Zweymtiller双锥面螺旋臼治疗Ⅲ、Ⅳ型髋关节发育不良继发骨关节炎早期疗效

目的探讨使用Zweymtiller双锥面螺旋臼治疗Ⅲ、Ⅳ型髋关节发育不良（DDH）继发骨关节炎的早期疗效。方法使用Zweymtiller双锥面螺旋臼假体及sL柄治疗16例DDH继发骨性关节炎患者（18髋），髋臼假体均安放于真臼位置，其中4例5髋Ⅲ型行髋臼植骨；6例7髋Ⅲ型未行髋臼植骨；6例Ⅳ型未行髋臼植骨，采用转子下短缩截骨髋关节置换治疗。结果患者均获随访，时间10～40（22．6±9．1）个月。患者术后疼痛均基本消失。Harris评分：术前22—61（43．5±5．2）分，末次随访时72～97（85．3±6．7）分。1例术后出现股神经损伤症状，6个月时症状基本消失。结论使用Zweymtiller螺旋臼假体治疗DDH继发骨性关节炎，关节功能可以达到良好的恢复，早期效果满意。

Early curative effect of total hip arthroplasty using Zweymiiller system for severe osteoarthri- tis secondary to Crowe-Ⅲ and IV developmental dysplasia hip

Objective To evaluate the early efficiency of THA using Zweymtiler system in the treatment of severe os- teoarthritis secondary to Crowe-m and IV DDH. Methods 18 THA procedures useing Zweymtiller hip implant and SL femoral stem were performed in 16 patients with severe osteoarthritis secondary to DDH. Every acetabular compo- nent was placed in the true acetabulum. 4 patients with 5 hips in type-llI were treated with bone grafting in acetabu- lum, 6 patients with 7 hips in type-1I without bone grafting. 6 patients with 6 hips in type-IV were treated with femo- ral osteotomy but without bone grafting in acetabulum. Results All patients were followed up for lO - 40 （22.6 ± 9. 1 ） months. The Harris score was 22 - 61 （43.5 ± 5.2 ） preoperation and 72 - 97 （ 85.3 ± 6. 7 ） in the time of fol- low-up. The pain was relieved after operation. Femoral nerve paralysis was detected in one case and recovered after 6 months. Conclusions THA using Zweymiiller hip implant is a good treatment method for osteoarthritis secondary to DDH. The early clinical outcomes were satisfactory.