应用cup-cage技术重建Paprosky ⅢB型髋臼骨缺损的早期疗效

被引:7
作者
穆文博
胥伯勇
郭文涛
纪保超
阿斯哈尔江·买买提明
曹力
机构
[1] 乌鲁木齐,新疆医科大学第一附属医院关节外科
关键词
关节成形术, 置换, 髋; 再手术; 髋臼;
D O I
暂无
中图分类号
R687.4 [关节手术];
学科分类号
100220 [骨科学];
摘要
目的探讨cup-cage技术在伴有严重骨缺损的髋臼侧翻修术中应用的早期疗效。方法 2013年10月至2016年5月在髋关节翻修中采用cup-cage技术重建PaproskyⅢB型髋臼骨缺损16例(16髋), 男6例, 女10例;年龄40~84岁, 平均62.6岁。1例骨盆连续, 15例骨盆不连续。翻修原因为无菌性松动14例, 假体周围感染合并假体松动2例。1例既往有2次髋关节翻修史。使用多孔钽金属骨小梁翻修系统(髋臼杯+髋臼加强环)11例, 钽金属骨小梁髋臼杯+髋臼重建环2例, R3多孔髋臼外杯+髋臼重建环3例。2例假体周围感染患者均行一期翻修术。随访时以Harris髋关节评分评估疗效, 通过X线片观察有无假体松动及髋关节旋转中心位置的改变。结果手术时间90~150 min, 平均117 min。术中出血600~1 500 ml, 平均900 ml。16例均获得随访, 随访时间6~36个月, 平均18.7个月。髋关节旋转中心高度由术前(42.00±12.18)mm减小至术后(22.75±8.44)mm, 水平距离由术前(26.81±7.61)mm增加至术后(32.50±6.51)mm, 差异均有统计学意义(t=8.249, P<0.001;t=-4.786, P<0.001)。术后患侧旋转中心轻度上移, 与健侧比较差异有统计学意义(t=-3.478, P=0.003);水平位置与健侧比较差异无统计学意义(t=1.235, P=0.023)。Harris髋关节评分由术前(45.63±11.68)分提高至末次随访时的(75.78±9.12)分, 差异有统计学意义(t=-12.157, P<0.001)。1例患者在术后第5天发生髋关节假体脱位, 予以麻醉下闭合复位。无一例出现血管、神经损伤及切口相关并发症。无一例出现假体周围感染, 2例因感染行髋关节翻修的患者均未出现感染复发。随访期间假体位置良好, 无假体(髋臼杯或髋臼加强环)松动及螺钉松动、断裂。结论对PaproskyⅢB型髋臼骨缺损, 尤其是骨盆不连续时, 采用cup-cage技术进行翻修, 可重建髋关节旋转中心, 恢复髋关节功能, 假体初始稳定性好。
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