Primary Total Hip Arthroplasty With Duraloc Cup in Patients Younger Than 50 Years: A 5- to 7-Year Follow-Up Study

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• 作者：Tian Jialiang ; Mu Zhongyou ; Pei Fuxing ; Zhou Zongke ; Shen Bin ; Yang Jing
• 关键词：total hip arthroplasty ; press-fit ; Duraloc cup ; young patients ; osteolysis
• 刊名：The Journal of Arthroplasty
• 出版年：2009
• 出版时间：December 2009
• 年：2009
• 卷：24
• 期：8
• 页码：1184-1187
• 全文大小：244 K

文摘

We evaluated the clinical and radiographic results of 67 (64 patients) cementless Duraloc-300 cups for young active patients after a mean follow-up period of 6.2 years. The preoperative mean Harris hip score improved from 46.24 to 96.5 points at 5 years. The survivorship of the cup, using radiographically confirmed aseptic loosening as the end point, was 100 % at 5 years. The mean rate of liner wear was 0.125 mm/y (00-0.39 mm/y). Acetabular osteolysis was found in 14 % (9 hips) of the 67 hips, and the osteolysis is related to polyethylene wear (P = .0024) and sex (P = .001). Although there was no aseptic loosening of the components, there was a high rate of liner wear of the polyethylene liner and acetabular osteolysis.