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distal femur fracture

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https://www.readbyqxmd.com/read/28534951/contribution-of-methylglyoxal-to-delayed-healing-of-bone-injury-in-diabetes
#1
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...
May 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534192/nonunion-and-delayed-union-in-lateral-open-wedge-distal-femoral-osteotomies-a-legitimate-concern
#2
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
#3
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
#4
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
#5
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
https://www.readbyqxmd.com/read/28497247/-medial-closed-wedge-osteotomy-of-the-distal-femur-in-biplanar-technique-and-a-specific-plate-fixator
#6
REVIEW
P Lobenhoffer, K Kley, D Freiling, R van Heerwaarden
OBJECTIVE: Correction of distal femur deformity by closed-wedge biplanar osteotomy. INDICATIONS: Metaphyseal frontal plane deformities of the femur. CONTRAINDICATIONS: Osteoarthritis of the contralateral compartment, total loss of the contralateral meniscus, acute/chronic infection, limited range-of-motion, poor soft-tissue conditions at site of surgery. SURGICAL TECHNIQUE: Skin incision at metaphyseal area of femur...
May 11, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28474269/intra-operative-fiducial-based-ct-fluoroscope-image-registration-framework-for-image-guided-robot-assisted-joint-fracture-surgery
#7
Giulio Dagnino, Ioannis Georgilas, Samir Morad, Peter Gibbons, Payam Tarassoli, Roger Atkins, Sanja Dogramadzi
PURPOSE: Joint fractures must be accurately reduced minimising soft tissue damages to avoid negative surgical outcomes. To this regard, we have developed the RAFS surgical system, which allows the percutaneous reduction of intra-articular fractures and provides intra-operative real-time 3D image guidance to the surgeon. Earlier experiments showed the effectiveness of the RAFS system on phantoms, but also key issues which precluded its use in a clinical application. This work proposes a redesign of the RAFS's navigation system overcoming the earlier version's issues, aiming to move the RAFS system into a surgical environment...
May 4, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28464756/increased-risk-of-early-and-medium-term-revision-after-post-fracture-total-knee-arthroplasty
#8
Anders El-Galaly, Steffen Haldrup, Alma Becic Pedersen, Andreas Kappel, Michael Ulrich Jensen, Poul Torben Nielsen
Background and purpose - Total knee arthroplasty (TKA) due to posttraumatic fracture osteoarthritis (PTFA) may be associated with inferior prosthesis survival. This study is the first registry-based study solely addressing this issue. Both indications and predictors for revision were identified. Patients and methods - 52,518 primary TKAs performed between 1997 and 2013 were retrieved from the Danish Knee Arthroplasty Register (DKR). 1,421 TKAs were inserted due to PTFA and 51,097 due to primary osteoarthritis (OA)...
June 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28455561/radiographic-assessment-of-distal-femur-cemented-stems-in-tumor-endoprostheses
#9
R E Turcotte, N A Stavropoulos, J Toreson, M Alsultan
BACKGROUND: Distal femoral endoprosthesis (DFE) has become the optimal method of reconstruction in the skeletally mature patients treated for malignant bone tumor. Albeit literature has reported wide range of aseptic loosening in cemented components (6-32%), few authors showed that cement was not detrimental to long-term success of primary distal femoral implants possibly relating to cementing technique. METHODS: A series of consecutive of DFE (MRS and GMRS, Styker Orthopaedics, Mahwah, NJ) was retrospectively reviewed for evidence of loosening on plain radiographs...
