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distal femoral fracture

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https://www.readbyqxmd.com/read/28630841/bipolar-hemiarthroplasty-in-a-patient-with-above-knee-amputation-surgical-technique
#1
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
#2
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
#3
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
#4
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
#5
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
https://www.readbyqxmd.com/read/28607522/agreement-between-fragility-fracture-risk-assessment-algorithms-as-applied-to-adults-with-chronic-spinal-cord-injury
#6
T Cervinka, C L Lynch, L Giangregorio, J D Adachi, A Papaioannou, L Thabane, B C Craven
STUDY DESIGN: Cross-sectional. OBJECTIVES: The objective of the study was to determine and report agreement in fracture risk stratification of adults with spinal cord injury (SCI) using (1) Canadian Association of Radiologists and Osteoporosis Canada (CAROC) and Canadian Fracture Risk Assessment (FRAX) tools with and without areal bone mineral density (aBMD) and (2) SCI-specific fracture thresholds. SETTING: Tertiary rehabilitation center, Ontario, Canada...
June 13, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28604551/the-periosteal-medial-femoral-condyle-free-flap-a-new-option-for-soft-tissue-reconstruction-of-the-distal-lower-extremity
#7
Noah H Saad, Matthew E Pontell, Brian S Winters, Joseph Daniel, Adam Saad
BACKGROUND: Small (<30 cm) soft tissue defects of the distal leg, foot, and ankle pose a complicated issue with regard to wound healing. Multiple flaps have been proposed for reconstruction of these wounds with varying levels of success. The medial femoral condyle flap is a free bone flap supplied by the descending geniculate artery. It is currently used in the treatment of fracture nonunion, infected bone defects, avascular necrosis, and osteoradionecrosis. This study proposes the use of the periosteal portion of the medial femoral condyle (PMFC) flap for soft tissue reconstruction of the distal leg, foot, and ankle...
June 9, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28595481/retrograde-popliteal-access-to-percutaneous-peripheral-intervention-for-chronic-total-occlusion-of-superficial-femoral-arteries
#8
Mert Dumantepe
OBJECTIVE: The aim of this study is to present our initial experience with the use of the retrograde popliteal artery access in patients with chronic total occlusions of superficial femoral artery (SFA). METHOD: From July 2012 to May 2014, a total of 28 patients (20 men, mean age 61.2 ± 11.5 years) with total occlusion of the SFA and good distal runoff were treated with percutaneous atherectomy, balloon angioplasty, and stenting (mean length 165.3 ± 57.5 mm, range 72-336 mm)...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28591963/-extensively-porous-coated-distal-fixation-long-stem-prosthesis-for-unstable-proximal-femur-fracture-with-complex-hip-disease
#9
Song Hong, Jia-Sheng Lin, Yong Zhou, Chang Zou, Wen-Li Zhang, Hong Duan, Chong-Qi Tu
OBJECTIVES: To evaluate the clinical results of femoral proximal fracture with complex hip diseases using an uncemented extensively porous-coated long femoral stems. METHODS: 15 cases of femoral proximal fracture with complex hip diseases treated with the uncemented extensively porous-coated long femoral stem were retrospectively reviewed. All patients were followed up at 1, 3, 6, 12 months in the first year postoperatively and once a year from the second year on...
July 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28567150/cortical-fenestration-for-megaprosthesis-stem-revision
#10
Vincent Y Ng, Philip Louie, Stephanie Punt, Ernest U Conrad Iii
BACKGROUND: The most common modes of failure for megaprostheses are aseptic loosening followed by periprosthetic infection and stem fracture. Surgical technique for bone and implant exposure is controversial and may influence the success of revision and the need for additional future revisions. The purpose of this study was to evaluate the effectiveness of cortical fenestration for megaprosthesis revision, particularly for stem fracture. METHODS: From 1985-2014, 196 adult and pediatric patients underwent limb salvage with a distal femoral or proximal tibial megaprosthesis (109 cemented, 87 pressfit)...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28566791/reverse-distal-femoral-locking-compression-plate-a-salvage-option-in-nonunion-of-proximal-femoral-fractures
#11
Yasir Salam Siddiqui, Mohd Khalid Anwar Sherwani
No abstract text is available yet for this article.
May 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28566786/short-and-mid-term-results-of-revision-total-knee-arthroplasty-with-global-modular-replacement-system
#12
Dariusz Marczak, Jacek Kowalczewski, Jarosław Czubak, Tomasz Okoń, Marek Synder, Marcin Sibiński
BACKGROUND: The original knee megaprostheses with fixed or rotating hinge articulation were custom made and only used for reconstruction of the knee following distal femoral or proximal tibial tumor resections. The aim of the study was to analyze the short- and mid-term results of revision total knee arthroplasty with Global Modular Replacement System (GMRS) used in difficult situations not amenable to reconstruction with standard total knee replacement implants. MATERIALS AND METHODS: Nine patients (9 knees) were treated with this comprehensive modular implant system, with a mean age of 73...
May 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28558915/distal-skeletal-tibia-assessed-by-hr-pqct-is-highly-correlated-with-femoral-and-lumbar-vertebra-failure-loads
#13
Andres Kroker, Ryan Plett, Kyle K Nishiyama, David D McErlain, Clara Sandino, Steven K Boyd
Dual energy X-ray absorptiometry (DXA) is the standard for assessing fragility fracture risk using areal bone mineral density (aBMD), but only explains 60-70% of the variation in bone strength. High-resolution peripheral quantitative computed tomography (HR-pQCT) provides 3D-measures of bone microarchitecture and volumetric bone mineral density (vBMD), but only at the wrist and ankle. Finite element (FE) models can estimate bone strength with 86-95% precision. The purpose of this study is to determine how well vBMD and FE bone strength at the wrist and ankle relate to fracture strength at the hip and spine, and to compare these relationships with DXA measured directly at those axial sites...
