78-year old adults (n = 143) who did not have radiographic evidence of knee osteoarthritis in either knee (KL < 2). Although knee malalignment is a risk factor for knee osteoarthritis, most women and men had either valgus or varus alignments. Notably, no men were valgus in both knees. Women with both knees valgus had significantly greater body mass index ( P > 0.001) than women with varus or straight knees. Men and women with valgus or varus knee alignments had generally lower ROM than

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Ismail, Shiek Abdullah, Milena Simic, Lucy J. Salmon, et al. "Side-to-Side Differences in Varus Thrust and Knee Abduction Moment in High-Functioning Individuals With Chronic Anterior Cruciate Ligament Deficiency." American Journal of Sports Medicine 47, no. 3 (2018): 590–97. http://dx.doi.org/10.1177/0363546518812883.

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Background: There is evidence that frontal plane knee joint motion plays a crucial role in the pathogenesis of knee osteoarthritis, yet investigation of individuals with chronic anterior cruciate ligament–deficient (ACLD) knees remains sparse. Purpose: To investigate (1) if individuals with chronic ACLD knees demonstrate higher biomechanical measures of medial knee load as compared with their anterior cruciate ligament–intact (ACLI) knees, (2) if differences in static knee alignment of the ACLD knee will demonstrate a difference in the magnitude of biomechanical measures of medial knee load wh

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Mohd Nizlan, Nasir, Fauzah Abd Ghani, and Rohaman Tasarib. "Acute Post-Traumatic Locked Knee - An Unmasking of a Rare Knee Disorder." Malaysian Journal of Medicine and Health Sciences 18, no. 5 (2022): 215–17. http://dx.doi.org/10.47836/mjmhs.18.5.29.

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Locked knees are commonly caused by meniscal tears, floating osteochondral bodies, ruptured anterior cruciate ligament (ACL) stump, or other mechanical origins in the knee. Some locked knees occur spontaneously, while in most cases, by a preceding knee trauma. Locked knees are rarely caused by a pathological growth in the knee. More unusually is the occurrence of locked knee caused by a pre-existing pathological entity after a traumatic event. We report a rare case of locking in the knee by a pre-existing knee condition presented only after trauma to the knee. This case emphasizes that locking

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Agarwal, A., S. Miller, W. Hadden, et al. "Comparison of gait kinematics in total and unicondylar knee replacement surgery." Annals of The Royal College of Surgeons of England 101, no. 6 (2019): 391–98. http://dx.doi.org/10.1308/rcsann.2019.0016.

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Introduction This study is aimed to compare kinematic gait data of patients who have undergone total and unicondylar knee replacement. Materials and methods This single-surgeon retrospective cohort study evaluated 13 patients with unilateral total knee arthroplasty (TKA) and 14 unicondylar knee arthroplasty (UKA). Gait analysis was carried out using a Vicon motion analysis system. The limits of knee flexion during stance phase, at heel strike and at loading response were measured. Results The total range of motion of the UKA knees was significantly greater than the TKA knees. UKA knees exhibit

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Ekholm, J., R. Nisell, U. P Arborelius, C. Hammerberg, and G. Németh. "Load on knee joint structures and muscular activity during lifting." Journal of Rehabilitation Medicine 16, no. 1 (2020): 1–9. http://dx.doi.org/10.2340/16501977841619.

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The load on the knee joints during lifting has been less studied than low back load. Healthy subjects lifted a 12.8-kg box from floor to table-level in three different ways; 1) with straight knees, 2) with bent knees and the box in front of the knees, and 3) with bent knees and the box between the knees. The loading moment of force about the bilateral knee axis was calculated by means of a computerized static sagittal plane model. Electromyography was recorded from quadriceps and ischiocrural muscles. The beginning of the flexed-knee lifts caused a flexing loading knee moment of about 50 Nm an

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Nachtnebl, Luboš, Vasileios Apostolopoulos, Michal Mahdal, et al. "Implant Preference and Clinical Outcomes of Patients with Staged Bilateral Total Knee Arthroplasty: All-Polyethylene and Contralateral Metal-Backed Tibial Components." Journal of Clinical Medicine 12, no. 23 (2023): 7438. http://dx.doi.org/10.3390/jcm12237438.

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Numerous studies have compared metal-backed components (MBTs) and all-polyethylene tibial components (APTs), but none of them specifically analysed the clinical results and the overall patient preference in patients who had undergone a staged bilateral knee replacement. The purpose of this study is to compare clinical results, perceived range of motion, and overall implant preference among patients who had undergone staged bilateral knee replacement with an APT and contralateral knee replacement with MBTs. A dataset of 62 patients from a single centre who underwent staged bilateral TKA between

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Nagai, Kanto, Elmar Herbst, Tom Gale, et al. "Patient-reported outcome measures following anterior cruciate ligament reconstruction are not related to dynamic knee extension angle." Journal of ISAKOS: Joint Disorders & Orthopaedic Sports Medicine 3, no. 1 (2018): 33–37. http://dx.doi.org/10.1136/jisakos-2017-000173.

