Relevant bibliographies by topics / Femoral fracture fixation

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
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Academic literature on the topic 'Femoral fracture fixation'

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

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Journal articles on the topic "Femoral fracture fixation"

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Milenkovic, Sasa, Milos Stanojlovic, Milorad Mitkovic, and Mile Radenkovic. "Dynamic internal fixation of the periprosthetic femoral fractures after total hip arthroplasty." Acta chirurgica Iugoslavica 51, no. 3 (2004): 93–96. http://dx.doi.org/10.2298/aci0403093m.

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Periprosthetic fractures of the femur after total hip arthroplasty are a big orthopaedic problem, particularly in elderly patients and quite a challenge for orthopaedic surgeons. There is no universal method in treating these fractures. Rigid plates fixation can be limited and aggravated especially in the proximal part of the femur where the endoprosthesis stem does not allow for an undisturbed fixation of both femur cortexes by means of screws. Mitkovic?s dynamic internal fixator is an original implant allowing for an undisturbed fixation of both femur cortexes regardless of the presence of the endoprosthesis stem. Fixation is made possible by means of movable clamps and a convergent possibility to place screws. A dynamic internal fixator can fix all types of periprosthetic femoral fractures. The paper shows the early experience in fixating periprosthetic femoral fractures after total hip arthroplasty in 14 patients, average age 69,7. According to Vancouver classification, 3 patients had the type A fracture, 9 patients had the type B fracture, and 2 patients had the type C fracture. All fractures were fixed by Mitkovic?s dynamic internal fixator. The fracture occurred 2-12 years after primary total hip arthroplasty. The follow- up of the operated patients was 12 months. The method is less invasive than the methods described in books. Mechanical complications are not likely to appear due to the fracture dynamics along the femoral shaft axis, which is made possible by this implant. Our initial experience in femur fracture fixation after hip arthroplasty ahows that it is modern and effective dynamic implant which will contribute significantly to the improving of the treatment of these often very complicated fractures.
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Stojiljkovic, Predrag, Zoran Golubovic, Desimir Mladenovic, Ivan Micic, Sasa Karalejic, and Danilo Stojiljkovic. "External skeletal fixation of femoral shaft fractures in polytrauma patients." Medical review 61, no. 9-10 (2008): 497–502. http://dx.doi.org/10.2298/mpns0810497s.

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Introduction. Polytrauma remains a major social, economic and medicine affliction. A successful surgical treatment of polytrauma patients requires an approach predicated on prioritizing injuries. An isolated femur fractures rarely poses any threat but in association with multiple injuries, this fracture assumes greater significance. The proper management of femur fractures in polytrauma can greatly reduce the mortality and morbidity. Material and methods. We present our results in the treatment of 24 femur shaft fracture in 22 polytrauma patients treated by Mitkovic external fixator in 5 year period (2000-2004) on Orthopeadic and Traumatology Clinic - Clinical Center Nis. The average of patients age was 32.8 years (ranging from 17 to 62). There were 11 (46%) closed and 13 (54%) open fractures. Results. Eighteen fractures were treated by external fixation until union. The remaining six fractures were treated by conversion of the external fixation to internal fixation. Sixteen fractures (88.88%), in which the external fixation was the definitive method of treatment, healed completely. The average healing time was 6.29 (4-9) months. There were three pin-track infections (16.66%), one nonunion (5.55%) and only one deep infection (5.55%). Conclusion. The external fixation by the use of Mitkovic external fixator in the treatment of femur fractures is a safe procedure to achieve temporary rigid stabilisation in polytrauma patients before the subsequent internal fixation (damage control orthopaedics). The external fixation using Mitkovic external fixator can be definitive method of choice in treatment of open and comminutiwe femur fractures in polytrauma patients until union.
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Knobe, Matthias, and Hans-Christoph Pape. "Anchorage strategies in geriatric hip fracture management." Innovative Surgical Sciences 1, no. 2 (December 1, 2016): 73–78. http://dx.doi.org/10.1515/iss-2016-0034.

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AbstractThere is an enormous humanitarian and socioeconomic need to improve the quality and effectiveness of care for patients with hip fracture. To reduce mechanical complications in the osteosynthesis of proximal femoral fractures, improved fixation techniques have been developed including blade or screw-anchor devices, locked minimally invasive or cement augmentation strategies. However, despite numerous innovations and advances regarding implant design and surgical techniques, systemic and mechanical complication rates remain high. Treatment success depends on secure implant fixation in often-osteoporotic bone as well as on patient-specific factors (fracture stability, bone quality, comorbidity, and gender) and surgeon-related factors (experience, correct reduction, and optimal screw placement in the head/neck fragment). For fracture fixation, the anchorage of the lag screw within the femoral head plays a crucial role depending on the implant’s design. Meta-analyses and randomized controlled studies demonstrate that there is a strong trend towards arthroplasty treating geriatric femoral neck fractures. However, for young adults as well as older patients with less compromised bone quality, or in undisplaced fractures, head-preserving therapy is preferred as it is less invasive and associated with good functional results. This review summarizes the evidence for the internal fixation of femoral neck fractures and trochanteric femoral fractures in elderly patients. In addition, biomechanical considerations regarding implant anchorage in the femoral head including rotation, migration, and femoral neck shortening are made. Finally, cement augmentation strategies for hip fracture implants are evaluated critically.
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Kostic, Igor, Milan Mitkovic, and Milorad Mitkovic. "Results of the application of a new method of internal fixation of femoral neck fractures - self-tapping antirotation cannulated screws (SAF)." Acta chirurgica Iugoslavica 60, no. 2 (2013): 71–79. http://dx.doi.org/10.2298/aci1302071k.

