新型张力带系统治疗髌骨下极粉碎性骨折

Surgical treatment of inferior pole comminuted fractures of patella with new type tension band

目的：探讨钛缆加空心钉结合新型垫片内固定治疗髌骨下极粉碎性骨折的疗效。方法：2011年12月至2013年12月采用直径3．0 mm空心钉、钛缆与新型垫片组成的新型张力带系统内固定治疗髌骨下极粉碎骨折21例，其中男10例，女11例，平均年龄54岁（21～79岁），患者的受伤机制均为滑倒跪地伤。结果：手术时间57～197 min（平均89 min），术后不需外固定，术后2周加强膝关节功能练习。术后随访时间为7～31个月（平均18个月），骨折愈合时间8～12周（平均10．5周）。 Bostman评分20～30分（平均27分），其中优10例，良11例。所有患者无并发症出现。结论：钛缆加空心钉结合新型垫片的新型张力带系统是治疗髌骨下极粉碎性骨折的有效方法，固定可靠，操作简单，可早期功能练习，有较好的临床应用价值。

Objective：To study the effectiveness of inferior pole fracture of patella treating by the new tension band.Methods：From Dec.2011 to Dec.2013, 21 patients with inferior pole fracture of patella were treated with the new tension band which consisted of cannulated screw, titanium cable and shims. There were 21 patients[10 males, 11 females, the average age was 54 years（21 to 79）],of whom,all were“fell on knees”.Results：The average operation time was 89 min （57-197 min）,the follow-up visits were done from 7-31 months （ average 18 months） , the bone healing time was from 8-12 weeks （average 10.5 weeks）.The post operation assessment was done by Bostman score, from 20 -30 （average 27）,10 excellent,and 11 good.No complication occurred.Conclusion：The new tension band is the effective treatment for inferior pole fracture of patella.The internal fixation is reliable, it is simple to operate, and patients can take exercises as early as possible.Therefore, the new tension band has a bet-ter clinical value.