病灶清除颗粒骨植骨治疗全髋关节置换术后髋臼周围骨溶解

目的 探讨全髋关节置换（THA)术后髋臼周围骨溶解的治疗方法及疗效.方法 对24例(24髋)THA术后髋臼周围骨溶解行骨溶解病灶清除、同种异体颗粒骨植骨、更换高交联聚乙烯内衬和股骨头假体.14例（14髋）髋臼杯稳定保留金属臼杯；2例（2髋）髋臼杯稳定卡环损坏,被迫取出稳定臼杯,行非骨水泥型髋臼杯翻修术；8例（8髋）髋臼杯松动行髋臼翻修术.采用Harris评分评价髋关节功能.通过X线片观察假体是否松动和移植骨愈合情况.结果 23例获得随访,1例失访,平均随访16个月（10～45个月）.Harris评分由术前(58±23)分（17～86分）,提高到末次随访时(92±12)分（80～98分）,差异有统计学意义(P＜0.05).术后无感染、脱位、静脉血栓形成等.X线片显示髋臼假体无松动和异位骨化,可见移植骨-宿主骨交界处有连续性骨小梁通过.结论 保留髋臼杯积极进行骨溶解病灶清除,同种异体颗粒骨植骨,更换聚乙烯内衬和股骨头假体可阻断骨溶解的进展；髋臼翻修,同种异体颗粒骨植骨,短期随访示移植骨愈合、髋臼杯稳定,临床效果满意.

Application of Curettage of Osteolysis Lesion and Morselized Bone Grafting for Treatments in Periprosthetic Acetabular Osteolysis After Total Hip Arthroplasty

Objective To evaluate the treatment and effect of periprosthetic acetabular osteolysis after primary total hip arthroplasty.Methods Twenty-four patients(24 hips) who were diagnosed as periprosthetic acetabular osteolysis after primary total hip arthroplasty were retrospectively reviewed.All patients underwent curettage of osteolysis lesion,allogeneic morselized bone grafting and exchange of high cross-linked polyethylene liner and femoral head prosthesis.Fourteen stable acetabular cups(14 patients) were res...