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Introduction: Femoral neck fractures are one of the most common fractures primarily the elderly, coupled with a high degree of morbidity and mortality. The treatment is applied a number of methods of internal fixation (multiple cannulated screws available, DHS system, cefalomedullary). At the Department of Orthopedics and Traumatology of Nis developed a new method of fixation of femoral neck fracture, which allows stable fixation of dislocated and nondislocated femoral neck fracture. Self-tapping antirotation fixation (SAF) using two cannulated screws to initial compression fractures intraoperative and postoperative dynamic linear compression of the fracture with early full support to the patient. Matherial and methods: In the period between 2008 to 2012, 53 patients treated for femoral neck fracture in the Clinic for orthopedic and traumatology, Clinical center in Nis, Serbia, by SAF (the self-tapping cannulated screws antirotation; ORTOKON doo Nis). All patients were followed up after surgery in a minimum period of 13 weeks (13-106 weeks). The outcome was evaluated on the basis of clinical and radiological signs of fracture healing and the Harris hip score of functional recovery of the patient. Results: Of the total number of patients (53) treated with this method of fixation, 31 of them were females and 22 males, mean age 52.7 years (28-75 years). The average time of surgery was 36.4 minutes (19-70 minutes). During the postoperative follow-up of all patients (53) operated by this method, six patients were lost in the further postoperative monitoring, so that 47 patients remained for final evaluation. The total incidence of nonunion of femoral neck fracture after surgery this method was 6.4% (three patients). Shortening of the femoral neck after fixation by this method was recorded in 27 cases, and what amounted to an average of 2.8 mm (1, 2 mm in nondislocated to 4.55 with dislocated fracture) and did not affect the functional outcome. During radiographic follow-up was not detected fracture implants. Conclusion: Self-tapping screws cannulated antirotacioni (SAF method) represent a reliable method of fixation of dislocated and nondislocated femoral neck fracture. The main prerequisite for the proper healing of femoral neck fractures with this method is that anatomical fracture reduction is achieved by a closed or open method. This way of fixation allows the early full weight bearing patient operated limb and faster postoperative functional recovery of the fracture healing in optimal time.
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Messner, Mitchell, Alexander Chong, and Bruce Piatt. "Impact of Cigarette Smoking on Re-operation and Revision Surgery after Femoral Neck Fracture Treatment." Kansas Journal of Medicine 13 (August 17, 2020): 195–201. http://dx.doi.org/10.17161/kjm.v13i.14563.

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Introduction. Smokers and nicotine users have a higher risk of femoral neck fracture non-union and prolonged time to fracture union. The impact of smoking resulting in revision surgery after fixation of femoral neck fractures, however, rarely has been studied. The aim of this retrospective study was to review if cigarette smoking had an influence on re-operation and revision after femoral neck fracture treatment. Methods. Three groups of patients (Group 1: active smokers; Group 2: former smokers; and Group 3: non-smokers) who sustained a femoral neck fracture from January 2012 through August 2018 were included. Outcomes investigated included femoral neck fracture type, operative fixation type, fixation failure, and time interval between initial fixation and revision. Results. A total of 1,452 subjects were identified (Group 1: 165 subjects; Group 2: 507 subjects; and Group 3: 780 subjects). In the male population, Groups 1 and 2 had higher rates of femoral neck fracture than Group 3. Twelve cases required revisions (Group 1: three cases (6%); Group 2: two cases (2%); Group 3: seven cases (4%)), with all but one revision within the first year following initial fixation. Group 1 patients tended to be younger than the other two groups. Conclusion. Smoking has a positive association with the risk of femoral neck fracture amongst active and former male smokers. This study concluded that active smokers have a higher risk of non-union compared with non-smokers or former smokers. Smoking history, especially heavy or long-term, should play a role in deciding which fixation construct type to use for femoral neck fractures.
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Samsami, Shabnam, Peter Augat, and Gholamreza Rouhi. "Stability of femoral neck fracture fixation: A finite element analysis." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 233, no. 9 (June 15, 2019): 892–900. http://dx.doi.org/10.1177/0954411919856138.

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Femoral neck fractures represent a relatively uncommon injury in the non-elderly population often resulting from high-energy trauma. Clinical outcome in these patients can be improved by optimizing surgical procedures and selecting appropriate fixation methods. The aim of this study was to develop a numerical fracture model to investigate the influence of critical mechanical factors on the stability of fixation methods for femoral neck fractures. The mechanical stability of fracture fixation was assessed through employing finite element models and simulating progressive consolidation of the fracture for a vertical femoral neck fracture (i.e. Pauwels type III in which the angle between the fracture line and the horizontal plane is greater than 70°). Mechanical performance was compared among three different fixation methods (cannulated screws, dynamic hip screw with de-rotational screw, and proximal femoral locking plate). Axial femoral head displacement varied from 2.3 mm for cannulated screws to 1.12 mm for proximal femoral locking plate, although dynamic hip screw with de-rotational screw indicated a value of 0.94 mm. Considering a consolidated fracture and full weight-bearing load case, average displacements of fracture fragments were obtained of about 1.5, 3 and 70 µm for dynamic hip screw with de-rotational screw, proximal femoral locking plate and cannulated screws methods, respectively. In terms of interfragmentary movements at the fracture site, outcomes of this study demonstrated that, in agreement with our previous experimental research, the dynamic hip screw with de-rotational screw implant is a more effective choice than cannulated screws and proximal femoral locking plate techniques for vertical femoral neck fractures in young patients. Thus, one may conclude that the use of dynamic hip screw with de-rotational screw, particularly during the early stages of bone healing, could provide suitable mechanical environments that facilitate direct bone formation and shorter healing times.
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Zivanovic, Dragoljub, Zoran Radovanovic, Andjelka Slavkovic, and Zoran Marjanovic. "Internal fixator "Mitkovic" in the treatment of fractures of femoral shaft: A possible solution for fractures in heavier children and adolescents." Acta chirurgica Iugoslavica 62, no. 1 (2015): 45–47. http://dx.doi.org/10.2298/aci1501045z.

