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distal femoral fracture

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https://www.readbyqxmd.com/read/28731209/evaluating-atypical-features-of-femur-fractures-how-change-in-radiological-criteria-influenced-incidence-and-demography-of-atypical-femur-fractures-in-a-community-setting
#1
Erin S LeBlanc, A Gabriela Rosales, Dennis M Black, Harry K Genant, Richard M Dell, Darin M Friess, David L Boardman, Douglas C Bauer, Anne de Papp, Arthur C Santora, Eric S Orwoll
Identification of atypical femoral fractures (AFFs) can be challenging. To assist in the radiological assessment, an ASBMR Task Force developed a case definition for AFFs in 2010, revising it in 2013. How the revised definition performs in a community setting compared to the 2010 definition is unknown. We applied the 2013 criteria to 372 femoral fractures that occurred between January 1, 1996, and June 30, 2009, employing two independent expert physician reviewers. We used radiographs that had been categorized in a previous study on the incidence of atypical fractures using 2010 ASMBR criteria (BEAK1)...
July 21, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28723755/comparison-of-free-hand-fluoroscopic-guidance-and-electromagnetic-navigation-in-distal-locking-of-femoral-intramedullary-nails
#2
Bing Han, Zhigang Shi, Yu Fu, Yong Ye, Juehua Jing, Jun Li
BACKGROUND: Although the method has been used widely, one of the greatest challenges for intramedullary nailing is to position the distal locking screw. A new technology, the electromagnetic navigation system, is a radiation-free way to locate the position of the drill bit and provide 3-dimensional real-time feedback of location and orientation of the drill bit relative to the locking holes. The purpose of our study was to evaluate the reliability and efficiency of the free-hand technique compared to the new electromagnetic navigation system...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28722129/bone-strength-estimated-by-micro-finite-element-analysis-%C3%A2%C2%B5fea-is-heritable-and-shares-genetic-predisposition-with-areal-bmd-the-framingham-study
#3
David Karasik, Serkalem Demissie, Darlene Lu, Kerry E Broe, Steven K Boyd, Ching-Ti Liu, Yi-Hsiang Hsu, Mary L Bouxsein, Douglas P Kiel
Genetic factors contribute to the risk of bone fractures, partly because of effects on bone strength. High-resolution peripheral quantitative computed tomography (HR-pQCT) estimates bone strength using micro-finite element analysis (µFEA). The goal of this study was to investigate if the bone failure load estimated by HR-pQCT-based µFEA is heritable and to what extent it shares genetic regulation with areal bone mineral density (aBMD). Bone microarchitecture was measured by HR-pQCT at the ultradistal tibia and ultradistal radius in adults from the Framingham Heart Study (n = 1087, mean age 72 years; 57% women)...
July 19, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28712877/bone-mass-microarchitecture-and-strength-are-influenced-by-race-ethnicity-in-young-adult-men-and-women
#4
Kristin L Popp, Julie M Hughes, Adriana Martinez-Betancourt, Matthew Scott, Victoria Turkington, Signe Caksa, Katelyn I Guerriere, Kathryn E Ackerman, Chun Xu, Ginu Unnikrishnan, Jaques Reifman, Mary L Bouxsein
Lower rates of fracture in both Blacks compared to Whites, and men compared to women are not completely explained by differences in bone mineral density (BMD). Prior evidence suggests that more favorable cortical bone microarchitecture may contribute to reduced fracture rates in older Black compared to White women, however it is not known whether these differences are established in young adulthood or develop during aging. Moreover, prior studies using high-resolution pQCT (HR-pQCT) have reported outcomes from a fixed-scan location, which may confound sex- and race/ethnicity-related differences in bone structure...
July 13, 2017: Bone
https://www.readbyqxmd.com/read/28710534/double-plating-of-intra-articular-multifragmentary-c3-type-distal-femoral-fractures-through-the-anterior-approach
#5
Mohamed A Imam, Ahmed Torieh, Ahmed Matthana
INTRODUCTION: In this prospective case series, we report a mean of 12-month follow-up of the utilization of a dual plating of distal femoral fractures. Our technique included a lateral distal femoral locked plate with a low-contact-locked medial plate and bone graft through an extended medial parapatellar anterior approach for the fixation of C3-type distal femoral fractures. PATIENTS AND METHODS: Sixteen patients (11 males and 5 females) presented with supracondylar femoral fracture type C3, according to Müller long-bone classification system and its revision OA/OTA classification...
