Three-dimensional polyethylene wear of a press-fit titanium prosthesis
1997; Elsevier BV; Volume: 12; Issue: 3 Linguagem: Inglês
10.1016/s0883-5403(97)90021-8
ISSN1532-8406
AutoresP. Devane, J. G. Horne, Kerryn Martin, G.J. Coldham, B. Krause,
Tópico(s)Orthopedic Infections and Treatments
ResumoBetween 1985 and 1990, 108 consecutive Harris-Galante I (Zimmer, Warsaw, IN) total hip arthroplasties were performed by four surgeons at a single hospital. At the time of follow-up evaluation, 80 hips were available for review. The mean rate of linear wear was 0.15 mm/y, mean rate of three-dimensional femoral head displacement was 0.21 mm/y, and mean rate of volumetric wear was 121 mm3/y. Eight hips (10%) in this series had radiologic osteolysis around either the femoral or acetabular component. A significantly greater volumetric wear rate was found in patients who were younger, those with a higher activity level, those who received a 32-mm-diameter femoral head, and those with vertical orientation of their acetabular component. No relationship could be made with patient weight, gender, Harris hip score, or cup diameter.
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