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Background: Management of femoral shaft fractures in older and heavier children and adolescents is still challenging and controversial and includes several modalities of fixation. Aim of this study was to analyze single center experience in application of selfdynamisable internal fixator Mitkovic (SIF) for the treatment of fractures of femoral shaft in children and adolescents. Methods: Retrospective analysis of data of pediatric and adolescent patients treated for diaphyseal fracture in single center has been conducted. Results: Eleven patients, with 12 femoral shaft fractures were treated in ten-year-period with internal fixator ?Mitkovic?. Time to fracture healing ranged from 4-12 weeks (average 8.9 weeks). All fractures healed without complications. No rotational or angular mall-alignment was noticed. No external cast immobilization was applied in any patient. Conclusion: Selfdynamisable internal fixator Mitkovic may be considered as viable option for treatment of femoral fractures in older/heavier children and adolescents particularly with unstable fracture patterns.
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Erwin, Erwin, Deni Noviana, Dany Umbu, and Tri Isyani Tungga Dewi. "Management Femoral Fracture in Cats using Intramedullary Pin and Wires Fixation." International Journal of Tropical Veterinary and Biomedical Research 3, no. 2 (November 17, 2018): 32–35. http://dx.doi.org/10.21157/ijtvbr.v3i2.12333.

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On April 2016, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Bogor Agricultural University (VTH FKH IPB) received 4 cases of femoral fractures in cats caused by trauma. Two cats suffered oblique diaphysis fracture femoral, one cat suffered comminuted diaphysis fracture femoral, and one cat suffered epiphyseal fracture femoral (column femoral and trochanter major). All cats were treated by open surgery using intramedullary pins (Steinmann) and cerclage wires (Kirschner). Fracture recovery went without complication and all cats were able to move their feet one week after surgery.
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Nuñez, Jorge H., Jordi Teixidor, Felipe Borim, Vicente Molero, and Jordi Tomas. "Outcomes of Subcapital Femoral Fracture after a Fixation of an Intertrochanteric Fracture with a Proximal Femoral Nail: Case Report." Case Reports in Orthopedic Research 4, no. 1 (April 8, 2021): 56–61. http://dx.doi.org/10.1159/000512075.

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Proximal femoral fractures are a common injury that represents an important cause of hospitalization, morbidity, and mortality in elderly patients. Subcapital femoral neck fracture after fixation of an intertrochanteric fracture with a proximal femoral nail is an extremely rare complication. However, because of the large and steadily increase in the number of patients undergoing to proximal femoral nail fixation in recent years, we believe that the number of these cases could increase over time. We present a 78-year-old woman with a subcapital femoral fracture 11 months after a fixation of intertrochanteric fracture with a proximal femoral nail in the same hip. Five years of follow-up was presented. Also through our case report a review of literature of these rare cases was done, trying to evaluate the associated risk factors, the difficulties in their treatment and the final follow-up of these patients.
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Petrie, J., A. Sassoon, and G. J. Haidukewych. "When femoral fracture fixation fails." Bone & Joint Journal 95-B, no. 11_Supple_A (November 2013): 7–10. http://dx.doi.org/10.1302/0301-620x.95b11.32896.

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Dissertations / Theses on the topic "Femoral fracture fixation"

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Angadi, Darshan Srishail. "Biomechanical analysis of femoral fracture fixation using the expert adolescent lateral femoral nail system." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7976/.

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Femoral fracture in adolescents is a severe injury. Recent studies of intramedullary nail fixation with rigid titanium alloy helical nail viz. Expert adolescent lateral femoral nail (ALFN) have reported good results. However, there is no in vitro biomechanical data available on this nail in the literature. Experimental testing and finite element analysis (FEA) were used to establish the stiffness parameters of small composite femurs with simulated fractures stabilised using ALFN. In comparison to intact femur, construct stiffness ranged from maximum (114%) to minimum (20%) for healed fracture and segmental fracture, respectively. Simulation testing in SolidWorksTM was performed with validated FEA model to evaluate the effect of clinical and implant factors. Maximum predicted stress in the distal interlocking screw remained in an acceptable range (160.25 - 188.51 MPa) irrespective of the level of femoral shaft fracture with a relative decrease in stress values as the fracture callus healed over a 16 week period. The relative angle between the ALFN and proximal interlocking screw and implant material were two significant factors influencing stress at the interlocking screw and nail interface. In conclusion, a rigid helical titanium alloy femoral intramedullary nail can perform satisfactorily under physiological loading conditions experienced in the perioperative period.
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Stankewich, Charles J. "The hip fracture epidemic : prevention and treatment strategies /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/8088.

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Etchels, Lee William. "Optimisation of fixation methods For Vancouver Type B2 And B3 periprosthetic femoral fracture treatment." Thesis, University of Leeds, 2014. http://etheses.whiterose.ac.uk/9311/.

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Periprosthetic femoral fractures (PFF) are a complication associated with total hip arthroplasty patients that can be both traumatic and challenging to treat. With the increasing age of the population and increasing prevalence of hip replacement surgery periprosthetic femoral fractures are expected to occur more frequently in the future. The most common type of PFF is the Vancouver Type B fracture that occurs near the tip of the original prosthesis. These fractures can be complicated further by loosening of the primary femoral stem (Type B2 fractures) and poor bone stock (Type B3 fractures). Clinical failures and unclear optimal treatment recommendations for many fractures suggest that further investigation is required. This study mechanically tested experimental specimens representing the cemented long stem revision treatment of a Type B2 PFF at a range of loading orientations to evaluate their biomechanical response. From these specimens the axial stiffness, medial axial strain, distal lateral axial strain, and relative fracture movement were recorded under semi-physiological loading. These experimental results were also used to validate computational, finite element (FE), models of long stem PFF treatment. The computational models were shown to achieve reasonable agreement with the experimental data, such that they could be used to investigate a wider range of clinical scenarios. The FE models were then used to compare the relative effects of different cement mantle geometries, fracture location, fracture bridging distance, fracture angle, revision femoral stem length and osteoporosis. The specific location and angle of the fracture appeared to have an effect on the bending response of the femur and the optimal treatment. Long stem revision treatment however seemed to be suitable for achieving stability around an unstable fracture and it may be possible to counter-act the increased risk of fixation failure in osteoporotic patients by selecting a longer bridging distance.
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Johansson, Torsten. "Displaced Femoral Neck Fractures : A prospective randomized study of clinical outcome, nutrition and costs." Doctoral thesis, Linköping : Univ, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5233.

