SF与GSS内固定治疗腰椎滑脱的比较

Comparison of SF and GSS internal fixation in treating lumbar spondylolisthesis

目的 比较SF、GSS两种椎弓根内固定系统治疗腰椎滑脱的手术疗效。方法 自1996年5月至2005年9月应用SF、GSS椎弓根内固定系统减压、复位、固定后,采用后外侧植骨融合,治疗腰椎滑脱患者40例,其中SF组18例,GSS组22例,比较两组的手术时间与出血量、手术疗效与并发症、滑脱椎体复位率与复位丢失率、植骨融合率。结果 随访9～122个月,平均19个月,两组患者在手术时间与出血量、手术疗效与并发症、滑脱椎体复位率与复位丢失率,差异无统计学意义,但SF组断钉发生率高,GSS组断棒发生率高,两组之间差异有统计学意义（P〈0.01）。结论 SF、GSS两种椎弓根内固定系统治疗腰椎滑脱均能取得满意的临床疗效。SF椎弓根螺钉易折断,GSS棒易折断。

Objective To compare the effective of SF and GSS internal fixation in treating lumbar spondylolisthesis. Meth- ods From December 1996 to September 2005, we used the methods of SF and GSS internal fixation combined with posterior - lateral lumbar interbody fusion to treat the 40 patients with lumbar spondylolisthesis, including SF group （ 18 cases）, GSS group （22 cases）. Compare the two groups＇data, including blood loss, clinical results, complications, reduction rate, reduction loss rate and fusion rate. Results All patients were followed up for 9 - 122 months, The mean follow - up was 19 months. The outcome of blood loss, clinical results, complications, reduction rate, reduction loss rate between two groups had no apparente difference. But there were high screw broken rate in SF group and high rod broken rate in GSS group, there had apparente difference between the two groups （ P 〈0.01 ）. Conclusion Both of two internal fixation systems of SF and GSS used in the treatment of lumbar spondylolisthesis can get good clinical result, SF prone to broken screw, GSS prone to broken rod.