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https://www.readbyqxmd.com/read/28524620/clinical-performance-and-survivorship-of-navigated-floating-platform-mobile-bearing-total-knee-arthroplasty-a-minimum-10-year-follow-up
#1
Sang-Min Kim, Jai-Gon Seo, Seung-Jae Lim, Hyung-Tae Lim, Chang-Ho Cho, Young-Wan Moon
BACKGROUND: The purpose of this study is to report the outcome of navigation-assisted cruciate-retaining total knee arthroplasty (TKA) using one type of cemented, second-generation, floating-platform (FP), mobile-bearing system. METHODS: Forty-two patients who underwent cruciate retaining TKAs using e.motion-FP prostheses under navigational guidance were retrospectively reviewed. The preoperative diagnosis was osteoarthritis in all knees except one rheumatoid arthritis...
May 19, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28516218/a-high-fat-diet-can-affect-bone-healing-in-growing-rats
#2
Jéssica Suzuki Yamanaka, Gabriela Rezende Yanagihara, Bruna Leonel Carlos, Júnia Ramos, Brígida Batista Brancaleon, Ana Paula Macedo, João Paulo Mardegan Issa, Antônio Carlos Shimano
A high-fat diet (HFD) can have a negative effect on bone quality in young and old people. Although bone healing in children is normally efficient, there is no evidence that children who have a diet rich in fat have compromised bone fracture regeneration compared with children with recommended dietary fat levels. The purpose of the present study was to evaluate the effects of an HFD on bone healing in growing female rats. Twenty-six postweaning female Wistar rats were divided into two groups (13 animals per group): a standard diet (SD) group and an HFD (with 60% of energy from fat) group...
May 17, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28515335/in-situ-bone-tissue-engineering-via-ultrasound-mediated-gene-delivery-to-endogenous-progenitor-cells-in-mini-pigs
#3
Maxim Bez, Dmitriy Sheyn, Wafa Tawackoli, Pablo Avalos, Galina Shapiro, Joseph C Giaconi, Xiaoyu Da, Shiran Ben David, Jayne Gavrity, Hani A Awad, Hyun W Bae, Eric J Ley, Thomas J Kremen, Zulma Gazit, Katherine W Ferrara, Gadi Pelled, Dan Gazit
More than 2 million bone-grafting procedures are performed each year using autografts or allografts. However, both options carry disadvantages, and there remains a clear medical need for the development of new therapies for massive bone loss and fracture nonunions. We hypothesized that localized ultrasound-mediated, microbubble-enhanced therapeutic gene delivery to endogenous stem cells would induce efficient bone regeneration and fracture repair. To test this hypothesis, we surgically created a critical-sized bone fracture in the tibiae of Yucatán mini-pigs, a clinically relevant large animal model...
May 17, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28514526/direct-medial-approach-in-surgical-fixation-of-fractures-in-the-posterior-aspect-of-the-medial-malleolus
#4
Ang Chay-You, Ling Marcus, Koh Joyce Suang-Bee, Howe Tet-Sen
BACKGROUND: Fractures in the posterior aspect of the medial malleolus form an important subset of ankle fractures and the indications for fixation include involvement of > 25% of the articular surface or an articular step off by > 2mm. Several approaches have been described but there has been no recent study on the direct medial approach. METHODS: Five fresh frozen cadaveric ankles were dissected using the direct medial approach. A longitudinal incision of 10cm was centered directly over the medial malleolus and deepened straight down to the bone...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28514314/infected-tibia-defect-fractures-treated-with-the-masquelet-technique
#5
Julia Mühlhäusser, Jörg Winkler, Reto Babst, Frank J P Beeres
The treatment after open and infected fractures with extensive soft tissue damage and bone deficit remains a challenging clinical problem. The technique described by Masquelet, using a temporary cement spacer to induce a membrane combined with reconstructive soft tissue coverage, is a possible solution. This study describes the work-up, operative procedure, complications, and the outcome of a homogenous group of patients with an open and infected tibia fracture and segmental bone loss treated with the Masquelet technique (MT)...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28512004/contribution-of-high-resolution-peripheral-quantitative-ct-to-the-management-of-bone-and-joint-diseases
#6
Eric Lespessailles, Nada Ibrahim-Nasser, Hechmi Toumi, Roland Chapurlat
Many imaging modalities have been described to diagnose and monitor osteoporosis (OP), osteoarthritis and inflammatory rheumatic diseases. Over the last ten years, High Resolution peripheral Quantitative Computerized Tomography (HR-pQCT) was shown to be a precise and non invasive technique to study bone and joint diseases in clinical research. It allows the study of both cortical and trabecular bone microarchitecture at the distal tibia and radius, and further applications have been developed such as the study of mechanical properties by the finite element analysis...
