Surface structure of retrieved ICLH femoral cups.
We characterized the surface structure of 21 retrieved femoral ICLH cups, as an indirect measure of surface damage, with an optical scanner specially developed for surface roughness measurements. 3 unused cups were measured and served as controls. The mean insertion time was 10 (5-15) years. 5 areas on each cup were measured, 1 on the top and 4 at the edge. The mean value of 3 different, commonly used, surface roughness parameters was calculated for the edge measurements. We found no correlation between the surface topography and clinical patient data such as age, body-weight, head-shaft angle, implantation time and wear of the polyethylene socket.
Wennerberg
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A
Department of Biomaterials/Handicap Research, Institute for Surgical Sciences, Göteborgs University, Sweden.
Røkkum
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M
Reigstad
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A
Albrektsson
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T
D000368:Aged; D000369:Aged, 80 and over; D001843:Bone Cements; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008422:Materials Testing; D018613:Microscopy, Confocal; D008875:Middle Aged; D015999:Multivariate Analysis; D011095:Polyethylenes; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012044:Regression Analysis; D013499:Surface Properties; D014800:Vitallium
D001843:Bone Cements; D011095:Polyethylenes; D014800:Vitallium