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目的：对比分析国产羟基磷灰石涂层髋臼假体与进口生物型假体的6年临床疗效。方法：对比分析60例使用羟基磷灰石涂层髋臼假体行全髋置换术的患者及20例采用进口生物型髋臼假体的患者随访影像学评估及髋关节功能评估，进行疗效对比。结果：本组均获得6年随访，末次随访国产髋关节Harris评分平均92分，进口髋关节评分平均90分。结论：两组髋臼假体的6年生存率无明显差异，国产假体采用羟基磷灰石涂层可以增加髋臼假体的固定，但可能同时也是引起骨溶解的诱因。“,”Objective To Comparison and analysis of 6 years clinical curative effect of total hip arthroplasty with Chinese hydroxyapatite-coated acetabular cup,compared with an international acetabular cup.Methods Sixty consecutive cases treated by total hip arthroplasty with Chinese hydroxyapatite-coated acetabular cup and twenty cases with international hydroxyapatite-coated acetabular cup were investigated retrospectively.Results At the latest follow-up, the mean Harris hip score was 92 points among the 60 hips and the mean Harris hip score was 90 points among the 20 hips.Conclusion There was no statistical difference in survival rate between Chinese hydroxyapatite-coated acetabular cup and international acetabular cup. Hydroxyapatite coating in Chinese cups can increase the acetabulum prosthesis fixation,while hydroxyapatite coating maybe the cause of osteolysis.