Hauser R, Jacob H A, Schreiber A
Department of Orthopaedics, University of Zurich, Switzerland.
Bull Hosp Jt Dis. 1996;54(3):180-5.
The results of 387 primary hip arthroplasties in which an uncemented Balgrist hip socket had been used in 346 patients were reviewed after a maximum of six years. The mean age of the patients at the time of operation was 54.3 years. Acetabular deficiency according to the AAOS classification was found in 21% of these primary arthroplasties. Three acetabular components (0.77%) had been revised. Using Kaplan-Meier survivorship analysis, with the use of prosthesis revision as the endpoint of failure, the survival rate at five years was found to be 99%. Four acetabular components (1%) had migrated and lysis of bone around the component in zone III occurred in one patient (0.26%). The data suggest that the unique socket design of the Balgrist hip socket (consisting of two tapered parts: an expansive outer titanium-alloy split ring and an insert of polyethylene) provides very satisfactory clinical results with various acetabular defects.
对387例初次髋关节置换术的结果进行了回顾，其中346例患者使用了非骨水泥型Balgrist髋臼杯，随访时间最长为6年。患者手术时的平均年龄为54.3岁。在这些初次置换术中，根据美国矫形外科医师学会（AAOS）分类法发现髋臼缺损的占21%。有3个髋臼部件（0.77%）进行了翻修。采用Kaplan-Meier生存分析，以假体翻修为失败终点，发现5年生存率为99%。有4个髋臼部件（1%）发生了移位，1例患者（0.26%）在III区出现了部件周围骨质溶解。数据表明，Balgrist髋臼杯独特的髋臼杯设计（由两个锥形部分组成：一个扩张性的外部钛合金开口环和一个聚乙烯内衬）在各种髋臼缺损情况下均能提供非常令人满意的临床效果。