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Blomfeldt, Richard. "Surgical treatment of patients with displaced femoral neck fractures : aspects on outcome and selection criteria /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-801-0/.

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Skoglund, Björn. "Following the mevalonate pathway to bone heal alley /." Linköping : Department of Clinical and Experimental Medicine, Materials in Medicine, Section of Orthopaedics and Sports Medicine, Faculty of Health Sciences, Linköping University, 2007. http://www.bibl.liu.se/liupubl/disp/disp2007/med1033s.pdf.

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Futch, Lydia A. "Use of the 15-second lateral step-up for comparison of hip function between two surgical approaches for intramedullary nailing of femur fractures." Thesis, Birmingham, Ala. : University of Alabama at Birmingham, 2007. http://www.mhsl.uab.edu/dt/2007p/futch.pdf.

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Gbur, Janet L. "Biomechanical Evaluation of Composite Bone Following Removal of Proximal Femoral Fixation Hardware." Youngstown State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1314020294.

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Cavalcante, Julio CÃsar Chagas e. "Efeitos do ibandronato de sÃdio na consolidaÃÃo de fraturas femorais de ratos tratados com haste intramedular." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9044.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior
The Ibandronate sodium is a drug used for clinical treatment of osteoporosis and for anti-catabolic action and cause osteoclast apoptosis, an important cell responsible for bone remodeling, it was hypothesized an effect on fractures in the consolidation phase of callus remodeling.The aim of this study was to evaluate the effect of ibandronate sodium in the fracture of femurs of rats subjected to intramedullary fixation. This study used 48 adult male rats, Wistar, with the average weight of 336.63 g. All animals underwent surgery for intramedullary osteosynthesis of the right femur and subsequently performed a standardized fracture. They were divided into two groups: the ibandronate, which was administered a single dose of 15mg/kg by gavage and the control group was administered a single dose of 1.0 ml of 0.9% saline by gavage also on the same day of the procedure surgery. At 7, 14, 28 and 42 days postoperatively six animals from each group were euthanized and the femurs were subjected to X-ray study to analyze the optical density and area of callus and histological study, using samples stained with picrosirius red and analyzed under polarized light, to quantify the density of collagen type I and type III in the cortical region near the fracture and callus. The radiographs showed that the area of the callus showed no statistically significant differences between groups control and ibandronate, but in the intragroup analysis 28 and 42, the callus was significantly higher on day 7 in both groups. The optical density of intergroup evaluation showed that ibandronate group at day 42, showed a higher density than the control group. In the study of collagen in the callus, the density of type I collagen seen in the ibandronate group was higher than that observed in the control group on days 7 and 14, since the density of type III collagen found in the ibandronate group was lower than in the 7 days Control group. In the study of collagen in the cortex, collagen type I in the ibandronate group was significantly greater on day 7 than the control group and type III collagen in the ibandronate group was lower than the Control group. The results are consistent enough to say that this drug has an effect on bone fracture healing by increasing the density of type I collagen in the early stages of consolidation.
O Ibandronato de sÃdio à um medicamento utilizado para o tratamento clÃnico da osteoporose e por ter aÃÃo anticatabÃlica e causar apoptose no osteoclasto, uma importante cÃlula responsÃvel pela remodelaÃÃo Ãssea, foi hipotetizado um efeito na consolidaÃÃo fraturas na fase de remodelaÃÃo do calo Ãsseo. O objetivo deste estudo foi avaliar o efeito do ibandronato de sÃdio na consolidaÃÃo das fraturas de fÃmures de ratos submetidos à osteossÃntese intramedular. Neste estudo foram utilizados 48 ratos machos, adultos, da linhagem Wistar, com o peso mÃdio de 336,63g. Todos os animais foram submetidos a procedimento cirÃrgico para osteossÃntese intramedular do fÃmur direito e posteriormente realizado uma fratura padronizada. Eles foram divididos em dois grupos: o grupo Ibandronato, em que foi administrada dose Ãnica de 15mg/Kg por gavagem e o grupo controle foi administrado dose Ãnica de 1,0ml de soluÃÃo fisiolÃgica 0,9% tambÃm por gavagem, no mesmo dia do procedimento cirÃrgico. No 7Â, 14Â, 28 e 42 dia de pÃs-operatÃrio seis animais de cada grupo eram eutanasiados e os fÃmures foram submetidos a estudo radiogrÃfico para analisar a densidade Ãptica e Ãrea do calo Ãsseo e estudo histolÃgico, utilizando amostras coradas com picrosirius red e analisadas sob a luz polarizada, para quantificar a densidade de colÃgeno tipo I e tipo III na regiÃo cortical prÃxima a fratura e no calo Ãsseo. A anÃlise das radiografias mostrou que a Ãrea do calo Ãsseo nÃo apresentava diferenÃas estatisticamente significantes entre os grupos Controle e Ibandronato, mas que na anÃlise intragrupo os dias 28 e 42 o calo era significantemente maior que no dia 7, em ambos os grupos. A densidade Ãptica na avaliaÃÃo intergrupos mostrou que o grupo Ibandronato, no 42 dia, apresentava uma maior densidade que o grupo controle. No estudo do colÃgeno no calo Ãsseo, a densidade do colÃgeno tipo I verificada no grupo Ibandronato foi maior que a observada no grupo Controle nos dias 7 e 14, jà a densidade de colÃgeno tipo III verificada no grupo Ibandronato foi menor no dia 7 que no grupo Controle. No estudo do colÃgeno da cortical prÃxima ao foco de fratura, o colÃgeno tipo I no grupo Ibandronato foi significantemente maior no dia 7 que o grupo controle e o colÃgeno tipo III no grupo Ibandronato foi menor que o grupo Controle. Os resultados encontrados sÃo consistentes o suficiente para afirmar que este fÃrmaco exerce efeito na consolidaÃÃo de fraturas Ãsseas aumentando a densidade do colÃgeno tipo I nas fases iniciais da consolidaÃÃo.
