多孔螺纹状钛合金融合器后路椎间植骨治疗腰椎滑脱

目的　观察多孔螺纹状钛合金融合器椎间融合结合椎弓根螺钉治疗腰椎滑脱的疗效。方法　1998年 7月～ 1999年 12月共采用后路腰椎全椎板减压、多孔螺纹状钛合金融合器行椎间融合、椎弓根螺钉内固定治疗腰椎滑脱 18例。年龄 4 3～ 6 2岁 ,其中 L4、57例 ,L5S1 11例。结果　 18例术后均获 6～ 12个月随访 ,平均 11个月。融合的 18个椎间隙 ,均获骨性愈合 ,临床症状均获缓解。无内固定松动、断裂及神经损伤等并发症。术后疗效优 13例 ,良 5例 ,其中 °滑脱 6例 ,优 5例 ,良 1例 ; °滑脱 11例 ,优 8例 ,良 3例 ; °滑脱 1例疗效良好。结论　多孔螺纹状钛合金融合器椎间融合结合椎弓根螺钉内固定是治疗腰椎滑脱的有效方法 ,临床疗效满意。

SURGICAL TREATMENT OF LUMBAR SPONDYLOLISTHESIS WITH CAGES AND TRANSPEDICAL SCREWS

OBJECTIVE: To observe the effect of threaded titanium cage and transpedical screw for the treatment of lumbar spondylolisthesis. METHODS: Eighteen patients with lumbar spondylolisthesis were adopted in this study. Among them, there were 8 males and 10 females, aged from 43 to 62 years old. Roentgenogram showed that there were 6 cases of I degree spondylolisthesis, 11 cases of II degree and 1 case of III degree. All patients were treated with cages for intervertebral fusion after total laminectomy and pedicle screws for the reduction. RESULTS: The cases were followed up from 6 to 12 months with an average of 11 months. The clinical results were excellent in 13 cases and good in 5 cases. All patients achieved successful fusion and bony union. There were no pedicle screw loosening or broken or peripheral nerve dysfunction in this series. CONCLUSION: This method has been proved to be an effective and reliable procedure for treatment of lumbar spondylolisthesis. It produces a high fusion rate and clinical success.