Comparison of Clinical Results and Polyethylene Wear Associated with 26- and 32- mm Heads in Total Hip Arthroplasty A Multicen
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چکیده
26and 32mm Heads in Total Hip Arthroplasty A Multicenter, Prospective, Randomized Study . +Nakamura, Y; Naito, M; Moriyama, S; Okawa, T; Kume, S; Saito, M; Hagio, K; Koyama, T +Departement of Orthopaedic Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan Department of Mechanical Engineering, Fukuoka University, Fukuoka, Japan Department of Joint Surgery, Kurume University Medical Center, Fukuoka, Japan Department of Orthopaedic Surgery, Osaka Minami Medical Center, Osaka, Japan [email protected]
منابع مشابه
A comparison of polyethylene wear between cobalt-chrome ball heads and alumina ball heads after total hip arthroplasty: a 10-year follow-up
STUDY DESIGN This is a retrospective study comparing polyethylene wear between ceramic ball heads and metal ball heads in total hip arthroplasty. BACKGROUND The ceramic-on-polyethylene bearing option has been introduced as an alternative to metal-on-polyethylene to minimize polyethylene wear debris and reduce subsequent osteolysis and aseptic loosening. However, the reported data were debatab...
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We examined the behaviour of alumina ceramic heads in 156 cemented total hip arthroplasties, at a minimum follow-up of eight years. They were divided into three groups according to the size of the femoral head; 22, 26, and 28 mm. We measured polyethylene wear radiologically using a computer-aided technique. The linear wear rate of polyethylene sockets for the 28 mm heads was high (0.156 mm/year...
متن کاملIn vivo measurement of polyethylene wear in cementless total hip arthroplasty.
PURPOSE OF THE STUDY Recent years have seen an increase in cementless total hip endoprosthesis (THP) implantations. Easy radiological measurement of wear in cups coated with X-ray dense material, such as metal or ceramics, is not applicable. An alternative technique has thus been developed to radiographically measure wear on cementless spherical implants. MATERIAL AND METHODS The authors pres...
متن کاملAlumina-on-alumina total hip replacement for femoral neck fracture in healthy patients
BACKGROUND Total hip replacement is considered the best option for treatment of displaced intracapsular fractures of the femoral neck (FFN). The size of the femoral head is an important factor that influences the outcome of a total hip arthroplasty (THA): implants with a 28 mm femoral head are more prone to dislocate than implants with a 32 mm head. Obviously, a large head coupled to a polyethy...
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We report the findings from independent prospective clinical and laboratory-based joint-simulator studies of the performance of ceramic femoral heads of 22.225 mm diameter in cross-linked polyethylene (XLP) acetabular cups. We found remarkable qualitative and quantitative agreement between the clinical and simulator results for the wear characteristics with time, and confirmed that ceramic femo...
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تاریخ انتشار 2010