May 18, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28547675/complications-following-proximal-femoral-locking-compression-plating-in-unstable-proximal-femur-fractures-medium-term-follow-up
#14
Sandro Hodel, Frank J P Beeres, Reto Babst, Björn-Christian Link
PURPOSE: To assess the outcome in patients treated with proximal femoral locking compression plate (PF-LCP 4.5/5.0, Synthes(©)) for unstable inter- and subtrochanteric femoral fractures. METHODS: A retrospective analysis of 16 patients with proximal femur fractures (AO: 31A2: n = 5/32.3%; 31-A3: n = 10/62.5%; 32B1: n = 1/6.3%) treated with a PF-LCP at a Level 1 trauma centre between 2011 and 2015 was conducted. RESULTS: Sixteen patients were available for follow-up with a mean follow-up time of 14 months (range 4-29)...
May 25, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28544676/robotic-distal-locking-of-intramedullary-nailing-technical-description-and-cadaveric-testing
#15
Martin Panzica, Eduardo M Suero, Ralf Westphal, Musa Citak, Emmanouil Liodakis, Nael Hawi, Max Petri, Christian Krettek, Timo Stuebig
Interlocked intramedullary nailing is the treatment of choice for femoral shaft fractures. However, distal locking is a technically challenging part of the procedure that can result in distal femoral malrotation and high radiation exposure. We have tested a robotic procedure for robotic distal locking based on the computation of a drilling trajectory on two calibrated fluoroscopic images. Twenty distal holes were attempted in ten cadaveric femur specimens. Successful screw hole drilling was achieved at the first attempt in each of the ten specimens (20 drill holes in total)...
May 23, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28534192/nonunion-and-delayed-union-in-lateral-open-wedge-distal-femoral-osteotomies-a-legitimate-concern
#16
Franz Liska, Andreas Voss, Florian B Imhoff, Lukas Willinger, Andreas B Imhoff
INTRODUCTION: Due to a supposed high rate of nonunions in lateral open wedge distal femur osteotomy (LOWDFO), the medial closing wedge technique has been favoured for a long time. The aim of this study was to report the occurrence of delayed- and nonunions following LOWDFO. We hypothesized that the occurrence of nonunions needing revision surgery is comparable to medial closing osteotomies. METHODS: Forty-one patients were treated with LOWDFO with a minimum follow-up of 12 months...
May 23, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28531321/cortical-bone-size-deficit-in-adult-patients-with-type-1-diabetes-mellitus
#17
Charlotte Verroken, Wout Pieters, Loïc Beddeleem, Stefan Goemaere, Hans-Georg Zmierczak, Samyah Shadid, Jean-Marc Kaufman, Bruno Lapauw
CONTEXT: The increased fracture risk associated with type 1 diabetes mellitus (T1DM) remains unexplained by traditional risk factors such as low areal bone mineral density (aBMD). Nonetheless, few data exist on other determinants of bone strength in T1DM, including volumetric BMD (vBMD) and bone geometry. OBJECTIVE: We compared areal and volumetric bone parameters and cortical bone geometry in adult T1DM patients and gender- and age-matched controls. DESIGN: Cross-sectional study including 64 adult T1DM patients (38 men, 41...
May 22, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28529108/a-3-to-18-year-follow-up-of-revision-total-hip-arthroplasty-with-impacted-bone-allografts-and-cemented-lubinus-sp-ii-stem-clinical-radiographic-and-survivorship-analysis-with-comparison-to-the-literature
#18
Hampus Stigbrand, Gösta Ullmark
BACKGROUND: We present the first medium- to long-term follow-up of revision total hip arthroplasty using impaction bone grafting (IBG) combined with the matte and collared Lubinus SP II stem for cases of severe osteolysis and stem loosening. METHODS: Sixty-nine femoral revisions were identified for 67 patients consecutively operated with revision femoral arthroplasty using IBG and a cemented Lubinus SP II stem. The mean age was 69 years (standard deviation, 9.9)...
April 18, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28509822/fracture-prevention-in-the-orthopaedic-environment-outcomes-of-a-coordinator-based-fracture-liaison-service
#19
Earl R Bogoch, Victoria Elliot-Gibson, Dorcas Beaton, Joanna Sale, Robert G Josse
BACKGROUND: Fracture liaison services focus on secondary fracture prevention by identifying patients at risk for future fracture and initiating appropriate evaluation, risk assessment, education, and therapeutic intervention. This study describes key clinical outcomes including bone mineral densitometry, physician assessment, and pharmacotherapy initiation in pharmacotherapy-naïve patients undergoing treatment for fragility fracture in a Canadian fracture liaison service. METHODS: We determined rates of post-fracture investigation and treatment for inpatients and outpatients with a fragility fracture seen in a coordinator-based fracture liaison service at an urban university trauma hospital...
May 17, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28503351/subtrochanteric-and-distal-femur-fractures-in-a-patient-with-femoral-shaft-fracture-malunion-and-knee-disarticulation-a-rare-and-challenging-case-report
#20
R E Pires, E O Santana, P J Labronici, I A Almeida Filho
This study aims to describe a rare and challenging case of a patient who presented ipsilateral subtrochanteric and distal femur fractures due to low-energy trauma. The peculiarity of this case is the presence of femoral shaft fracture malunion and knee disarticulation in the same limb resulting from an accident suffered 30 years ago. The patient underwent femoral diaphyseal osteotomy and fixation of the subtrochanteric and distal femur fractures with a long cephalomedullary nail and distal femur locking plate, respectively...
September 2016: Annals of Medical and Health Sciences Research
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