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ObjectivesControversy still exists on whether knee hyperextension affects the outcome following anterior cruciate ligament reconstruction (ACL-R). Therefore, the purpose of the present study was to determine if maximum knee extension angle of ACL-R knees and contralateral uninjured knees during walking is related to the clinical outcome following ACL-R. It was hypothesised that maximum knee extension angle would not be significantly correlated with patient-reported outcome measures (PROMs) following ACL-R.MethodsForty-two patients (age at surgery: 23±9 years, 23 male and 19 female) underwent u

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Ebied, Ayman M., Hany Elsayed, and Osama Gamal. "Sex-specific versus standard posterior cruciate-substituting total knee prosthesis." Egyptian Orthopaedic Journal 56, no. 2 (2021): 82–88. http://dx.doi.org/10.4103/eoj.eoj_67_21.

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Background The introduction of sex-specific (SS) knee prosthesis designs was an approach to offer more sizing options and is based on the anatomic sex differences. These SS components were though to provide better fitting to female femora and consequently improve the clinical outcome. Materials and methods In the period between February 2011 and March 2013, a prospective superiority randomized controlled clinical trial was conducted to compare the clinical outcome of SS versus the standard posterior stabilized (PS) knee prosthesis in women. The primary outcome measure was the postoperative ran

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Zhou, Xinhua, Min Wang, Chao Liu, Liang Zhang, and Yixin Zhou. "Total knee arthroplasty for severe valgus knee deformity." Chinese Medical Journal 127, no. 6 (2014): 1062–66. http://dx.doi.org/10.3760/cma.j.issn.0366-6999.20132488.

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Background Primary total knee arthroplasty (TKA) in severe valgus knees may prove challenging, and choice of implant depends on the severity of the valgus deformity and the extent of soft-tissue release. The purpose of this study was to review 8 to 11 years (mean, 10 years) follow-up results of primary TKA for varient-III valgus knee deformity with use of different type implants. Methods Between January 2002 and January 2005, 20 women and 12 men, aged 47 to 63 (mean, 57.19±6.08) years old, with varient-III valgus knees underwent primary TKA. Of the 32 patients, 37 knees had varient-III deformi

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Amin, Raj M., Vikram Vasan, and Julius K. Oni. "Kneeling after Total Knee Arthroplasty." Journal of Knee Surgery 33, no. 02 (2019): 138–43. http://dx.doi.org/10.1055/s-0038-1676801.

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AbstractThe ability to kneel is one of the many patient goals after total knee arthroplasty (TKA). Few studies have addressed patients' ability to kneel after TKA as a primary outcome. Given the altered biomechanics of the knee after TKA, the various implant designs, and multiple surgical approaches, there is a need to further understand the patient's kneeling ability after TKA. We evaluated the available literature on this topic to help to guide postoperative care recommendations. Biomechanical data show that the load borne by the patellofemoral joint is elevated significantly at all flexion

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Lee, SeungHoon, YunSeong Choi, JaeHyuk Lee, HeeDong Lee, JungRo Yoon, and ChongBum Chang. "Valgus Arthritic Knee Responds Better to Conservative Treatment than the Varus Arthritic Knee." Medicina 59, no. 4 (2023): 779. http://dx.doi.org/10.3390/medicina59040779.

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Background and Objectives: Clinically, it is beneficial to determine the knee osteoarthritis (OA) subtype that responds well to conservative treatments. Therefore, this study aimed to determine the differences between varus and valgus arthritic knees in the response to conservative treatment. We hypothesized that valgus arthritic knees would respond better to conservative treatment than varus arthritic knees. Materials and Methods: Medical records of 834 patients who received knee OA treatment were retrospectively reviewed. Patients with Kellgren–Lawrence grades III and IV were divided into tw

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Hiranaka, Takafumi, Yuichi Hida, Takaaki Fujishiro, et al. "Approximately 30% of Functioning Anterior Cruciate Ligaments Are Sacrificed for Knee Arthroplasty." Journal of Knee Surgery 33, no. 07 (2019): 655–58. http://dx.doi.org/10.1055/s-0039-1683928.

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AbstractThe anterior cruciate ligament (ACL) plays an important role in knee kinematics. Unicompartmental knee arthroplasty (UKA) preserves the ACL, an advantage over total knee arthroplasty (TKA), where it is sacrificed. This study aims to evaluate how often functional ACLs are sacrificed in arthroplasty. The type of arthroplasty (TKA or UKA) and condition of the ACL were studied in a total of 1,586 knees in 1,052 patients who underwent knee arthroplasties. Of 1,586 knees, TKA was performed on 653 knees (41%) and UKA on 933 knees (59%). The ACL was functioning in 77% of all knees. Of the TKA

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HARMAN, MELINDA K., SCOTT A. BANKS, BENJAMIN J. FREGLY, W. GREGORY SAWYER, and W. ANDREW HODGE. "BIOMECHANICAL MECHANISMS FOR DAMAGE: RETRIEVAL ANALYSIS AND COMPUTATIONAL WEAR PREDICTIONS IN TOTAL KNEE REPLACEMENTS." Journal of Mechanics in Medicine and Biology 05, no. 03 (2005): 469–75. http://dx.doi.org/10.1142/s0219519405001588.

