Wear rate and medium-term survival of a cemented, moderately cross-linked polyethylene acetabular prosthesis
نویسندگان
چکیده
منابع مشابه
Wear of moderately cross-linked polyethylene fixed bearing knee replacements
Cross-linked polyethylene has been explored as an alternative to conventional polyethylene in total joint replacement in order to reduce wear volume and decrease failure through polyethylene wear debris induced osteolysis [1]. Due to the demands of a total knee replacement, moderately cross-linked polyethylene is recommended to retain mechanical properties [2]. This study aims to investigate th...
متن کاملValidation of a new 2-D technique for radiographic wear measurement of cemented, highly cross-linked polyethylene acetabular cups
A new 2-D radiographic wear measurement system has been developed which enables the low wear of highly cross-linked polyethylene acetabular cups to be accurately and precisely measured from standard, pelvis radiographs. The software was validated using radiographic images of a measurement jig which could vary the cup orientation and simulate the effect of pelvic tilt/rotation. Wear was simulate...
متن کاملPolyethylene wear in cemented metal-backed acetabular cups.
We examined radiographic polyethylene wear in 233 cemented total hip arthroplasties (201 patients) with either a metal-backed or a non-metal-backed acetabular cup. All patients had identical cemented one-piece titanium femoral stems with a femoral head diameter of 28 mm. The mean linear wear rate was 0.11 mm/yr in metal-backed sockets and 0.08 mm/yr in non-metal-backed sockets (p = 0.0002). The...
متن کاملQuantification of the effect of cross-shear and applied nominal contact pressure on the wear of moderately cross-linked polyethylene.
Polyethylene wear is a great concern in total joint replacement. It is now considered a major limiting factor to the long life of such prostheses. Cross-linking has been introduced to reduce the wear of ultra-high-molecular-weight polyethylene (UHMWPE). Computational models have been used extensively for wear prediction and optimization of artificial knee designs. However, in order to be indepe...
متن کاملAutomated assessment of polyethylene wear in cemented acetabular components using anteroposterior radiographs of total hip replacements
Polyethylene wear in the acetabular components of hip prostheses is implicated in loosening and failure. Radiographic measurement of wear is used to identify patients at risk and to assess prosthesis designs. This paper focuses on analysis of prostheses with cemented acetabular cups from anteroposterior (AP) radiographs. The articular surface of the femoral head and the acetabular rim marker ar...
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ژورنال
عنوان ژورنال: HIP International
سال: 2017
ISSN: 1120-7000,1724-6067
DOI: 10.5301/hipint.5000521