Abstract
目的 评价微创内固定系统(LISS)治疗股骨远端和胫骨近端严重粉碎性骨折的近期疗效.方法自2004年2月~2005年2月应用LISS治疗63例复杂性膝关节周围骨折,其中股骨远端粉碎性骨折29例,胫骨近端粉碎性骨折34例,手术均严格按照LISS操作程序进行.术后4周内每周随访1次,以后每月随访一次.结果所有患者均获得随访,平均随访11.5个月(6~17个月).所有患者术后均无需石膏外固定,第1天始渐进膝关节主、被动功能训练,完全负重时间为14.3周(11~17周).A、C型骨折术后4周膝关节平均活动范围分别为113°(90°~140°)和101°(60°~130°).X线所见:52例(82.5%)于术后3周左右可见骨痂形成,骨折愈合时间平均为12.1周(10~14周),63例中57例术后骨折对线满意,6例出现成角畸形,其中4例在矢状面上成角10°,2例在冠状面上成角9°.全组无感染、延迟愈合、断钉、断钢板等并发症.手术时间平均为45 min(30~60 min),切口长度平均为5.5 cm(4~6 cm).按照HSS评分:优47例(74.6%)、良14例(22.2%)、可2例(3.2%).结论微创内固定系统具有创伤小、骨折愈合快、固定牢靠、可早期功能锻炼等优点,近期疗效满意,该法确系膝关节周围严重粉碎性骨折的最佳疗法之一。
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