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Damage patterns on the articular surface of the proximal tibia, including cartilage degeneration in osteoarthritic knees and damage of polyethylene knee prostheses after total knee replacement, provide information related to knee joint biomechanics and damage mechanisms at the articular surface. This study reports articular damage patterns and knee kinematics assessed in the knees of older subjects, before and after total knee replacement. The damage patterns are used to evaluate computational dynamic contact and tribological models that predict polyethylene damage in a patient-specific total

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Hösl, Matthias, Antonia Thamm, Faik Kamel Afifi, and Sean Nader. "Frontal Plane Knee Kinematics and Kinetics During Gait in Children and Youth with Achondroplasia—Correspondence with Static X-Ray Images and Relevance to Symptoms." Children 12, no. 1 (2025): 78. https://doi.org/10.3390/children12010078.

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Background: Frontal knee malalignments are hallmarks of Achondroplasia (ACH), along with disproportional short stature. Typically, X-rays are used to assess them, but 3D gait analysis (3DGA) may additionally be used to evaluate dynamic knee function. The research questions were as follows: (1) What is the relationship between X-rays and 3DGA in ACH? (2) Do children with ACH have abnormal frontal knee kinematics and kinetics? (3) Are there aspects of 3DGA that relate to knee symptoms? Methods: A total of 62 knees of 31 children with ACH (age: 11.1 ± 4.3 years, 34 symptomatic knees) underwent 3D

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Kivimäki, J., H. Riihimäki, and H. Alaranta. "Knee disorders in carpet and floor layers and painters. Part I. Isometric knee extension and flexion torques." Journal of Rehabilitation Medicine 26, no. 2 (1994): 91–95. http://dx.doi.org/10.2340/16501977949195.

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Knee morbidity, knee extension torque and knee flexion torque were examined among 168 actively working carpet and floor layers and 146 painters. The study included a questionnaire concerning knee disorders and knee symptoms, a clinical examination of the knees and measurement of isometric knee extension and flexion torque. Knee accidents were reported more frequently by carpet and floor layers than by painters. Tenderness of the knees was noted to an equal extent in the two groups. Knee extension torques gradually decreased by increasing age among carpet and floor layers, but not among painter

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Kivimäki, J., H. Riihimäki, and H. Alaranta. "Knee disorders in carpet and floor layers and painters. Part I. Isometric knee extension and flexion torques." Journal of Rehabilitation Medicine 26, no. 2 (1994): 91–95. http://dx.doi.org/10.2340/1650197719942629195.

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Knee morbidity, knee extension torque and knee flexion torque were examined among 168 actively working carpet and floor layers and 146 painters. The study included a questionnaire concerning knee disorders and knee symptoms, a clinical examination of the knees and measurement of isometric knee extension and flexion torque. Knee accidents were reported more frequently by carpet and floor layers than by painters. Tenderness of the knees was noted to an equal extent in the two groups. Knee extension torques gradually decreased by increasing age among carpet and floor layers, but not among painter

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Iriuchishima, Takanori, and Keinosuke Ryu. "A Comparison of Rollback Ratio between Bicruciate Substituting Total Knee Arthroplasty and Oxford Unicompartmental Knee Arthroplasty." Journal of Knee Surgery 31, no. 06 (2017): 568–72. http://dx.doi.org/10.1055/s-0037-1604445.

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AbstractThe purpose of this study was to compare the rollback ratio in bicruciate substituting (BCS) total knee arthroplasty (TKA) and bicruciate-retaining Oxford unicompartmental knee arthroplasty (UKA). In this study, 64 subjects (64 knees) undergoing BCS-TKA (Journey II: Smith and Nephew) and 50 subjects (50 knees) undergoing Oxford UKA (Zimmer-Biomet holdings, Inc., IN) were included. Approximately 6 months after surgery, and when the subjects had recovered their knee range of motion, following the Laidlow's method, lateral radiographic imaging of the knee was performed with active full kn

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WISE, BARTON L., DAVID T. FELSON, MARGARET CLANCY, et al. "Consistency of Knee Pain and Risk of Knee Replacement: The Multicenter Osteoarthritis Study." Journal of Rheumatology 38, no. 7 (2011): 1390–95. http://dx.doi.org/10.3899/jrheum.100743.

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Objective.To examine whether the consistency or persistence of knee pain, in addition to its severity, predicts incident total knee replacement (TKR).Methods.The Multicenter Osteoarthritis Study (MOST) is a longitudinal study of persons aged 50 to 79 years with symptomatic knee osteoarthritis or at high risk of disease. Subjects were queried about the presence of knee pain on most days of the previous 30 days (i.e., frequent knee pain; FKP) at 2 timepoints: a telephone screen followed by a clinic visit (median separation 4 weeks). We defined a knee as having “consistent pain” if the subject an

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Sava, Manuel-Paul, Alexandra Leica, Felix Amsler, Sotirios Leles, and Michael T. Hirschmann. "Only 26% of Native Knees Show an Identical Coronal Functional Knee Phenotype in the Contralateral Knee." Journal of Personalized Medicine 14, no. 2 (2024): 193. http://dx.doi.org/10.3390/jpm14020193.