O Ibandronato de sÃdio à um medicamento utilizado para o tratamento clÃnico da osteoporose e por ter aÃÃo anticatabÃlica e causar apoptose no osteoclasto, uma importante cÃlula responsÃvel pela remodelaÃÃo Ãssea, foi hipotetizado um efeito na consolidaÃÃo fraturas na fase de remodelaÃÃo do calo Ãsseo. O objetivo deste estudo foi avaliar o efeito do ibandronato de sÃdio na consolidaÃÃo das fraturas de fÃmures de ratos submetidos à osteossÃntese intramedular. Neste estudo foram utilizados 48 ratos machos, adultos, da linhagem Wistar, com o peso mÃdio de 336,63g. Todos os animais foram submetidos a procedimento cirÃrgico para osteossÃntese intramedular do fÃmur direito e posteriormente realizado uma fratura padronizada. Eles foram divididos em dois grupos: o grupo Ibandronato, em que foi administrada dose Ãnica de 15mg/Kg por gavagem e o grupo controle foi administrado dose Ãnica de 1,0ml de soluÃÃo fisiolÃgica 0,9% tambÃm por gavagem, no mesmo dia do procedimento cirÃrgico. No 7Â, 14Â, 28 e 42 dia de pÃs-operatÃrio seis animais de cada grupo eram eutanasiados e os fÃmures foram submetidos a estudo radiogrÃfico para analisar a densidade Ãptica e Ãrea do calo Ãsseo e estudo histolÃgico, utilizando amostras coradas com picrosirius red e analisadas sob a luz polarizada, para quantificar a densidade de colÃgeno tipo I e tipo III na regiÃo cortical prÃxima a fratura e no calo Ãsseo. A anÃlise das radiografias mostrou que a Ãrea do calo Ãsseo nÃo apresentava diferenÃas estatisticamente significantes entre os grupos Controle e Ibandronato, mas que na anÃlise intragrupo os dias 28 e 42 o calo era significantemente maior que no dia 7, em ambos os grupos. A densidade Ãptica na avaliaÃÃo intergrupos mostrou que o grupo Ibandronato, no 42 dia, apresentava uma maior densidade que o grupo controle. No estudo do colÃgeno no calo Ãsseo, a densidade do colÃgeno tipo I verificada no grupo Ibandronato foi maior que a observada no grupo Controle nos dias 7 e 14, jà a densidade de colÃgeno tipo III verificada no grupo Ibandronato foi menor no dia 7 que no grupo Controle. No estudo do colÃgeno da cortical prÃxima ao foco de fratura, o colÃgeno tipo I no grupo Ibandronato foi significantemente maior no dia 7 que o grupo controle e o colÃgeno tipo III no grupo Ibandronato foi menor que o grupo Controle. Os resultados encontrados sÃo consistentes o suficiente para afirmar que este fÃrmaco exerce efeito na consolidaÃÃo de fraturas Ãsseas aumentando a densidade do colÃgeno tipo I nas fases iniciais da consolidaÃÃo.
The Ibandronate sodium is a drug used for clinical treatment of osteoporosis and for anti-catabolic action and cause osteoclast apoptosis, an important cell responsible for bone remodeling, it was hypothesized an effect on fractures in the consolidation phase of callus remodeling.The aim of this study was to evaluate the effect of ibandronate sodium in the fracture of femurs of rats subjected to intramedullary fixation. This study used 48 adult male rats, Wistar, with the average weight of 336.63 g. All animals underwent surgery for intramedullary osteosynthesis of the right femur and subsequently performed a standardized fracture. They were divided into two groups: the ibandronate, which was administered a single dose of 15mg/kg by gavage and the control group was administered a single dose of 1.0 ml of 0.9% saline by gavage also on the same day of the procedure surgery. At 7, 14, 28 and 42 days postoperatively six animals from each group were euthanized and the femurs were subjected to X-ray study to analyze the optical density and area of callus and histological study, using samples stained with picrosirius red and analyzed under polarized light, to quantify the density of collagen type I and type III in the cortical region near the fracture and callus. The radiographs showed that the area of the callus showed no statistically significant differences between groups control and ibandronate, but in the intragroup analysis 28 and 42, the callus was significantly higher on day 7 in both groups. The optical density of intergroup evaluation showed that ibandronate group at day 42, showed a higher density than the control group. In the study of collagen in the callus, the density of type I collagen seen in the ibandronate group was higher than that observed in the control group on days 7 and 14, since the density of type III collagen found in the ibandronate group was lower than in the 7 days Control group. In the study of collagen in the cortex, collagen type I in the ibandronate group was significantly greater on day 7 than the control group and type III collagen in the ibandronate group was lower than the Control group. The results are consistent enough to say that this drug has an effect on bone fracture healing by increasing the density of type I collagen in the early stages of consolidation.
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Arsiwala, Ali, and Vatsal Shukla. "FE Modelling Of Two Femur Fixation Implants." Thesis, Linköpings universitet, Mekanik och hållfasthetslära, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-180127.

