AO微创内固定系统治疗胫骨近端骨折

目的：探讨应用AO微创内固定系统（less invasive stabilization system，LISS）治疗胫骨近端骨折的临床效果。方法：2005年6月至2008年6月间，应用LISS治疗胫骨近端骨折32例，41-A2骨折5例，41-A3骨折8例，41-C1骨折7例，41-C2骨折6例，41-C3骨折6例。其中9例开放骨折均为Ⅱ-Ⅲ级，有6例患者为多发骨折患者，伤后4d（2-7d）应用LISS行内固定治疗。结果：所有患者随访6-18个月，骨折均连接，平均骨折愈合时间12周（8-18周），未出现钢板螺钉松动移位、骨折塌陷、复位丢失等。胫骨近端骨折32例，HSS评分优20例，良14例，可2例。膝关节活动范围90°-140°，所有患者膝关节行走无疼痛。结论：LISS能有效治疗各种分型的胫骨近端骨折，特别是对于骨质疏松患者具有更好的优越性。

Treatment of Proximal Tibia Fractures with Less Invasive Stabilization System

Objective： To explore the clinical effect of less invasive stabilization system（LISS） for treatment of proximal tibia fractures. Methods： From June 2005 to June 2008, LISS was used for 32 cases of proximal tibia fractures （according to the AO classification, type 41-A2 5 cases, type 41-A3 8 cases, type 41-C1 7 cases, type 41- C2 6 cases, type 41-C3 6 cases）. Among them, 9 patients with open fracture grade Ⅱ-Ⅲ 6 patients with multiple fractures. LISS fixation was performed at 4 days（2-7 days） after injury. Results： All the patients were followed up for 6-18 months,all the fracture were bony union after 12 weeks （8-18 weeks）. There was no screws or plates loose or reduction loss happened. HSS score was evallnated as excellent in 20 cases, good in 14 cases and fair in 2 cases. The range of movement of knee joint was 90°-140°, and no pain was noted. Conclusion： LISS can be effectively used to treat all types of proximal tibia fractures, especially for the osteoporosis patients.