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Background: A comprehensive exploration evaluating left-to-right knee symmetry across all anatomical planes utilizing three-dimensional (3D) scans stands absent from the existing body of research. Therefore, the primary objectives of this investigation involved examining potential differences and resemblances in alignment and structure between left and right non-osteoarthritic (native) knees in various planes (coronal, sagittal, and axial) using three-dimensional single-photon emission computed tomography/computed tomography (SPECT/CT) images. Methods: A total of 282 native knees from 141 pati

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Kijima, Hiroaki, Naohisa Miyakoshi, Yuji Kasukawa, et al. "Cut-Off Value of Medial Meniscal Extrusion for Knee Pain." Advances in Orthopedics 2017 (2017): 1–4. http://dx.doi.org/10.1155/2017/6793026.

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Purpose. Medial meniscal extrusion (MME) has attracted attention as an index of knee pain in conjunction with clinical symptoms that could be more useful than the diagnosis of knee osteoarthritis on X-ray. However, the size of MME that would cause knee pain has not been clarified. The aim of the present study was to investigate the cut-off value of MME for knee pain. Methods. A total of 318 knees were evaluated. The presence of current or past knee pain was confirmed by interview. Next, MME was measured using vertical sonographic images of the medial joint spaces during weightbearing. Results.

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Blaisdell, Jay, and James Talmage. "Rating Knee Impairments." Guides Newsletter 23, no. 1 (2018): 14–16. http://dx.doi.org/10.1001/amaguidesnewsletters.2018.janfeb04.

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Abstract Workers who kneel for major portions of their workday (eg, floor and roof installers) may be prone to inflammation of the knee bursae and patellofemoral pain. In the AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), range-of-motion (ROM) and diagnosis-based impairment (DBI) are the two possible stand-alone methods for rating knee impairment. The ROM method was widely used in previous editions of the AMA Guides, but at present DBI is the method of choice for calculating impairment. To rate knee impairment using the DBI method, the physician first chooses the appropriat

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White, Leigh, Nicholas Hartnell, Melissa Hennessy, and Judy Mullan. "The Impact of an Intact Infrapatellar Fat Pad on Outcomes after Total Knee Arthroplasty." Advances in Orthopedic Surgery 2015 (November 16, 2015): 1–6. http://dx.doi.org/10.1155/2015/817906.

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Background. The infrapatellar fat pad (IPFP) is currently resected in approximately 88% of Total Knee Arthroplasties (TKAs). We hypothesised that an intact IPFP would improve outcomes after TKA. Methods. Patients with an intact IPFP participated in this cross-sectional study by completing two surveys, at 6 and 12 months after TKA. Both surveys included questions regarding kneeling, with the Oxford Knee Score also included at 12 months. Results. Sixty patients participated in this study. At 6 and 12 months, a similar number of patients were able to kneel, 40 (66.7%) and 43 (71.7%), respectively

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Anand, TS, and S. Sujatha. "A method for performance comparison of polycentric knees and its application to the design of a knee for developing countries." Prosthetics and Orthotics International 41, no. 4 (2016): 402–11. http://dx.doi.org/10.1177/0309364616652017.

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Background:Polycentric knees for transfemoral prostheses have a variety of geometries, but a survey of literature shows that there are few ways of comparing their performance.Objectives:Our objective was to present a method for performance comparison of polycentric knee geometries and design a new geometry.Study design:In this work, we define parameters to compare various commercially available prosthetic knees in terms of their stability, toe clearance, maximum flexion, and so on and optimize the parameters to obtain a new knee design.Methods:We use the defined parameters and optimization to

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Reddy, K. Vijaya Bhaskar, N. Brahma Chary, and Birru Sumanth. "A study on functional outcome of posterior cruciate ligament substituted total knee arthroplasty." International Journal of Research in Orthopaedics 7, no. 6 (2021): 1161. http://dx.doi.org/10.18203/issn.2455-4510.intjresorthop20214182.

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<p class="abstract"><strong>Background: </strong>Total knee replacement surgery is considered as a treatment of choice in patients with advanced arthritis, especially in patients where conservative treatment has been failed. Total knee replacement gives good pain relief, functional improvement of knee and correction of deformity.</p><p class="abstract"><strong>Methods:</strong> This is study of 39 patients following total knee arthroplasty, who were operated between August 2017 and March 2020 at MNR Medical College and Hospital, Sangareddy. They were f

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Unat, Beytullah, and G. Karakurum. "Midterm Outcomes of Posterior Cruciate Ligament Substituting Total Knee Arthroplasty." Annals of Medical Research 30, no. 11 (2023): 1. http://dx.doi.org/10.5455/annalsmedres.2023.09.250.