July 14, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28669078/the-incidence-of-life-threatening-iatrogenic-vessel-injury-following-closed-or-open-reduction-and-internal-fixation-of-intertrochanteric-femoral-factures
#6
David Segal, Eyal Yaacobi, Niv Marom, Victor Feldman, Elhan Aliev, Ezequiel Palmanovich, Gabriel Bartal, Yaron S Brin
AIM OF THE STUDY: Bleeding due to a vascular injury is a possible life-threatening complication of intertrochanteric femoral fracture internal fixation. Our goals were to find the current incidence of these events, and to describe the reasons, the presentation, and the treatment options. METHOD: We conducted a retrospective record review of 1,469 patients who were operated upon at our institution due to AO31A femoral fractures from 2011 through 2015 and were treated with closed reduction and internal fixation...
July 1, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28669018/revision-knee-arthroplasty-using-a-distal-femoral-replacement-prosthesis-for-periprosthetic-fractures-in-elderly-patients
#7
Ehab Girgis, Christoph McAllen, Jonathan Keenan
PURPOSE: Distal femoral periprosthetic fractures above a total knee replacement in elderly patients are technically challenging to treat. Bone quality is often poor, the fractures comminuted, and post-operative mobilisation is difficult. This study assesses the clinical, radiological and functional outcome of revision knee distal femoral replacement (DFR) in these fractures. METHODS: We identified 14 patients over 70 years of age (70-94) who underwent DFR for periprosthetic fractures above a knee replacement...
July 1, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28663403/-modern-distal-femoral-locking-plates-allow-safe-early-weight-bearing-with-a-high-rate-of-union-and-low-rate-of-failure-five-year-experience-from-a-united-kingdom-major-trauma-centre
#8
W E C Poole, D G G Wilson, H C Guthrie, S F Bellringer, R Freeman, E Guryel, S G Nicol
AIMS: Fractures of the distal femur can be challenging to manage and are on the increase in the elderly osteoporotic population. Management with casting or bracing can unacceptably limit a patient's ability to bear weight, but historically, operative fixation has been associated with a high rate of re-operation. In this study, we describe the outcomes of fixation using modern implants within a strategy of early return to function. PATIENTS AND METHODS: All patients treated at our centre with lateral distal femoral locking plates (LDFLP) between 2009 and 2014 were identified...
July 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28658862/extra-articular-supracondylar-femur-fractures-managed-with-locked-distal-femoral-plate-or-supracondylar-nailing-a-comparative-outcome-study
#9
Sps Gill, Ankit Mittal, Manish Raj, Pulkesh Singh, Jasveer Singh, Santosh Kumar
INTRODUCTION: Despite recent evolution in the operating techniques and surgical implants, debate continues around the choice of implant for management of distal femur fractures. High rates of complications and union difficulties continues to make them a momentous therapeutic challenge. AIM: To compare the outcome of locked compressive plating versus retrograde nailing in the management of extra articular supracondylar femur fractures. MATERIALS AND METHODS: In this randomized prospective study, 42 patients with extra-articular distal femur fractures were segregated into two groups based on internal fixation with distal femoral locking plate (n=22) and retrograde nail (n=20)...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28650942/open-supracondylar-intercondylar-fractures-of-the-femur-treatment-with-taylor-spatial-frame
#10
Francesco Sala, Ahmed M Thabet, Paolo Capitani, Federico Bove, Amr A Abdelgawad, Giovanni Lovisetti
OBJECTIVES: Evaluate the Taylor spatial frame (TSF) for primary and definitive fixation of open supracondylar-intracondylar femoral (SIF) fractures. DESIGN: Retrospective. SETTING: Level I trauma center. PATIENTS: Subset of 20 SIF open fractures treated with TSF extracted from a consecutive series of 80 SIF fractures treated between 2007 and 2013. INTERVENTION: Eighteen (90%) fractures underwent definitive fixation with the TSF; 2 were treated primarily within 24 hours of injury...
