Chmell M J, Poss R, Thomas W H, Sledge C B
Brigham and Women's Hospital, Boston, Massachusetts, USA.
J Arthroplasty. 1996 Apr;11(3):351-3. doi: 10.1016/s0883-5403(96)80093-3.
The authors performed a retrospective review of the survivorship of Hylamer (DePuy Dupont Orthopaedics, Warsaw, IN) acetabular liners following primary arthroplasty of the acetabulum. Between 1990 and 1992, 193 total hip arthroplasties were performed in which Hylamer acetabular liners were implanted. One hundred forty-three of these hips (74%) were available for clinical and radio-graphic follow-up evaluation after a minimum of 2 years. The mean follow-up period was 2.5 years. Five Hylamer liners have been revised for eccentric wear at a mean of 37 months postimplantation and one additional liner is scheduled to be revised at the 34-month follow-up evaluation (total, 4.2% failure rate due to wear). Survivorship of the Hylamer liner, with failure defined as revision due to eccentric wear, was calculated to be 86% (SE, 5.5%) at 4 years. The authors have discontinued the use of Hylamer acetabular liners because of this high early failure rate.
作者对髋臼初次置换术后Hylamer（美国印第安纳州华沙市DePuy Dupont骨科公司）髋臼衬垫的留存情况进行了回顾性研究。1990年至1992年期间，共进行了193例全髋关节置换术，其中植入了Hylamer髋臼衬垫。这些髋关节中有143例（74%）在至少2年后可进行临床和影像学随访评估。平均随访时间为2.5年。5个Hylamer衬垫因偏心磨损在植入后平均37个月时进行了翻修，另有1个衬垫计划在34个月的随访评估时进行翻修（因磨损导致的失败率总计为4.2%）。将因偏心磨损导致翻修定义为失败，Hylamer衬垫在4年时的留存率经计算为86%（标准误为5.5%）。由于这种较高的早期失败率，作者已停止使用Hylamer髋臼衬垫。