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In the pool of women over the age of 50, the likeliness of an atypical fracture increase drastically, partly due to osteoporosis. With a pre-existing implant in the femur bone, inserted due to a prior atypical fracture, treating a later femoral neck fracture is complex and risky. Currently, a fractured femoral diaphysis is treated using an intermedullary nail which is fixed to the femur bone either through the femoral neck (Recon locking method)or through the lesser trochanter (Antegrade locking method). In a study conducted by Bögl et.al. JBJS102.17 (2020), pp. 1486-1494, it is found that the fixation of the intermedullary nail through the femoral neck reduces the risk of future femoral neck fractures. The study also states that more than 50% of the patients with atypical femoral fractures related to bisphosphonate treatment for osteoporosis (within the study sub population) were treated with the Antegrade locking implant. There does not exist much literature that reasons as to how one locking method is showing lesser risk of re-operation as compared to the other. The purpose of this study is to look into the effects these two implants have on the femur bone using the Finite Element Analysis (FEA). The study presented is aimed at comparing the results of the finite element analysis for the Recon implant model (Recon model) and Antegrade implant model (Antegrade model). The femur model without the implants (native bone model) is used to verify material behavior, while the other two are used for the comparison to study the stress-strain distribution, primarily in the neck region. This is a patient specific study, hence the femur bone model is generated using patient Computed Tomography (CT) scans. The bone model was assigned a heterogeneous isotropic material property derived from patient CT data. The finite element (FE) model of the bone was meshed using Hypermesh. The peak loading condition including the muscle forces were applied on the native bone model along with the Recon and the Antegrademodel. While the loading conditions during normal walking cycle were only applied to theRecon and the Antegrade model to compare the impacts of the two implant types. Both loading conditions were simulated by fixing the distal condyle region of the bone. The analysis results show that the Antegrade implant experiences much higher stresses and strains in the neck region as compared to Recon implant. Also, the presence of the intermedullary nail through the femur diaphysis helps to distribute the stresses and strains in the anterior distal diaphysis region of the bone. For the case of no implants, the model showed strains and stresses in the lateral distal region of femoral diaphysis.
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Books on the topic "Femoral fracture fixation"

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An atlas of closed nailing of the tibia and femur. New York: Springer-Verlag, 1991.

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An atlas of closed nailing of the tibia and femur. London: Martin Dunitz, 1991.

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(Matthias), Rapp M., and SpringerLink (Online service), eds. The Double Dynamic Martin Screw (DMS): Adjustable Implant System for Proximal and Distal Femur Fractures. Heidelberg: Steinkopff, 2008.

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Manninger, Jenő, Ulrich Bosch, Péter Cserháti, Károly Fekete, and György Kazár, eds. Internal fixation of femoral neck fractures. Vienna: Springer Vienna, 2007. http://dx.doi.org/10.1007/978-3-211-68585-3.

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Parker, Martyn J. Femoral neck fractures. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199550647.003.012051.

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♦ Intracapsular fractures are classified by division into those fractures that are essentially undisplaced and those that are displaced♦ Undisplaced fractures are generally treated by reduction and internal fixation♦ Displaced fractures may be treated by reduction and internal fixation but this incurs the potential complications of re-displacement of the fracture, non-union, and avascular necrosis♦ Displaced fractures in the elderly are generally treated with a replacement arthroplasty.
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(Editor), Jenö Manninger, Ulrich Bosch (Editor), Péter Cserháti (Editor), Karoly Fekete (Editor), and György Kazar (Editor), eds. Osteosynthese der Schenkelhalsfraktur: Ein Bildatlas. Springer, 2004.

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Ulrich, Bosch Jen Manninger Peter Cserh Ti. Internal Fixation of Femoral Neck Fractures. Springer, 2008.

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Gray, Andrew C. Orthopaedic approach to the multiply injured patient. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199550647.003.012003.

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♦ Major trauma results in a systemic stress response proportional to both the degree of initial injury (1st hit) and the subsequent surgical treatment (2nd hit).♦ The key physiological processes of hypoxia, hypovolaemia, metabolic acidosis, fat embolism, coagulation and inflammation operate in synergy during the days after injury/surgery and their effective management determines prognosis.♦ The optimal timing and method of long bone fracture fixation after major trauma remains controversial. Two divergent views exist between definitive early intramedullary fixation and initial external fixation with delayed conversion to an intramedullary nail once the patient’s condition has been better stabilised.♦ There is agreement that the initial skeletal stabilisation should not be delayed and that the degree of initial injury has a more direct correlation with outcome and the development of subsequent systemic complications rather than the method of long bone fracture stabilisation.♦ Trauma patients can be screened to identify those more ‘at risk’ of developing systemic complications such as respiratory insufficiency. Specific risk factors include: A high injury severity score; the presence of a femoral fracture; the combination of blunt abdominal or thoracic injury combined with an extremity fracture; physiological compromise on admission and uncorrected metabolic acidosis prior to surgery.♦ The serum concentration of pro-inflammatory cytokine interleukin (IL) 6 may offer an accurate method of quantifying the degree of initial injury and the response to surgery.♦ The effective management of the polytraumatised patient involves a team approach and effective communication with allied specialties and theatre staff. A proper hierarchy of the injuries sustained can then be compiled and an effective surgical strategy made.
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Internal fixation of femoral neck fractures: An Atlas. Springer, 2007.

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Bosch, Ulrich, Jenó Manninger, Peter Cserháti, Károly Fekete, and György Kazár. Internal fixation of femoral neck fractures: An Atlas. Springer, 2016.

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Book chapters on the topic "Femoral fracture fixation"

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Johal, Herman, Daniel Axelrod, and Mohit Bhandari. "Femoral Head Fractures." In Fracture Reduction and Fixation Techniques, 183–91. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24608-2_13.

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Ntourantonis, Dimitris I., Zinon T. Kokkalis, and Elias Panagiotopoulos. "Subtrochanteric Femoral Fractures." In Fracture Reduction and Fixation Techniques, 215–23. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24608-2_16.

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Tatani, Irini, Antonios Kouzelis, and Elias Panagiotopoulos. "Femoral Shaft Fractures." In Fracture Reduction and Fixation Techniques, 225–34. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24608-2_17.