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Objective: In the present study, it is aimed to retrospectively investigate and present the midterm results of the cases with posterior cruciate ligament (PCL) substituting total knee arthroplasty. Materials and Methods: In this study, we included a total of 61 patients with 80 knees who underwent PCL-substituting total knee arthroplasty between July 2006 and June 2012. Results: 52 patients were female and 9 were male. The mean age of patients was 65.4 (42-85) years and the mean follow up period was 32.6 (12-72) months. Patients were evaluated according to the American Knee Society Score for k

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C, Kavinaya, and Ashuthoshkumar L. "Various Knee Model Measurement Techniques to Find the Knee Geometries." International Journal of Pharmacy and Biomedical Engineering 3, no. 3 (2016): 4–6. http://dx.doi.org/10.14445/23942576/ijpbe-v3i3p102.

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Computation of knee modeling is a subject-specific techniquethatdefining the zero-load measurements of the cruciate and indemnity ligaments.The dynamic knee simulator was used to test the three carcass knees. The carcass knees also experiencedphysicalsachet of motion testing to discovery their inactivesort of motion in order to regulate the zero-load measurements for everymuscle bundle. Compotation multibody knee representations were shaped for each knee and classical kinematics were likened to investigational kinematics for a replicated walk series. Simple-minded non-linear mechanisminhibitio

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Hildebrand, Kevin A., Michael Holmberg, and Nigel Shrive. "A New Method to Measure Post-Traumatic Joint Contractures in the Rabbit Knee." Journal of Biomechanical Engineering 125, no. 6 (2003): 887–92. http://dx.doi.org/10.1115/1.1634285.

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A new device and method to measure rabbit knee joint angles are described. The method was used to measure rabbit knee joint angles in normal specimens and in knee joints with obvious contractures. The custom-designed and manufactured gripping device has two clamps. The femoral clamp sits on a pinion gear that is driven by a rack attached to a materials testing system. A 100 N load cell in series with the rack gives force feedback. The tibial clamp is attached to a rotatory potentiometer. The system allows the knee joint multiple degrees-of-freedom (DOF). There are two independent DOF (compress

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Sandeep, Chauhan, Mansotra Sahil, Singh Sahni Maninder, and Sharma Arnav. "Role of Patelloplasty in Relieving Anterior Knee Pain and Improve Patellar Tracking in Total Knee Arthroplasty." International Journal of Pharmaceutical and Clinical Research 16, no. 8 (2024): 1538–42. https://doi.org/10.5281/zenodo.13732640.

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<strong>Background:</strong> Addressing anterior knee pain post-total knee arthroplasty (TKA) remains a significant concern. This study aims to present early outcomes of employing patelloplasty to alleviate such pain in TKA patients. <strong>Methods: </strong>A prospective review was conducted on 38 knees from 35 patients who underwent TKA between 2018 and 2022. Knee and function scores according to the Knee Society assessment, patellar scores using Feller’s questionnaire, knee range of motion, and patient satisfaction were evaluated preoperatively and postoperatively.&nbs

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Norouzi, Sadegh, Fateme Esfandiarpour, Ali Shakourirad, Reza Salehi, Mohammad Akbar, and Farzam Farahmand. "Rehabilitation after ACL Injury: A Fluoroscopic Study on the Effects of Type of Exercise on the Knee Sagittal Plane Arthrokinematics." BioMed Research International 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/248525.

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A safe rehabilitation exercise for anterior cruciate ligament (ACL) injuries needs to be compatible with the normal knee arthrokinematics to avoid abnormal loading on the joint structures. The objective of this study was to measure the amount of the anterior tibial translation (ATT) of the ACL-deficient knees during selective open and closed kinetic chain exercises. The intact and injured knees of fourteen male subjects with unilateral ACL injury were imaged using uniplanar fluoroscopy, while the subjects performed forward lunge and unloaded/loaded open kinetic knee extension exercises. The AT

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Thilak, Jai, Srivatsa Nagaraja Rao, Vipin Mohan, and Balu C. Babu. "Image-based robot assisted bicompartmental knee arthroplasty versus total knee arthroplasty." SICOT-J 8 (2022): 48. http://dx.doi.org/10.1051/sicotj/2022048.

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Objective: To evaluate the short-term clinical outcomes of image-based robot-assisted bicruciate retaining bicompartmental knee arthroplasty and compare it to robot-assisted total knee arthroplasty in the Indian population. Methods: Between December 2018 and November 2019, five patients (six knees) underwent robot-assisted bicompartmental knee arthroplasty (BCKA). These patients were demographically matched with five patients (six knees) who underwent robot-assisted total knee arthroplasty (TKA) during the same period. Clinical outcomes of these twelve knees were assessed in the form of knee s

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Heinrichs, Christian H., Dominik Knierzinger, Hannes Stofferin, and Werner Schmoelz. "Validation of a novel biomechanical test bench for the knee joint with six degrees of freedom." Biomedical Engineering / Biomedizinische Technik 63, no. 6 (2018): 709–17. http://dx.doi.org/10.1515/bmt-2016-0255.

