Middle-term results of threaded acetabular cups - High failure rates five years after surgery

被引:48
作者
Simank, HG
Brocai, DRC
Reiser, D
Thomsen, M
Sabo, D
Lukoschek, M
机构
[1] Orthopaedic Clinic, University of Heidelberg, 69118 Heidelberg
来源
JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME | 1997年 / 79B卷 / 03期
关键词
D O I
10.1302/0301-620X.79B3.7273
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
We report our results using three different threaded acetabular components (Mecring A, Mecring B and Weill) in 715 hips with a follow-up of between one and ten years (median: 99.1, 56.5, 38.3 months, respectively), All cups were implanted with one type of cementless stem. The clinical results were good or acceptable in about 70% of the hips, but signs of loosening with radiolucency and/or migration were found in 10.1%. Radiological evidence of loosening did not correlate significantly with the clinical outcome, Pain was not a reliable indicator of loosening and its sometimes allowed severe osteolysis to Twenty-five hips were revised (3.5%) for aseptic loosening of the acetabular component, Kaplan-Meier estimates of the cumulative rate of failure showed a rapid increase five years after the initial operation, but no significant correlation with gender, age or weight. The high rate of failure indicates that further use of these acetabular components cannot be recommended, Annual radiographs are required to assess osteolysis even if the patients are free from pain.
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页码:366 / 370
页数:5
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