June 15, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28648706/total-hip-intraoperative-femur-fracture-do-the-design-enhancements-of-a-second-generation-tapered-wedge-stem-reduce-the-incidence
#11
Nicholas D Colacchio, Claire E Robbins, Mehran S Aghazadeh, Carl T Talmo, James V Bono
BACKGROUND: Intraoperative femur fracture (IFF) is a well-known complication in primary uncemented total hip arthroplasty (THA). Variations in implant instrumentation design and operative technique may influence the risk of IFF. This study investigates IFF between a standard uncemented tapered-wedge femoral stem and its second-generation successor with the following design changes: size-specific medial curvature, proportional incremental stem growth, modest reduction in stem length, and distal lateral relief...
May 15, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28647365/conjugated-linoleic-acid-prevents-age-induced-bone-loss-in-mice-by-regulating-both-osteoblastogenesis-and-adipogenesis
#12
Guanlin Lin, Huan Wang, Jun Dai, Xiao Li, Ming Guan, Shutao Gao, Qing Ding, Huaixi Wang, Huang Fang
Osteoporosis (OP) can increase the risk of bone fracture and other complications, which is a major clinical problem. Previous researches have revealed that conjugated linoleic acid (CLA) can promote the bone formation. But the mechanisms are not clear. Thus, we tested the hypothesis that CLA acts on bone formation might be via mTOR Complex1 (mTORC 1) pathway by in vitro and vivo assays. We studied the effect of CLA mix on MC3T3-E1 pre-osteoblasts differentiation into osteoblasts, and bone formation under osteoporotic conditions...
June 21, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28645423/a-technique-for-extraction-of-the-distal-segment-of-a-broken-femoral-nail-using-a-flexible-reamer
#13
C Zhao, G J R Slater
INTRODUCTION: Extraction of broken femoral nails in peri-implant fractures is becoming an increasingly common problem faced by orthopaedic surgeons. Different closed and open techniques for removal of broken nails have been previously described but due to variations in equipment and fracture configurations these methods are not always easily reproducible. We describe an open surgical technique using simple equipment that can be utilised when other methods of extraction have failed. CASE PRESENTATION AND SURGICAL TECHNIQUE: We present a case of a peri-implant fracture secondary to non-union involving a short cephalomedullary nail where the broken distal segment of nail was significantly more distal to the femoral fracture site...
June 16, 2017: Injury
https://www.readbyqxmd.com/read/28641194/use-of-a-long-distally-fixed-intramedullary-stem-to-treat-a-periprosthetic-femoral-fracture-following-total-hip-arthroplasty-using-a-thrust-plate-hip-prosthesis-a-case-report
#14
Hiroyuki Hatanaka, Goro Motomura, Satoshi Ikemura, Kazuhiko Sonoda, Yusuke Kubo, Takeshi Utsunomiya, Takuaki Yamamoto, Yasuharu Nakashima
INTRODUCTION: The thrust plate hip prosthesis (TPP; Zimmer, Winterthur, Switzerland) is a hip prosthesis that is no longer in production. Few reports have focused on periprosthetic fractures following total hip arthroplasty (THA) with the use of a TPP. PRESENTATION OF CASE: We report a 57-year-old woman with a periprosthetic femoral fracture 13 years after THA with the use of a TPP. A plain radiograph showed a displaced subtrochanteric fracture of the right femur just below the distal tip of the lateral plate without implant loosening...
June 13, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28639848/intraoperative-correction-of-femoral-rotational-deformity-using-a-conventional-navigation-system-and-a-smartphone-a-novel-technique
#15
Jia-Qing Cao, Jing-Huan Huang, Ting Yuan, Wei-Tao Jia, Hong Gao
The intraoperatively rotational control of femoral shaft fractures treated with a closed intramedullary interlocking nailing is a challenging problem. A novel surgical technique that includes respective insertions of guidewires into the proximal and distal femur under the guidance of a 2-dimensional fluoroscopy-based navigation system and the measurements of the intersection angle subtended by the proximal and distal guidewires with the smartphone positional software has been designed to provide intraoperatively quantitative parameters of femoral rotation deformation...