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Kojima, Kodi E., and Jorge S. Silva. "Intracapsular Femoral Neck Fractures." In Fracture Reduction and Fixation Techniques, 193–204. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24608-2_14.

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Nollin, Zachary, and Brent Norris. "Complex Bifocal Femoral Fractures." In Fracture Reduction and Fixation Techniques, 235–51. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24608-2_18.

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Chellam, William B., and Peter V. Giannoudis. "Supracondylar/Intracondylar Distal Femoral Fractures." In Fracture Reduction and Fixation Techniques, 253–66. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24608-2_19.

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Johnson, Joey P. "Distal Femoral Fractures (Hoffa/Periprosthetic)." In Fracture Reduction and Fixation Techniques, 267–75. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24608-2_20.

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Giannoudis, Peter V., and Erika A. Baña. "Extracapsular Proximal Femoral Fractures (Pertrochanteric Intertrochanteric and Fractures with Reverse Obliquity)." In Fracture Reduction and Fixation Techniques, 205–14. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24608-2_15.

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Mollano, Anthony V. "Femoral Neck Fracture Closed Reduction and Percutaneous Multiple Screw Fixation." In Operative Dictations in Orthopedic Surgery, 109–11. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-7479-1_30.

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Williams, Joel C., Felipe S. Bessa, and E. Bailey Terhune. "Surgical Technique: Surgical Fixation of Nondisplaced Femoral Neck Stress Fracture." In Hip Arthroscopy and Hip Joint Preservation Surgery, 1–8. New York, NY: Springer New York, 2021. http://dx.doi.org/10.1007/978-1-4614-7321-3_180-1.

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Conference papers on the topic "Femoral fracture fixation"

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Assari, Soroush, Alan Kaufmann, Kurosh Darvish, Saqib Rehman, Jung Park, Jonathan Haw, and Fayez Safadi. "Supracondylar femoral fracture fixation: Locked plating versus retrograde nailing." In 2012 38th Annual Northeast Bioengineering Conference (NEBEC). IEEE, 2012. http://dx.doi.org/10.1109/nebc.2012.6207034.

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Yang, Yan, Lei Hu, and Junchen Wang. "A fluoroscopy-based navigation system for fixation of femoral neck fracture." In 2011 4th International Conference on Biomedical Engineering and Informatics (BMEI). IEEE, 2011. http://dx.doi.org/10.1109/bmei.2011.6098336.

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Schenk, Andrew T., Kevin S. Horowitz, Paul F. Bucchi, Patrick J. Wiater, and Constantine K. Demetropoulos. "Mathematical Optimization of Mechanical Testing to Study Periprosthetic Fracture Following Femoral Trochanteric Nail Fixation." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192394.

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Understanding the biomechanics of periprosthetic fractures is especially important in today’s aging population. As the prevalence of osteoporosis continues to climb, fracture risk, especially in proximity of an orthopaedic implant, is of great concern. In a study designed to investigate the mechanism of such fractures, the authors have chosen to test human cadaveric specimens implanted with short Synthes Titanium Trochanteric Fixation Nails. However, the exact loading conditions that elicit fracture are not known.
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Eap, Laurent, and A. Sherif El-Gizawy. "Study on the Effects of Femoral Muscle Forces on Performance of Internal Fixation Devices Utilizing a Simulation Based Approach." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64926.

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Fractures of the distal femur are severe traumatic injuries that are treated with the utilization of internal fixation devices. Current preclinical device designs have primarily been investigated without observance of femoral muscle group effects — in addition to joint hip reaction forces — and irregular geometry of the human femora. This has led to a need to optimize the performance and fit of internal fixation devices to produce maximal reliability and structural integrity. The present study utilizes a systematic design approach that employs computer-aided modeling, robust design methodology, finite element methods, and optimization processes for a femoral locking plate system. In doing so, a computer-aided model was constructed to illustrate a distal femoral fracture fixation system. Femoral muscle force directions and magnitudes associated with a normal walking gait cycle were inputted into the system to simulate realistic loading conditions. In conjunction with finite element methods, the model was used to assess stress and strain distributions along the femur, femoral plate, and screws. Subsequently, optimization processes were then employed to assess the effects of varying device geometric parameters and bone topology on the bone-implant stress distributions and overall device design. The proposed simulation-based optimization process was able to yield a more accurate representation of the biomechanics within the bone-implant interaction by taking into consideration the substantial effects of femoral muscle groups. In doing so, a robust device design is developed which improves overall performance via minimizing weight and maximizing overall factor of safety.
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Wu, H. F., K. A. Lai, M. T. Huang, H. S. Chen, K. C. Chung, and F. S. Yang. "The biomechanical analysis for DHS and wire fixation osteoporotic and unstable femoral fracture." In 2011 37th Annual Northeast Bioengineering Conference (NEBEC). IEEE, 2011. http://dx.doi.org/10.1109/nebc.2011.5778644.

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Salas, Christina, Deana Mercer, Thomas A. DeCoster, and Mahmoud M. Reda Taha. "Experimental and Probabilistic Finite Element Analysis of Distal Femoral Fractures: A Comparison of Locking Plate Versus Intramedullary Nail Fixation." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19303.

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In the treatment of unstable, distal, metaphyseal femoral fractures, surgeons have multiple implant options for fixation. Biomechanical studies of intramedullary nailing systems and locking plates have shown that both systems achieve stable fixation of the fracture to allow healing.1–3 These systems are indicated for comminuted fractures, non-unions, and osteoporotic bone where distal femur fractures are associated with a 20% mortality rate in elderly individuals.4 Though capable of achieving stable fixation, both locking and non-locking plates have been associated with periprosthetic fractures in osteoporotic and normal bone.4–6 A recent clinical study reported a 2.6% incidence of periprosthetic fractures at the locking plate end.7
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Wang, Monan, Hongshu Guo, and Zhang Meng. "The study of the fixation for femoral neck fracture based on finite element method." In Mechanical Engineering and Information Technology (EMEIT). IEEE, 2011. http://dx.doi.org/10.1109/emeit.2011.6023469.

