【摘要】 [目的]探讨微创固定系统(less invasive stabilization system,LISS)倒置治疗股骨转子下骨折的治疗方法和临床疗效。[方法]2007年10月～2009年5月,采用倒置LISS治疗31例股骨转子下骨折。本组男23例,女8例;年龄27～83岁,平均48.6岁。致伤原因:交通伤12例,坠落伤6例,压砸伤4例,摔伤9例。骨折按Seinshei-mer分型,ⅡC型4例,ⅢA型12例,ⅢB型6例,Ⅳ型6例,Ⅴ型3例。手术方法:麻醉满意后利用牵引床对股骨转子下骨折进行闭合复位,此后通过大转子外侧切口将对侧的LISS钢板倒置插入,骨折复位满意、钢板位置适宜后,在瞄准臂引导下分别在远、近骨折段钻入4～5枚锁定螺钉。[结果]本组手术时间35～80min,平均50min;术中出血60～150ml,平均失血量90ml。31例患者随访平均15.6个月,术后平均18.2周X线片显示明显骨痂形成或骨折线消失。无内固定松动及深部感染。患肢髋关节平均活动度为:屈曲115°,外旋35°,内旋15°,内收15°,外展36°。采用改良Harris髋关节评分法进行评估,平均92.6分(82～100分),优24例,良7例,无疗效不良病例。[结论]倒置LISS微创固定股骨转子下骨折效果良好,具有固定可靠、手术创伤小等优点,是一种治疗股骨转子下骨折的有效方法。更多还原

【Abstract】 [Objective]To explore the technique and results of reverse less invasive stabilization system(LISS) plating for subtrochanteric femur fractures.[Method]From October 2007 to May 2009,31 cases of fresh subtrochanteric femur fractures were treated with reverse LISS. There were 23 males and 8 females,with an average age of 48.6 years (range 27 to 83 years). Twelve injuries were the result of a traffic accident,six,a fall from a greater height,four,a crush injury and nine,a fall from a standing height. According to Seinsheimer classification,four fractures were type ⅡC,twelve ⅢA,six ⅢB,six Ⅳ and three Ⅴ. After anesthesia was effectively administered,subtrochanteric fracture was reduced indirectly with patient on a fracture table. Then,the reverse LISS plate was inserted through a lateral incision of the greater trochanter between the lateral vastus muscle and the periosteum. Guided by the aiming arm,4 to 5 screws were inserted through stab incisions into the proximal and distal fragments,respectively. [Result]Operative time averaged 50 minutes (range,35-80 minutes) and estimated blood loss averaged 90 ml(range,60-150 ml). Thirty-one patients were available for evaluation with an average follow-up of 15.6 months. All fractures healed at a mean of 18.2 weeks (range 13 to 32 weeks). There was no failed fixation,or deep infection. Average range of motion of the hip joint was recorded as follows:flexion 115°,external rotation 35°,internal rotation 15°,adduction 15°,and abduction 36°. According to the modified Harris hip score,scores ranged from 82 to 100 (average,92.6),and there were 24 excellent and 7 good results.[Conclusion]Reverse LISS plating yields good results in subtrochanteric femur fractures,with stable fixation and minimal invasive procedure.更多还原