There is an increasing awareness of the clinical problems associated with ultra-highmolecular-weight polyethylene (UHMW-PE) wear and failure in orthopaedics. This disadvantage is certainly promoted from the various oxidation process that can occur during prosthesis life. Scanning electron microscopy
Wear mode and wear mechanism of retrieved acetabular cups
โ Scribed by Kengo Yamamoto; Atsuhiro Imakiire; Toshinori Masaoka; Takaaki Shishido; Tatsuro Mizoue; IanC. Clarke; Hiromu Shoji; Keiichi Kawanabe; Jiro Tamura
- Publisher
- Springer
- Year
- 2003
- Tongue
- English
- Weight
- 444 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0341-2695
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๐ SIMILAR VOLUMES
This study analyzed wear patterns of, and wear volume formulae for, hemispherical acetabular cup liners used in total hip replacement. The geometric patterns of the wear surface were first classified, then wear volume formulae were derived by integral calculus. Based on the theoretical maximal and m
## Abstract The impact of femoral head surface roughness on wear of ฮณโirradiation sterilized (3 MRad in nitrogen, crosslinked) and nonsterilized (not crosslinked) UHMWPE acetabular cups has been evaluated. Gravimetric wear testing was performed in a hip joint simulator for 2 ร 10^6^ cycles. CoCrMo
The mechanisms of wear in ultra-high-molecular-weight polyethylene (UHMWPE) acetabular cups were investigated on both laboratory simulator-tested cups and a clinically retrieved component. Two different levels of wear process were identified: one characterized by the formation and detachment of plat
## Abstract In this study, a novel microโCTโbased technique for evaluating wear in retrieved acetabular liners was introduced and validated. Six UHMWPE acetabular components ranging in implantation time from 2.7 to 14.4 years were collected and evaluated with the use of a highโresolution microโCT s