LISS锁定钢板结合内侧支撑钢板治疗复杂股骨远端骨折

Internal Fixation of Complicated Distal Femoral Fractures with LISS Locking Plates and Medial Buttress Plates

目的探讨应用微创稳定系统（less invasive stabilization system,LISS）锁定钢板结合内侧支撑钢板治疗复杂的股骨远端骨折的方法和疗效。方法应用外侧LISS锁定钢板结合内侧支撑钢板切开复位内固定治疗股骨远端骨折19例,骨折按AO分型：A3型12例,C2型5例,C3型2例。采用HSS膝关节功能评分及影像学观察评价手术效果。结果所有病例均得到随访,平均随访18个月。所有患者骨折均达到一期愈合,未出现内固定物断裂及固定失败情况。骨折平均愈合时间为7.5（6~12）个月。根据Curylo法分级评分标准：所有患者在随访第12个月均达到坚固愈合。采用HSS膝关节功能评分标准：优4例,良10例,可3例,差2例,优良率为74%。结论 LISS锁定钢板结合内侧支撑钢板治疗复杂股骨远端骨折能够取得良好的临床疗效。

Objective To investigate the clinical effects of the treatment of complicated distal femoral fractures using LISS locking plates and medial buttress plates. Methods From February 2010 to March 2012, 19 cases of complicated distal femoral fractures were treated with LISS lateral locking plates and medial buttress plates. According to the AO fracture classification, the fractures were classified as type A3 in 12 cases, type C2 in 5 cases and type C3 in 2 cases. The clinical effects of the treatment was evaluated according to HSS knee function score system and radiograph. Results All the cases were followed up for an average of 18 months and they all got bony union in 6 ～ 12 months, average of 7.5 months. According to the criteria of Curylo Score, all of them acquired strong union. According to the criteria of HSS Knee Score, the results were as fol- lows： 4 excellent, 10 good, 3 fair and 2 poor. The excellent and good rate was 74%. Conclusions Open reduction and internal fixation with LISS locking plates and medial buttress plates in the treatment of complicat- ed distal femoral fractures provides a stable fixation and rapid bone union, and presents good clinical outcome.