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AbstractA novel biomechanical test bench has been developed for in-vitro evaluation of the knee joint. The test bench allows the kinematics of the knee joint to be studied in all six degrees of freedom. Flexion-extension knee movements are induced by quadriceps and hamstring muscle forces simulated by five pneumatic cylinders. The kinematics of the knee and the actively applied muscle forces are measured simultaneously. The aim of this study was to validate the sensitivity and reproducibility of this novel test bench. Four fresh frozen human knees were tested three times, each with seven flexi

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Nielsen, Emil Toft, Kasper Stentz-Olesen, Sepp de Raedt, et al. "Influence of the Anterolateral Ligament on Knee Laxity: A Biomechanical Cadaveric Study Measuring Knee Kinematics in 6 Degrees of Freedom Using Dynamic Radiostereometric Analysis." Orthopaedic Journal of Sports Medicine 6, no. 8 (2018): 232596711878969. http://dx.doi.org/10.1177/2325967118789699.

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Background: An anterior cruciate ligament (ACL) rupture often occurs during rotational trauma to the knee and may be associated with damage to extracapsular knee rotation–stabilizing structures such as the anterolateral ligament (ALL). Purpose: To investigate ex vivo knee laxity in 6 degrees of freedom with and without ALL reconstruction as a supplement to ACL reconstruction. Study Design: Controlled laboratory study. Methods: Cadaveric knees (N = 8) were analyzed using dynamic radiostereometry during a controlled pivotlike dynamic movement simulated by motorized knee flexion (0° to 60°) with

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Driban, Jeffrey B., Grace H. Lo, Charles B. Eaton, Lori Lyn Price, Bing Lu, and Timothy E. McAlindon. "Knee Pain and a Prior Injury Are Associated with Increased Risk of a New Knee Injury: Data from the Osteoarthritis Initiative." Journal of Rheumatology 42, no. 8 (2015): 1463–69. http://dx.doi.org/10.3899/jrheum.150016.

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Objective.We explored whether knee pain or a history of knee injury were associated with a knee injury in the following 12 months.Methods.We conducted longitudinal knee-based analyses among knees in the Osteoarthritis Initiative. We included both knees of all participants who had at least 1 followup visit with complete data. Our first sets of exposures were knee pain (chronic knee symptoms and severity) at baseline, 12-month, 24-month, and 36-month visits. Another exposure was a history of injury that we defined as a self-reported injury at any time prior to baseline, 12-month, 24-month, or 36

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Freitas, Priscilla Da Silva, Caroline Cabral Robinson, Rodrigo Py Gonçalves Barreto, Milton Antonio Zaro, Luis Henrique Telles Da Rosa, and Marcelo Faria Silva. "Infrared thermography in adolescents with Osgood-Schlatter Disease." ConScientiae Saúde 12, no. 4 (2014): 513–18. http://dx.doi.org/10.5585/conssaude.v12n4.4319.

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Introduction: Thermography has been used to monitor musculoskeletal disorders, but no study has assessed thermal patterns of anterior tibial tuberosity inflammation that occurs in Osgood-Schlatter Disease (OSD). Objective: To investigate the patterns of knee temperature in adolescents with and without OSD. Methods: Twenty adolescents were separated into two groups: one comprising individuals with OSD and a control in which none had OSD. An infrared image of the knees was recorded after 15 minutes of acclimatization in a temperature-controlled environment, and the maximum absolute knee temperat

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Miller, S., A. Agarwal, WB Haddon, et al. "Comparison of gait kinetics in total and unicondylar knee replacement surgery." Annals of The Royal College of Surgeons of England 100, no. 4 (2018): 267–74. http://dx.doi.org/10.1308/rcsann.2017.0226.

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Introduction The aim of this study was to compare kinetical data from gait analysis of patients who have undergone total and uni-condylar knee replacement. Materials and methods Thirteen patients with unilateral total knee arthroplasty (TKA) and 13 unicondylar knee arthroplasty (UKA), were included, all performed by the same surgeon more than one year prior. The Vicon gait analysis system was used. Statistical power was calculated using SPSS. Results No significant difference was found in the spatiotemporal parameters of gait and survival years of the knee prosthesis between the two groups. Th

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Naredo, Esperanza. "Ultrasonographic findings in knee osteoarthritis: a comparative study with clinical and radiographic assessment." Osteoarthritis Cartilage 13, no. 7 (2005): 568–74. https://doi.org/10.1016/j.joca.2005.02.008.

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Objective: To compare ultrasonographic (US) findings with clinical and radiographic assessment in knee osteoarthritis (OA). Methods: Fifty patients with primary knee OA were studied. Clinical assessment of both knees was performed by the same rheumatologist who recorded a visual analogue scale (VAS) for pain (VASP). All patients underwent a US examination of their knees by a second blinded rheumatologist. Weight-bearing anteroposterior and lateral knee radiographs were read by a third blinded rheumatologist who assessed the Kellgren and Lawrence (K-L) grade, the femorotibial (FT) spa

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Hollman, John H., Robert H. Deusinger, Linda R. Van Dillen, and Matthew J. Matava. "Knee Joint Movements in Subjects Without Knee Pathology and Subjects With Injured Anterior Cruciate Ligaments." Physical Therapy 82, no. 10 (2002): 960–72. http://dx.doi.org/10.1093/ptj/82.10.960.

