Sarmiento A, Ebramzadeh E, Gogan W J, McKellop H A
Department of Orthopaedics, University of Southern California, School of Medicine, Los Angeles 90007.
J Bone Joint Surg Am. 1990 Dec;72(10):1470-6.
The long-term performance of a total of 712 Charnley and STH prostheses was evaluated as a function of the patient's age (older than fifty years or younger than fifty years) and of the underlying disease (osteoarthrosis, rheumatoid arthritis, or avascular necrosis). In patients who were older than fifty years, there were lower incidences of continuous cement-bone radiolucency about the acetabular component (p = 0.04), wear of the polyethylene acetabular cup (p = 0.03), and resorption of the calcar (p = 0.03). However, larger percentages of younger patients had rheumatoid arthritis or avascular necrosis. In the cohort of patients who had osteoarthrosis, the performance of the prosthesis did not differ significantly between older and younger patients; therefore we attributed the differences that were observed to the disease--that is, to rheumatoid arthritis or avascular necrosis.
对总共712个Charnley和STH假体的长期性能进行了评估，评估依据为患者年龄（50岁以上或50岁以下）以及基础疾病（骨关节炎、类风湿性关节炎或缺血性坏死）。在50岁以上的患者中，髋臼部件周围连续的骨水泥-骨透亮区发生率较低（p = 0.04），聚乙烯髋臼杯磨损发生率较低（p = 0.03），股骨距吸收发生率较低（p = 0.03）。然而，年轻患者中类风湿性关节炎或缺血性坏死的比例更高。在骨关节炎患者队列中，假体性能在老年患者和年轻患者之间没有显著差异；因此，我们将观察到的差异归因于疾病——即类风湿性关节炎或缺血性坏死。