April 28, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28426251/current-concepts-of-the-anterolateral-ligament-of-the-knee-anatomy-biomechanics-and-reconstruction
#10
Matthew J Kraeutler, K Linnea Welton, Jorge Chahla, Robert F LaPrade, Eric C McCarty
In 1879, Paul Segond described an avulsion fracture (now known as a Segond fracture) at the anterolateral proximal tibia with the presence of a fibrous band at the location of this fracture. Although references to this ligament were occasionally made in the anatomy literature after Segond's discovery, it was not until 2012 that Vincent et al named this ligament what we know it as today, the anterolateral ligament (ALL) of the knee. The ALL originates near the lateral epicondyle of the distal femur and inserts on the proximal tibia near Gerdy's tubercle...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28410835/modified-extended-trochanteric-osteotomy-for-the-treatment-of-vancouver-b2-b3-periprosthetic-fractures-of-the-femur
#11
Andreas Ladurner, Pia Zurmühle, Vilijam Zdravkovic, Karl Grob
BACKGROUND: Femoral component revision is the treatment of choice for Vancouver type B2/B3 periprosthetic femur fractures (PFFs). The purpose of this study was to report the clinical outcome of revision total hip arthroplasty with the use of a modified extended trochanteric osteotomy (ETO) in PFF treatment. METHODS: A total of 43 cases between 2000 and 2014 were analyzed. Clinical and radiographic evaluation was performed with a mean follow-up of 40 months. Patient survival after revision surgery, complications, radiographic outcomes, and quality of life and hip function were assessed...
March 8, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28394844/implant-material-type-of-fixation-at-the-shaft-and-position-of-plate-modify-biomechanics-of-distal-femur-plate-osteosynthesis
#12
Utku Kandemir, Peter Augat, Stefanie Konowalczyk Dipl-Ing, Felix Wipf Dipl-Ing, Geert von Oldenburg Dipl-Ing, Ulf Schmidt
OBJECTIVES: The purpose of this study is to investigate whether 1. the type of fixation at the shaft (hybrid vs. locking), 2. the position of the plate (offset vs. contact) and 3. the implant material has a significant effect on a) construct stiffness and b) fatigue life in a distal femur extraarticular comminuted fracture model using the same design of distal femur periarticular locking plate. METHODS: An extraarticular severely comminuted distal femoral fracture pattern (AO/OTA 33-A3) was simulated using artificial bone substitutes...
April 7, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28391428/do-clinical-outcomes-correlate-with-bone-density-after-open-reduction-and-internal-fixation-of-tibial-plateau-fractures
#13
Elizabeth Gausden, Matthew R Garner, Peter D Fabricant, Stephen J Warner, Andre D Shaffer, Dean G Lorich
INTRODUCTION: The operative management of tibial plateau fractures in elderly patients has historically led to inconsistent results, and these clinical outcomes were thought to be associated with poor bone quality often in elderly patients. The goal of this study was to investigate the relationship between bone density and subjective clinical outcome scores after open reduction and internal fixation of tibial plateau fractures. MATERIALS AND METHODS: This is a retrospective cohort study from a single-surgeon conducted at an Academic, Level 1 Trauma Center...
April 8, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28385943/is-there-still-a-role-for-osteoarticular-allograft-reconstruction-in-musculoskeletal-tumour-surgery-a-long-term-follow-up-study-of-38-patients-and-systematic-review-of-the-literature
#14
REVIEW
M P A Bus, M A J van de Sande, A H M Taminiau, P D S Dijkstra
AIMS: To assess complications and failure mechanisms of osteoarticular allograft reconstructions for primary bone tumours. PATIENTS AND METHODS: We retrospectively evaluated 38 patients (28 men, 74%) who were treated at our institution with osteoarticular allograft reconstruction between 1989 and 2010. Median age was 19 years (interquartile range 14 to 32). Median follow-up was 19.5 years (95% confidence interval (CI) 13.0 to 26.1) when 26 patients (68%) were alive...
April 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28362373/proximal-cadaveric-femur-preparation-for-fracture-strength-testing-and-quantitative-ct-based-finite-element-analysis
#15
Dan Dragomir-Daescu, Asghar Rezaei, Susheil Uthamaraj, Timothy Rossman, James T Bronk, Mark Bolander, Vincent Lambert, Sean McEligot, Rachel Entwistle, Hugo Giambini, Iwona Jasiuk, Michael J Yaszemski, Lichun Lu
Cadaveric fracture testing is routinely used to understand factors that affect proximal femur strength. Because ex vivo biological tissues are prone to lose their mechanical properties over time, specimen preparation for experimental testing must be performed carefully to obtain reliable results that represent in vivo conditions. For that reason, we designed a protocol and a set of fixtures to prepare the femoral specimens such that their mechanical properties experienced minimal changes. The femora were kept in a frozen state except during preparation steps and mechanical testing...