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Abstract Background and Purpose. Although weight-bearing (WB) exercise and increased hamstring muscle activity may contribute to knee joint stability in knees with an injured anterior cruciate ligament (ACL), the relationship among ACL integrity, muscle activity, and joint surface motion is not fully understood. The purpose of this study was to investigate whether knee joint rolling and gliding movements and electromyographic (EMG) activity differed between subjects with injured ACLs and subjects without knee pathology. Subjects. Fifteen subjects with injured ACLs (9 men and 6 women; mean age=

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Kijima, Hiroaki, Shin Yamada, Koji Nozaka, Hidetomo Saito, and Yoichi Shimada. "Relationship between Pain and Medial Meniscal Extrusion in Knee Osteoarthritis." Advances in Orthopedics 2015 (2015): 1–4. http://dx.doi.org/10.1155/2015/210972.

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Purpose. In knee osteoarthritis, the degree of pain varies despite similar imaging findings. If there were quantitative findings related to the pain of knee osteoarthritis, it could be used for diagnosis or screening. The medial meniscal extrusion was investigated as a candidate quantitative finding related to the pain of knee osteoarthritis.Methods. Seventy-six knees of 38 patients (mean age, 73 years) who received intra-articular injections of hyaluronic acid into unilateral knees at the time of diagnosis of knee arthritis were investigated. Cartilage thickness of the femoral medial condyle

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Vo, Minh Tu, Ambrish Singh, Tao Meng, et al. "Prevalence and Clinical Significance of Residual or Reconverted Red Bone Marrow on Knee MRI." Diagnostics 11, no. 9 (2021): 1531. http://dx.doi.org/10.3390/diagnostics11091531.

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Background: Residual/reconverted red bone marrow (RBM) in adult knees is occasionally observed on routine knee magnetic resonance imaging (MRI). We aimed to identify its prevalence, distribution, and associations with lifestyle factors, knee structural abnormalities, and knee symptoms in young adults. Methods: Participants (n = 327; aged = 31–41 years) were selected from the Childhood Determinants of Adult Health (CDAH) knee study. They underwent T1-weighted and proton-density-weighted fat-suppressed MRI scans of knees. Residual/reconverted RBM in distal femur and proximal tibia were graded se

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Harter, Rod A., Louis R. Osternig, and Kenneth M. Singer. "Knee Joint Proprioception Following Anterior Cruciate Ligament Reconstruction." Journal of Sport Rehabilitation 1, no. 2 (1992): 103–10. http://dx.doi.org/10.1123/jsr.1.2.103.

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This study evaluated knee joint position sense in the ACL-reconstructed and contralateral normal knees of 48 male and female subjects (M age 27.6 ± 6.9 yrs). Subjects were blindfolded and tested on their ability to actively reproduce five passively placed knee positions at 5° intervals between 35 and 15° of knee flexion. Mean algebraic target angle error and mean absolute error values were measured in degrees. The grand mean absolute error for the postsurgical knees at all positions was 5.4 ± 3.2°, compared with 5.2 ± 2.7° for the normal contralateral knees. There were no significant differenc

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Pirato, Francesco, Federica Rosso, Federico Dettoni, Davide Edoardo Bonasia, Matteo Bruzzone, and Roberto Rossi. "How to manage a native stiff knee." EFORT Open Reviews 9, no. 5 (2024): 363–74. http://dx.doi.org/10.1530/eor-24-0034.

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Knee stiffness is a widely known and worrying condition in several postoperative knees. Less is known about native stiff knee. The aim of this manuscript is to summarize the available literature on native stiff knee epidemiology, classification and treatment. In 1989 stiff knee was defined as a knee with less than 50° of total range of motion. If range of motion is <30°, it is defined as an ankylosed knee. Knee stiffness can be divided into three main types: flexion contractures, extension contractures, and combined contractures. Different risk factors have been associated to native stiff k

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Fosco, M., M. Filanti, L. Amendola, L. M. Savarino, and D. Tigani. "Total knee arthroplasty in stiff knee compared with flexible knees." MUSCULOSKELETAL SURGERY 95, no. 1 (2011): 7–12. http://dx.doi.org/10.1007/s12306-011-0099-6.

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JONES, RICHARD K., GRAHAM J. CHAPMAN, ANDREW H. FINDLOW, et al. "A New Approach to Prevention of Knee Osteoarthritis: Reducing Medial Load in the Contralateral Knee." Journal of Rheumatology 40, no. 3 (2013): 309–15. http://dx.doi.org/10.3899/jrheum.120589.

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Objective.Few if any prevention strategies are available for knee osteoarthritis (OA). In those with symptomatic medial OA, the contralateral knee may be at high risk of disease, and a reduction in medial loading in that knee might prevent disease or its progression there. Our aim was to determine how often persons with medial OA on 1 side had either concurrent or later medial OA on the contralateral side, and whether an intervention known to reduce medial loading in affected knees with medial OA might reduce medial loading in the contralateral knee. Lateral wedge insoles reduce loading across

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Artul, Suheil, Fadi Khazin, Jeries Hakim, and George Habib. "Ultrasonographic Findings in a Large Series of Patients with Knee Pain." Journal of Clinical Imaging Science 4 (August 30, 2014): 45. http://dx.doi.org/10.4103/2156-7514.139735.