May 13, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28511467/chaput-tubercle-fracture-in-an-adult-a-rare-case-report
#7
Pankaj Kumar Mishra, Vikram Patidar, Satya Prakash Singh
Chaput tubercle fracture occurs at the antero-lateral position of the distal tibia in adult as a counterpart of adolescent Tillaux fracture. It is a case of adult male which presented to us with onset of acute pain, swelling and restricted movements of ankle after a road side accident. A clinical diagnosis of Chaput tubercle fracture was established after a CT-scan. The displaced fracture was managed by open reduction and internal fixation by screw. At the end of follow up, the foot and ankle ability score measured...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28503349/medial-malleolar-fractures-an-anatomic-survey-determining-the-ideal-screw-length
#8
P J Labronici, R E Pires, M V Franco, R Freitas, G C Araújo, R S Pires E Albuquerque, V S Gameiro, K Jeray
BACKGROUND: Medial malleolar fractures are frequent, and their treatment is familiar to the orthopedic surgeon. Lag screw fixation using partially threaded screws remains the standard treatment method for medial malleolar fractures. However, the literature lacks a defined method for selecting lag screw length, relying more so on the empiric choice of the surgeon. AIM: The aim of this study is to help define the ideal lag screw length for medial melleolar fracture fixation...
September 2016: Annals of Medical and Health Sciences Research
https://www.readbyqxmd.com/read/28503290/use-of-the-suprapatellar-approach-in-intramedullary-nailing-of-a-multi-fragmentary-dislocated-tibia-fracture-with-a-hypermobile-intermediate-fragment-in-a-young-patient
#9
Patrick Haubruck, Ulf Brunnemer, Arash Moghaddam, Gerhard Schmidmaier
A case of an adolescent female patient who suffered from first grade open multi-fragment fracture of the tibia (AO42-C2) with a large hypermobile intermediate fragment is presented in this case report. Intramedullary nailing of the tibia remains the treatment of choice despite a high risk of malformation and anterior knee pain especially in multi-fragment fractures. Here the suprapatellar approach as a semiextended nailing technique seems favorable. The specialty in our case was an early change of procedures necessary due to persistent swelling during external fixation based on the hypermobile intermediate fragment...
November 17, 2016: Orthopedic Reviews
https://www.readbyqxmd.com/read/28502602/uncontacted-tire-explosion-causing-trauma-to-bilateral-lower-extremities-a-case-report
#10
Ming-Yang Yu, Yun Su, Xiang-Jun Meng, Bo-Wu Luan, Gui-Shan Gu, Qiang Sun, De-Wei Zhao
It is uncommon for tire explosion related injuries on the lower extremity. The bilateral lower extremities were injured by tire explosion when the patient was seated in a bus. She sustained an open fracture with partial bone loss in the right calcaneus (a comminuted fracture in the right ankle joint) and a closed comminuted fracture in the left tibia and fibula. This damage was caused by uncontacted tire explosion, thanks to a thick floor between the exploded tire and the patient's feet. This type of injury on lower extremity caused by uncontacted tire explosion was uncommon...
March 16, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28499922/critical-analysis-of-the-lever-test-for-diagnosis-of-anterior-cruciate-ligament-insufficiency
#11
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/28499093/the-segond-fracture-is-an-avulsion-of-the-anterolateral-complex
#12
Humza Shaikh, Elmar Herbst, Ata Amir Rahnemai-Azar, Marcio Bottene Villa Albers, Jan-Hendrik Naendrup, Volker Musahl, James J Irrgang, Freddie H Fu
BACKGROUND: The Segond fracture was classically described as an avulsion fracture of the anterolateral capsule of the knee. Recently, some authors have attributed its pathogenesis to the "anterolateral ligament" (ALL). Biomechanical studies that have attempted to reproduce this fracture in vitro have reported conflicting findings. PURPOSE: To determine the anatomic characteristics of the Segond fracture on plain radiographs and magnetic resonance imaging (MRI), to compare this location with the location of the ALL described in prior radiographic and anatomic publications, and to determine the fracture's attachments to the soft tissue anterolateral structures of the knee...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28495360/fractures-and-osteomalacia-in-a-patient-treated-with-frequent-home-hemodialysis
#13
Mark R Hanudel, Larry Froch, Barbara Gales, Harald Jüppner, Isidro B Salusky
Bone deformities and fractures are common consequences of renal osteodystrophy in the dialysis population. Persistent hypophosphatemia may be observed with more frequent home hemodialysis regimens, but the specific effects on the skeleton are unknown. We present a patient with end-stage renal disease treated with frequent home hemodialysis who developed severe bone pain and multiple fractures, including a hip fracture and a tibia-fibula fracture complicated by nonunion, rendering her nonambulatory and wheelchair bound for more than a year...
