The management of tibiotalar arthritis remains a clinical challenge. Conventional treatment relies primarily upon arthrodesis or prosthetic arthroplasty. Fresh osteochondral total ankle allograft transplantation has been reported in limited cases. We report the case of a 42-year-old male who underwent a tibial refrigerated osteochondral allograft and a talar refrigerated osteochondral mosiacplasty. At 66-month follow-up, the patient demonstrated no limp with walking and was able to participate in tennis and snow skiing with no pain. His Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index, total WOMAC score, and American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Scale score were 0, 94, and 98, respectively. The final radiograph showed complete integration of the allograft with mild joint space narrowing. Osteochondral allografting for ankle arthritis may be considered an option in select patients.
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Injury
June 2022
Department of Materials Science and Engineering, Uppsala University, Sweden.
Introduction: The fixation of small intraarticular bone fragments is clinically challenging and an obvious first orthopaedic indication for an effective bone adhesive. In the present study the feasibility of bonding freshly harvested human trabecular bone with OsStic, a novel phosphoserine modified cement, was evaluated using a bone cylinder model pull-out test and compared with a commercial fibrin tissue adhesive.
Methods: Femoral heads (n=13) were collected from hip fracture patients undergoing arthroplasty and stored refrigerated overnight in saline medium prior to testing.
Cartilage
July 2018
1 Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA.
Objective To investigate the responses of refrigerated osteochondral allograft cartilage (OCA) and fresh cartilage (FC), including cell survival and metabolism, to surgical impaction and proinflammatory cytokines. Design Osteochondral plugs (8 mm diameter) were harvested from prolonged-refrigerated (14-28 days) and fresh (≤24 hours postmortem) human femoral hemicondyles and subjected to a 0.2 N s pneumatic impaction impulse.
View Article and Find Full Text PDFAm J Sports Med
October 2015
Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA
Background: Transplantation of osteochondral allografts (OCAs) freshly preserved for ≥30 days has proven to be a reliable technique for cartilage resurfacing. However, the prolonged storage of allografts comes at the expense of chondrocyte viability, which declines precipitously after 14 days under refrigeration. Despite this, radiographic data indicate that most allograft cartilage remains stable for years after implantation.
View Article and Find Full Text PDFJ Orthop Res
January 2016
Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, Mail Code: 8904, New York, New York 10027.
With limited availability of osteochondral allografts, tissue engineered cartilage grafts may provide an alternative treatment for large cartilage defects. An effective storage protocol will be critical for translating this technology to clinical use. The purpose of this study was to evaluate the efficacy of the Missouri Osteochondral Allograft Preservation System (MOPS) for room temperature storage of mature tissue engineered grafts, focusing on tissue property maintenance during the current allograft storage window (28 days).
View Article and Find Full Text PDFJ Zhejiang Univ Sci B
March 2012
Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou, China.
Osteochondral allografting has been proved to be a useful method to treat diseased or damaged areas of joint surfaces. Operational long-term stocks of grafts which supply a buffer between procurement and utilization would contribute to the commercialization or industrialization of this technology. Vitrification has been thought to be a promising method for successful preservation of articular cartilage (AC), but high concentration cryoprotectants (CPAs) are used which may cause high cellular toxicity.
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