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Xia, Hong-gang, and Bing-zhi Chen. "Experimental and Numerical Investigation on the Bio-Mechanical Performance of Femoral Trochanteric Fracture Fixation." In BIBE2020: The Fourth International Conference on Biological Information and Biomedical Engineering. New York, NY, USA: ACM, 2020. http://dx.doi.org/10.1145/3403782.3403815.

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Arnone, Joshua C., A. Sherif El-Gizawy, Brett D. Crist, Gregory J. Della Rocca, and Carol V. Ward. "An Integrated Computer-Aided Engineering Approach for Parametric Investigation of Locked Plating Systems Design." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39822.

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Locked plating systems have emerged in recent years as effective devices for treating and stabilizing femoral fractures. Nevertheless, clinical failures due to plate yielding and fracture have been observed — particularly with distal femoral plates. The majority of failures are attributed to improper placement, fixation techniques, or plate selection, and to premature weight-bearing by the patient. While the mechanical function of plating systems is well-understood, the optimum design parameters that lead to efficient stability and fracture healing, such as plate geometry, material properties, and fixation techniques (e.g. screw configuration and the use of hole inserts), are unknown. The present paper presents an integrated computer-aided engineering (CAE) approach combining digital imaging, solid modeling, robust design methodology, and finite element analysis in order to conduct a parametric investigation of the design of locked plating systems. The present study allows for understanding the contributions of different design parameters on the biomechanics and reliability of these systems. Furthermore, the present approach will lead to exploration of optimum design parameters that will result in robust system performance. Three-dimensional surface models of cortical and cancellous femoral bone were derived via digital CT image processing techniques and a medical imaging analysis program. A nine orthogonal array matrix simulation (L9) was conducted using finite element methods to study the effects of the various design parameters on plate performance. The technique was demonstrated on a case study using a Smith & Nephew PERI-LOC distal femur locking plate where the plate thickness and material, the use of screw hole inserts, and the use of an oblique screw angled distally and medially were the design parameters. After creating a distal fracture with bone loss and stabilizing the femur with the plating system, the impact force due to walking was simulated on each of the nine fracture models. Results showed that increasing the plate’s thickness, using titanium alloy for fabrication, and using screw hole inserts in proximity to the fracture site will maximize the overall factor of safety.
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Lin, Shi-Wei, and Jaw-Lin Wang. "Anatomical Reduction Is Not Necessary in Treating Non-Porotic Unstable Intertrochanteric Fracture: A Biomechanical Study of Porcine Model." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42910.

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Intertrochanteric fracture occurred more than 200,000 cases each year in the United States, with mortality rate up to 20 percents. Evans classified the intertrochanteric fracture pattern to stable and unstable group. Most of the complications occurred in the unstable group. It is speculated that in the unstable intertrochanteric fracture, the lag screw migrates easily into the porotic femur head and than causing fixation failure. So the treatment of porotic unstable femoral intertrochanteric fracture depends on the bone quality, severity of comminution, anatomical reduction and methods of fixation. An abundant of studies had been focused on how to reinforce the porotic unstable intertrochanteric fracture including osteotomies, cement augmentation, anatomical reduction, and different implant applications. Among the many techniques, the anatomical reduction using cerclage wiring was widely used to enhance the stability of osteoporotic fractured femur. However, in the young adult, the application of cerclage wiring is controversial. The current study compares the mechanical properties of two anatomical reduction techniques of unstable intertrochanteric fracture reconstructed by a compression hip screw. Four porcine femurs of 10 months-old were used to simulate the non-porotic human bone. The specimens were stripped of all soft tissues. Each femur was prepared with four holes for dynamic hip screws following the standard surgical procedure. The anatomical reduction was achieved by a cerclage wiring and without cerclage wiring. The results reveal that in the non-porotic porcine model, there is no statistically difference in stiffness, plate strain and medial bone strain per load. No matter the unstable intertrochanteric fracture is reduced with cerclage wire or not. The non-porotic unstable intertrochanteric fracture anatomical reduction is not necessary if protective weight bearing is obeyed. However, whether the cerclage wiring is necessary or not for the osteoporotic unstable femur fracture needs further study.
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Reports on the topic "Femoral fracture fixation"

1

Al Shoubaki, Akram. AO Fixation of a Distal Femoral Intra-articular Fracture. Touch Surgery Publications, November 2019. http://dx.doi.org/10.18556/touchsurgery/2016.s0171.

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Al Shoubaki, Akram. AO Fixation of a Distal Femoral Intra-articular Fracture. Touch Surgery Simulations, November 2019. http://dx.doi.org/10.18556/touchsurgery/2019.s0171.

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Hessmann, Martin H. AO Femoral shaft fracture - Intramedullary fixation using R/AFN antegrade. Touch Surgery Simulations, 2018. http://dx.doi.org/10.18556/touchsurgery/2018.s0091.

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Touch Surgery. AO Intramedullary Fixation of a Proximal Femoral Fracture Using a TFN-Advanced Nailing System. Touch Surgery Publications, October 2018. http://dx.doi.org/10.18556/touchsurgery/2016.s0148.

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Ji, Qing-hui. Efficacy of four hollow nail rhombic fixation for the treatment of patients with femoral neck fractures: a protocol of systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review Protocols, April 2020. http://dx.doi.org/10.37766/inplasy2020.4.0106.

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AO Intramedullary Fixation of a Proximal Femoral Fracture Using a TFN-Advanced Nailing System. Touch Surgery Simulations, October 2018. http://dx.doi.org/10.18556/touchsurgery/2018.s0148.

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You might also be interested in the extended bibliographies on the topic 'Femoral fracture fixation' for particular source types:
Journal articles Dissertations / Theses
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