May 9, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28493494/stat3-promotes-bone-fracture-healing-by-enhancing-the-foxp3-expression-and-the-suppressive-function-of-regulatory-t-cells
#14
Guojing Sun, Zhen Wang, Yunfan Ti, Yicun Wang, Jun Wang, Jianning Zhao, Hongbo Qian
Signal transducer and activator of transcription 3 (STAT3) is a key signaling protein in the skeletal system as well as in the immune system. Accumulating evidence demonstrates that the inflammatory response is deeply involved in the healing process of bone fractures, but how the immune system is regulated during this process is unclear. In this study, we examined STAT3-mediated regulation of immunity in adult patients with closed tibia fracture. In all patients, the expression and activation of STAT3 peaked at around day 7 to day 14 after surgery, and gradually decreased during the rest of the healing period...
May 11, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28486284/transitioning-to-an-intramedullary-lengthening-and-compression-nail
#15
Austin T Fragomen
The magnetic intramedullary lengthening nail is an innovative technology that allows for creative ways to treat difficult problems. The lengthening option has revolutionized femur fracture management with bone loss and malunion therapy. The compression version of this nail has provided a gradual method to compress nonunions and difficult fractures that may obviate the need for many current uses of external fixation. Three cases are presented in this manuscript demonstrating a new paradigm in the management of bone loss/shortening of the tibia and femur, and recalcitrant nonunions...
June 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28483358/induced-membrane-technique-combined-with-two-stage-internal-fixation-for-the-treatment-of-tibial-osteomyelitis-defects
#16
Fei Luo, Xiaohua Wang, Shulin Wang, Jingshu Fu, Zhao Xie
INTRODUCTION: The purpose of this study was to observe the effects of induced membrane technique combined with two-stage internal fixation in the treatment of tibial osteomyelitis defects. METHODS: A retrospective analyses for 67 cases of tibialosteomyelitis defects were admitted to our department between September 2012 to February 2015, which were treated with induced membrane technique. At the first stage, implanted with a PMMA cement spacer in the defects after radical debridement and fixed with reconstructive locked plate...
April 26, 2017: Injury
https://www.readbyqxmd.com/read/28482680/optimal-starting-point-for-fifth-metatarsal-zone-ii-fractures-a-cadaveric-study
#17
Geoffrey I Watson, Sydney C Karnovsky, Gabrielle Konin, Mark C Drakos
BACKGROUND: Identifying the optimal starting point for intramedullary fixation of tibia and femur fractures is well described in the literature using a retrograde or anterograde technique. This technique has not been applied to the fifth metatarsal, where screw trajectory can cause iatrogenic malreduction. The generally accepted starting point for the fifth metatarsal is "high and inside" to accommodate the fifth metatarsal's dorsal apex and medial curvature. We used a retrograde technique to identify the optimal starting position for intramedullary fixation of fifth metatarsal fractures...
April 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28480574/description-of-the-incidence-clinical-presentation-and-outcome-of-proximal-limb-and-pelvic-fracture-in-hong-kong-racehorses-2003-2014
#18
L McGlinchey, M J Hurley, C Riggs, S M Rosanowski
REASONS FOR PERFORMING THE STUDY: Few studies have described the incidence of proximal limb and pelvic fractures (PLPF) occurring in Thoroughbred racehorses on race-day and during training. There is limited information regarding clinical presentation and future racing career in PLPF cases. OBJECTIVES: Describe the incidence, clinical presentation and outcome of PLPF sustained by horses in racing and training at the Hong Kong Jockey Club (HKJC) between 2003 and 2014...
May 8, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28479051/asymmetry-in-gait-pattern-following-bicondylar-tibial-plateau-fractures-a-prospective-one-year-cohort-study
#19
Rasmus Elsoe, Peter Larsen
INTRODUCTION: Despite the high number of studies evaluating outcomes following tibial plateau fractures, the literature lacks studies including the objective assessment of gait pattern. The purpose of the present study was to evaluate asymmetry in gait patterns at 12 months after frame removal following ring fixation of a tibial plateau fracture. PATIENTS AND METHODS: The study design was a prospective cohort study. The primary outcome measurement was the gait patterns 12 months after frame removal measured with a pressure-sensitive mat...
April 27, 2017: Injury
https://www.readbyqxmd.com/read/28474432/associations-of-muscle-force-power-cross-sectional-muscle-area-and-bone-geometry-in-older-uk-men
#20
Ayse Zengin, Stephen R Pye, Michael J Cook, Judith E Adams, Rainer Rawer, Frederick C W Wu, Terence W O'Neill, Kate A Ward
BACKGROUND: Ageing is associated with sarcopenia, osteoporosis, and increased fall risk, all of which contribute to increased fracture risk. Mechanically, bone strength adapts in response to forces created by muscle contractions. Adaptations can be through changes in bone size, geometry, and bending strength. Muscle mass is often used as a surrogate for muscle force; however, force can be increased without changes in muscle mass. Increased fall risk with ageing has been associated with a decline in muscle power-which is a measure of mobility...
May 4, 2017: Journal of Cachexia, Sarcopenia and Muscle
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