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Background: Musculoskeletal ultrasound (MSKUS) is becoming more and more popular in the evaluation of different musculoskeletal abnormalities. The aim of this retrospective study was to document the prevalence and spectrum of MSKUS findings at the painful knee. Materials and Methods: All the studies of MSKUS that were performed for the evaluation of knee pain during the previous 2 years at the Department of Radiology in Nazareth hospital were reviewed. Demographic and clinical parameters including age, gender, side, and MSKUS findings were documented. Results: Two hundred and seventy-six patie

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Chillakuru, Cherith Reddy, N. Jambu, and Akshay Deepak. "A comparison of the proprioception of osteoarthritic knees and post total knee arthroplasty." International Journal of Research in Orthopaedics 3, no. 4 (2017): 781. http://dx.doi.org/10.18203/issn.2455-4510.intjresorthop20172525.

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<p class="abstract"><strong>Background:</strong> Proprioception of the knee joint is an important factor for establishing balance, and smooth walking. The effect of arthroplasty on proprioception can be a determinant of post-operative function and subjective feeling of the arthroplasty. We wished to check the status of osteoarthritic knees and how their proprioceptive function is, in comparison to knees post total knee replacement.</p><p class="abstract"><strong>Methods:</strong> We compared 80 unilateral knee replacement patients with their osteoarthr

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WANG, SHANGCHENG, ZHIHONG LIU, JIANMING FENG, LIANFU DENG, and NAIQUAN NIGEL ZHENG. "COMPARING TRANSVERSE PLANE BIOMECHANICS BETWEEN FIXED- AND MOBILE-BEARING TOTAL KNEE ARTHROPLASTY DURING LEVEL WALKING, STAIR NEGOTIATION AND PIVOTING." Journal of Mechanics in Medicine and Biology 19, no. 05 (2019): 1950028. http://dx.doi.org/10.1142/s0219519419500283.

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Compared with fixed-bearing (FB) total knee arthroplasty (TKA), mobile-bearing (MB) TKA may promote knee rotation and reduce rotational load at bone–implant interface. Unfortunately, this hypothesis has not been examined with neither knee rotation during stance of pivoting nor knee rotational moment during activities other than level walking. This study used 3D motion analysis to obtain the rotation of tibia relative to the femur and knee rotation moment during stance phase of level walking, stair ascent/descent, step and spin turn for 17 FB, 20[Formula: see text]MB and 28 healthy knees. Stati

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Alanazi Sultan, Mohammed J., Nida Suhail, Nadeem Kizilbash, Anil Mohan S. Rao, and Farah Siddiqui. "Investigation of Knee Osteoarthritis by Magnetic Resonance Imaging." Research Journal of Biotechnology 8, no. 20 (2025): 251. https://doi.org/10.25303/208rjbt2510255.

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The structural causes of knee Osteoarthritis are not well understood. They involve a number of pathways that comprise changes in structure and function of the knee joint. The risk factors for knee Osteoarthritis include obesity and major injury. The intensive use of the knee in jobs requiring heavy labor and bending of the knee increases the risk of knee Osteoarthritis. Magnetic resonance imaging (MRI) is a well-established imaging technique for visualizing the structural changes in the knees and it allows the investigation of knee osteoarthritis as well as the assessment of biochemical change

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McAuliffe, MJ, G. Garg, JA Roe, A. Vakili, SL Whitehouse, and RW Crawford. "How balanced is the knee when we start a total knee replacement?" Orthopaedic Journal of Sports Medicine 5, no. 5_suppl5 (2017): 2325967117S0016. http://dx.doi.org/10.1177/2325967117s00162.

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Objectives: Optimal coronal plane alignment for total knee arthroplasty (TKA) remains controversial. Understanding the pre-operative soft tissue status is important for optimizing the soft tissue envelope during TKA. The purpose of this study was to define the corrected, neutral (“pre-disease”) HKAA of end stage osteoarthritic knees prior to TKA and from this point measure the medial and lateral laxity of varus and valgus knees in maximum extension, 20 and 90° of flexion prior to TKA. Methods: We conducted an observational cohort study. During surgery, the lower limb was manipulated using comp

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Tomite, Takenori, Hidetomo Saito, Toshiaki Aizawa, Hiroaki Kijima, Naohisa Miyakoshi, and Yoichi Shimada. "Gait Analysis of Conventional Total Knee Arthroplasty and Bicruciate Stabilized Total Knee Arthroplasty Using a Triaxial Accelerometer." Case Reports in Orthopedics 2016 (2016): 1–6. http://dx.doi.org/10.1155/2016/6875821.

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One component of conventional total knee arthroplasty is removal of the anterior cruciate ligament, and the knee after total knee arthroplasty has been said to be a knee with anterior cruciate ligament dysfunction. Bicruciate stabilized total knee arthroplasty is believed to reproduce anterior cruciate ligament function in the implant and provide anterior stability. Conventional total knee arthroplasty was performed on the right knee and bicruciate stabilized total knee arthroplasty was performed on the left knee in the same patient, and a triaxial accelerometer was fitted to both knees after

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