June 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28630841/bipolar-hemiarthroplasty-in-a-patient-with-above-knee-amputation-surgical-technique
#16
Ramesh Perumal, Santhosh Ram Gaddam, J Vasudeva, J Dheenadhayalan, S Rajasekaran
INTRODUCTION: Femoral neck fractures are a common occurrence in lower limb amputees. Good post-operative results of hip hemiarthroplasty have been described in below-knee amputees. However, to our knowledge, very few such cases have been reported in above-knee amputees. CASE REPORT: We present a case of a 75-year-old male patient who underwent above-knee amputation of the right lower limb for severe crush injury right leg and a bipolar hemiarthroplasty for an ipsilateral fracture neck of femur sustained in the same road traffic accident...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28629234/healing-of-osteochondral-defects-via-endochondral-ossification-in-an-ovine-model
#17
Helen Lydon, Alan Getgood, Frances M D Henson
OBJECTIVE: The objective of this study was to describe the mechanism of healing of osteochondral defects of the distal femur in the sheep, a commonly used translational model. Information on the healing mechanism be useful to inform the design of tissue engineering devices for joint surface defect repair. DESIGN: A retrospective study was conducted examining 7-mm diameter osteochondral defects made in the distal medial femoral condyle of 40 adult female sheep, comprising control animals from 3 separate structures...
June 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28623633/biodegradable-intramedullary-nails-reinforced-with-carbon-and-alginate-fibers-in-vitro-and-in-vivo-biocompatibility
#18
Anna Morawska-Chochół, Patrycja Domalik-Pyzik, Elżbieta Menaszek, Jacek Sterna, Wojciech Bielecki, Joanna Bonecka, Maciej Boguń, Jan Chłopek
BACKGROUND: Commonly, intramedullary nails are made of nondegradable materials, and hence they need to be removed once the bone fracture is healed. We propose a novel composite material consisting of poly-L-lactide matrix modified with carbon and alginate fibers to be used for biodegradable intramedullary fixation. The aim of this study was to make in vitro and in vivo biocompatibility assessments. METHODS: In the in vitro conditions, biocompatibility of biomaterials was compared using normal human osteoblasts...
June 15, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28616759/is-dual-semitendinosus-allograft-stronger-than-turndown-for-achilles-tendon-reconstruction-an-in-vitro-analysis
#19
Michael C Aynardi, Lara C Atwater, Roshan Melvani, Brent G Parks, Adrian G Paez, Stuart D Miller
BACKGROUND: Large Achilles tendon defects pose a treatment challenge. The standard treatment with a turndown flap requires a large extensile incision, puts the sural nerve at risk, and demands slow, careful rehabilitation. Dual allograft semitendinosus reconstruction is a new clinical alternative that has the theoretical advantages of a smaller incision, less dissection, and a stronger construct that may allow for faster rehabilitation. QUESTIONS/PURPOSES: In a cadaver biomechanical model, we compared the dual allograft semitendinosus reconstruction with the myofascial turndown in terms of (1) mechanical strength and resistance to deformation and (2) failure mechanisms in reconstruction of large segmental Achilles defects...
June 14, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28614149/ota-classification-is-highly-predictive-of-acute-compartment-syndrome-following-tibia-fracture-a-cohort-of-2885-fractures
#20
Michael J Beebe, Darryl Auston, Jonathan Quade, Rafael Serrano-Riera, Anjan Shah, David Watson, Roy Sanders, Hassan Mir
OBJECTIVE: To determine the correlation between the OTA classification of tibia fractures and the development of acute compartment syndrome (ACS). DESIGN: Retrospective review of prospectively collected database SETTING:: Single level 1 academic trauma center PATIENTS:: All patients with a tibia fracture from 2006 to 2016. 3606 fractures were initially identified. Skeletally mature patients with plate or intramedullary fixation managed from initial injury through definitive fixation at our institution were included, leaving 2885 fractures in 2778 patients...
May 23, 2017: Journal of Orthopaedic Trauma
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