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distal femur fracture

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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
#1
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
#2
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
#3
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
#4
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/28607784/use-of-nonvascularized-autologous-fibular-strut-graft-in-the-treatment-of-major-bone-defect-after-periprosthetic-knee-fracture
#5
Vincenzo Giordano, Bruno Parilha Coutinho, Mateus Kenji Miyahira, Felipe Serrão Mendes de Souza, Ney Pecegueiro do Amaral
We present the case of a patient who suffered a comminuted supracondylar periprosthetic femur fracture. The patient was an 86-year-old lady who suffered a minor fall at home and presented at our hospital with a right comminuted distal femur fracture around a total knee arthroplasty. The patient was submitted to a cruciate-sacrificing total knee replacement 6 years before at the same institution. Despite severe metaphyseal fragmentation and short distal fragment, the prosthesis was stable; thus, open fracture reduction and stabilization with internal fixation were performed...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28597401/biomechanical-evaluation-of-the-risk-of-secondary-fracture-around-short-versus-long-cephalomedullary-nails
#6
William E Daner Iii, John R Owen, Jennifer S Wayne, Ryan B Graves, Mark C Willis
INTRODUCTION: For proximal femur fractures, long cephalomedullary nails (CMNs) are often selected to avoid a diaphyseal stress riser at the tip of a shorter nail. Secondary peri-implant fracture rates for long and short CMN have not been shown to differ clinically. This study biomechanically compares both CMN in a cadaveric model. METHODS: Ten matched pairs of cadaveric femora with short or long CMN were axially loaded and internally rotated to failure. RESULTS: Resulting fractures involved distal interlocking screws of the short and long CMN...
June 8, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28596671/autologous-blood-transfusion-as-a-life-saving-measure-for-a-trauma-patient-with-fracture-femur-and-drug-induced-hemolytic-anemia-a-case-report
#7
Sumit Vishwakarma, Rahul Chaurasia, Arulselvi Subramanian, Vivek Trikha, Kabita Chatterjee
A positive direct antiglobulin test has been reported in 1:1000 to 1:14,000 blood donors and 1-15 % of hospital patients. Drugs may cause a positive direct antiglobulin test result and/or immune-mediated haemolysis with an incidence of approximately 1 in a 1 million population. Our aim is to highlight the importance of following strict transfusion protocols and management insight in a direct antiglobulin test positive patient showing incompatibility with multiple units possibly due to drug induced immune haemolytic anaemia (DIIHA)...
June 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28591963/-extensively-porous-coated-distal-fixation-long-stem-prosthesis-for-unstable-proximal-femur-fracture-with-complex-hip-disease
#8
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/28580394/intraskeletal-variation-in-human-cortical-osteocyte-lacunar-density-implications-for-bone-quality-assessment
#9
Randee L Hunter, Amanda M Agnew
Osteocytes and their lacunocanalicular network have been identified as the regulator of bone quality and function by exerting extensive influence over metabolic processes, mechanical adaptation, and mineral homeostasis. Recent research has shown that osteocyte apoptosis leads to a decrease in bone quality and increase in bone fragility mediated through its effects on remodeling. The purpose of this study is to investigate variation in cortical bone osteocyte lacunar density with respect to major factors including sex, age, and intracortical porosity to establish both regional and systemic trends...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28566786/short-and-mid-term-results-of-revision-total-knee-arthroplasty-with-global-modular-replacement-system
#10
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
#11
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
#12
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
#13
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/28540415/incidence-of-osteosynthesis-of-members-in-france
#14
Patrice Papin, Eric Berthonnaud
PURPOSE: Little data is available on the number of osteosynthesis of limbs in a country. Incidence of osteosynthesis is an essential element for the formation and organization of care. Based on the data from the work of the Hospital Information Technology Agency ( http://www.atih.sante.fr/ ) and available in open access, we wanted to know the incidence of the number of osteosynthesis performed in France and their evolution over ten years between 2006 and 2015. METHODS: The data analyzed are derived from the website of the technical agency of information on the hospitalization (ATIH)...
May 24, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28538286/any-cortical-bridging-predicts-healing-of-supracondylar-femur-fractures-after-treatment-with-locked-plating
#15
Patrick K Strotman, Madhav A Karunakar, Rachel Seymour, William D Lack
OBJECTIVES: To determine the accuracy and reliability of radiographic cortical bridging criteria in predicting the final healing of supracondylar femur fractures after treatment with locked plating. DESIGN: Retrospective review SETTING:: Two level 1 trauma centers PATIENTS/PARTICIPANTS:: We retrospectively reviewed the records at two level 1 trauma centers for patients who presented with supracondylar femur fractures (AO/OTA 33A, C) and were treated with locking plate fixation between 1/1/2004 and 1/1/2011...
May 17, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28534951/contribution-of-methylglyoxal-to-delayed-healing-of-bone-injury-in-diabetes
#16
Takao Aikawa, Hidenori Matsubara, Shuhei Ugaji, Junichi Shirakawa, Ryoji Nagai, Seiichi Munesue, Ai Harashima, Yasuhiko Yamamoto, Hiroyuki Tsuchiya
Patients with diabetes are vulnerable to delayed bone fracture healing or pseudoarthrosis. Chronic sustained hyperglycemia, reactive intermediate derivatives of glucose metabolism, such as methylglyoxal (MGO), and advanced glycation end‑products (AGEs) are implicated in diabetic complications. In the present study, it was examined whether MGO is able to cause disturbed bone healing in diabetes. Diabetes was induced in male mice by injection of streptozotocin (50 mg/kg) for 5 days. A bone defect (1.0‑mm diameter) was created in the left distal femur, and bone repair was assessed from an examination of computed tomography scans...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534192/nonunion-and-delayed-union-in-lateral-open-wedge-distal-femoral-osteotomies-a-legitimate-concern
#17
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/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/28503351/subtrochanteric-and-distal-femur-fractures-in-a-patient-with-femoral-shaft-fracture-malunion-and-knee-disarticulation-a-rare-and-challenging-case-report
#19
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
https://www.readbyqxmd.com/read/28499922/critical-analysis-of-the-lever-test-for-diagnosis-of-anterior-cruciate-ligament-insufficiency
#20
Patrick A Massey, Joshua D Harris, Leland A Winston, David M Lintner, Domenica A Delgado, Patrick C McCulloch
PURPOSE: To critically analyze the "lever test" in detecting anterior cruciate ligament (ACL) tears and to compare its accuracy with the Lachman, anterior drawer (AD), and pivot shift tests. METHODS: From June 2014 to June 2015, 91 subjects were analyzed. Inclusion criteria were subjects aged 16 to 60 years, presenting after a knee injury with subjective swelling, or an objective effusion and an uninjured normal contralateral knee for comparison. Exclusion criteria included previous knee ligamentous reconstruction, fracture of the distal femur or proximal tibia, bilateral knee injuries, or known cruciate ligament tear...
May 9, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
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