March 11, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28348262/rare-progression-of-cholangiocarcinoma-distal-femoral-metastasis
#16
Sam A MacKenzie, Joaquim Stanislas Olivier Goffin, Conor Rankin, Tom Carter
Cholangiocarcinoma (CCA) is a rare cancer of the bile duct epithelial cells, with metastases to long bones rarely reported. We present the case of a woman aged 61 years, diagnosed with CCA 6 years previously. She presented with right thigh discomfort, rapidly progressing to immobility with severe pain. Radiological investigations revealed a lytic lesion in her right distal femur, most likely a metastatic deposit, at high risk of pathological fracture. This was managed with an en bloc resection and implantation of a distal femoral replacement...
March 27, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28336251/distal-extension-of-the-anterior-approach-to-the-hip-using-the-femoral-interbundle-technique-surgical-technique-and-case-series
#17
Stijn G M Ghijselings, Ronald Driesen, Jean-Pierre Simon, Kristoff Corten
BACKGROUND: The direct anterior approach (DAA) is becoming more popular as the standard surgical approach for primary total hip arthroplasty. However, it has been associated with an increased incidence of intraoperative femoral fractures in particular during the learning curve. Distal extension of the approach may be needed in case of intraoperative complications. The aim of the present study is to describe the distal extension of the DAA using the femoral interbundle technique. METHODS: A stepwise approach based on a cadaveric study to extend the DAA distally is presented...
February 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28331020/isolated-lower-limb-hypoplasia-secondary-to-congenital-varicella-syndrome-a-rare-occurrence-and-management-of-its-complications
#18
Sneha Mehta, Willem Schenk, Stephen Kirker, Amit Atrey
Isolated lower limb hypoplasia is a rare consequence of maternal congenital varicella syndrome (CVS). The hypoplastic limb is susceptible to multiple injuries, including fractures, especially if there is associated muscle weakness and lack of sensation. We describe a unique index case of a woman aged 26 years with a background of CVS who presented with a distal femur fracture following a fall onto her insensate, hypoplastic right leg. This report highlights the complexities involved in the diagnosis and management of fractures in patients with an anaesthetic limb, and in particular describes limb amputation as a successful treatment modality for distal femur fractures...
March 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28326303/current-role-and-application-of-teriparatide-in-fracture-healing-of-osteoporotic-patients-a-systematic-review
#19
Sang-Min Kim, Kyung-Chung Kang, Ji Wan Kim, Seung-Jae Lim, Myung Hoon Hahn
BACKGROUND: The use of osteoanabolic agents to facilitate fracture healing has been of heightened interest to the field of orthopaedic trauma. This study aimed to evaluate the evidence of teriparatide for fracture healing and functional recovery in osteoporotic patients. METHODS: We performed a literature search in PubMed, EMBASE, Web of Science, and the Cochrane Library using terms including "Fracture" [tiab] AND "Teriparatide [tiab] OR "PTH" [tiab]. RESULTS: This systematic review included 6 randomized clinical trials, 4 well-controlled retrospective studies, and 1 retrospective post hoc subgroup analysis...
February 2017: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/28320209/anterolateral-ligament-of-the-knee-anatomy-function-imaging-and-treatment
#20
Ronak M Patel, Robert H Brophy
The anterolateral ligament (ALL) of the knee has gained attention recently for its potential role in rotational stability of the knee, especially in association with anterior cruciate ligament (ACL) injuries. Anatomic studies have characterized the ALL as it runs in an anteroinferior and oblique direction from the lateral distal femur to the anterolateral proximal tibia, although the prevalence and variance of this ligament are not well understood. Magnetic resonance imaging and ultrasound have identified the ligament and linked it with the classically described Segond fracture...
March 1, 2017: American Journal of Sports Medicine
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