AF系统加PROSPACE椎间融合器治疗腰椎滑脱症

目的 探讨AF系统加PROSPACE椎间融合器治疗腰椎滑脱症的早期疗效其应用价值。方法 对1999年～2002年21例手术治疗腰椎滑脱症的患者进行了回顾性分析，其中男13例，女8例，年龄25～66岁，平均42岁。合并腰椎间盘脱出7例，腰椎狭窄14例。对神经受压部位针对性的彻底减压，并采用AF椎弓根螺钉系统对滑脱椎体进行复位固定，以恢复脊柱的正常生理弯曲；从椎间后外侧置入填充自体骨PROSPACE进行椎间融合。结果 全部患者均获随访，随访时间3个月～3年，平均15个月，20例术后原腰腿痛等症状均消失，优良率达95．2％。结论 AF系统加PROSPACE椎间融合器可在有效地解除神经受压的基础上，恢复脊柱正常的生理弯曲，维持椎间隙高度，促进脊柱融合，是手术治疗腰椎滑脱症的一种可靠有效的方法。

TREATMENT OF LUMBAR SPONDYLOLISTHESIS WITH AF DEVICE FIXATION SYSTEM AND PROSPACE INTERBODY FUSION CAGE

Objective To discuss the clinical effect and the application of AF device fixation system and PROSPACE interbody fusion cage on treating lumbar spondylolisthesis.Methods Twenty-one cases of lumbar spondylolisthesis treated by operation from 1999 to 2002 were analyzed retrospectively (13 males and 8 females, 25-66 years old averaging 42 years). We had thorough decompression on the part of nerve compression and had replacement and fixation of the slippage vertebral body with the AF transpedicular screw/rod system so that the normal spine physiological curvature could be recovered, and then performed the posterolateral interbody fusion with implanting the PROSPACE filled with autograft bones. Results All the patients were followed up for 3 months to 3 years with an average of 15 months. The preoperation symptoms improved in 20 cases (95.2%).Conclusion The combination of AF device fixation system and PROSPACE interbody fusion cage can relieve effectively nerve compression, recover the normal spinal physiological curvature, maintain the height of interbody and promote the nerve fusion. It is reliable and effective in the treatment of spondylolisthesis.