[摘要]目的：探讨老年人髌骨骨折特点及采用钛镍记忆合金抓髌器内固定的疗效。方法：对1998年1月-2006年3月收治的62例老年人髌骨骨折，术前随机分成两组，A组30例，记忆合金抓髌器内固定。B组32例，克氏针钢丝张力带内固定。结果：62例均获随访，随访时间6-24个月，平均12个月。根据术后X线片及关节功能恢复情况评定疗效。A组：2例操作时有小骨折块部分碎裂，骨折全部愈合，无内固定松动。术后疗效评价优良率96%。B组8例术中出现骨折块固定时不同程度的碎裂，10例克氏针松动，其中4例克氏针退出并针道浅表皮肤感染。3例骨折不愈合。术后疗效评价优良率69%，A、B两组比较有明显差异,p<0.05。结论：记忆合金抓髌器对髌骨骨折的治疗，尤其是老年人骨质疏松骨折效果确切，较传统方法更具有优越性，可减少手术并发症的发生。

    [关键词] 老年人；髌骨骨折；记忆合金抓髌器；内固定

    Clinical Application of the Memory Alloy Patella Concentrator in treatment of Aged Patella Fractures

    FANG Song-qing,WU Yue,DAI Nong-lin,et al(Department of Surgery,Medical College,Nanhua University,Hengyang,421001,China)

    【Abstrict】Obiective:To study the clinical effects of memory alloy patella concetrators in the treatment of aged patella fracture. Methods:62 cases of patella fracture were randomly treated with two different materials,1)by memory alloy patella concentrator (A group,30 cases);and 2)by Kirschner pin and steel wire tension band(B group ,32 cases ).Result:All cases were available for an average duration of follow-up of 12 months (range,6-24months).The patients were evaluated by radiographic representations and articular function .In group A,among 30 cases the osseous union reached 100%, the excellent and good results were 96%.In group B, among 32cases ,nonunion were found in 3 cases ,the excellent and good results were 69%.There were statistic differences between these two groups .Conclusion :The use of memory alloy patella concentrators is appropriate for the treatment of patella fracture especially in aged person. Some complications caused by conventional internal fixations can be avoided . ......