Early failure of metal-backed patellar arthroplasty
نویسندگان
چکیده
منابع مشابه
Metal-backed versus all-polyethylene unicompartmental knee arthroplasty
OBJECTIVES Up to 40% of unicompartmental knee arthroplasty (UKA) revisions are performed for unexplained pain which may be caused by elevated proximal tibial bone strain. This study investigates the effect of tibial component metal backing and polyethylene thickness on bone strain in a cemented fixed-bearing medial UKA using a finite element model (FEM) validated experimentally by digital image...
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Early failures of metal-on-metal total hip arthroplasty (THA) occur due to aseptic loosening, metal hypersensitivity reactions, pseudotumor formation, and component seizing. The purpose of this study was to investigate the timing, common modes of failure, clinical outcomes, and incidence of metal-on-metal THA revisions. A review was performed of 80 patients who underwent revision of a failed me...
متن کاملEarly clinical failure of the ACCIS® metal on metal hip arthroplasty system - A metal on metal hip with a difference.
The ACCIS hip system has been marketed with a unique bearing surface which the manufacturers claim to reduce wear below the level of other MoM bearings and consequently less metal ion release. The cobalt-chrome-molybdenum alloy is heat treated to reduce the number and size of block carbides and the surface is modified with titanium-niobium-nitride to create a ceramic-like surface. We present ou...
متن کاملMetal-backed versus all-polyethylene tibial components in primary total knee arthroplasty
BACKGROUND AND PURPOSE The choice of either all-polyethylene (AP) tibial components or metal-backed (MB) tibial components in total knee arthroplasty (TKA) remains controversial. We therefore performed a meta-analysis and systematic review of randomized controlled trials that have evaluated MB and AP tibial components in primary TKA. METHODS The search strategy included a computerized literat...
متن کاملDissociation of mobile-bearing patellar component in low contact stress patellofemoral arthroplasty, its mechanism and management: two case reports
INTRODUCTION Isolated patellofemoral osteoarthritis can be treated with patellofemoral arthroplasty. CASE PRESENTATION We present two cases of isolated patellofemoral osteoarthritis treated with Low Contact Stress patellofemoral arthroplasty; in both cases the polyethylene mobile-bearing of the patellar component dissociated from the metal backing. One patient had a revision to a Richards pat...
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ژورنال
عنوان ژورنال: The Journal of Bone and Joint Surgery. British volume
سال: 1994
ISSN: 0301-620X,2044-5377
DOI: 10.1302/0301-620x.76b4.8027165