DYNA-LOK脊柱内固定系统在治疗腰椎退变性滑脱中的应用

APPLICATION OF DYNA-LOK SYSTEM IN THERAPY OF LUMBAR SPONDYLOLISTHESIS

31例保守治疗无效的腰椎退行性滑脱合并腰椎管狭窄的患者接受椎管减压、椎间植骨和DYNA LOK内固定手术。术后随访 6～ 2 8个月 ,平均 12 7个月。结果 31例中有 2 9例术后症状完全消失 ,其中 2例术后出现大小便功能障碍 ,考虑为马尾神经损伤所致 ,经 2个月治疗恢复。1例患者术前因两个节段腰椎滑脱而行三个节段腰椎固定术 ,术后残留部分腰痛症状 ;1例因合并颈胸椎狭窄而残留部分跛行。说明DYNA LOK内固定复位治疗腰椎滑脱复位满意 ,术后早期随访效果良好。

From July 1998 to May 2000, 31 cases of lumbar spondylolisthesis accompanied with lumbar stenosis were treated with spinal cord decompression, autograft interbody fusion and fixed by Dyna lok system. All the patients were followed up for 6 to 28 months, averaged 12 7 months. 29 of the 31 patients were recovered completely. 2 cases of cauda equina were recovered within 2 months. Lowback pain remained in 1 case of multi segements spondylolisthesis which had been fixed for 3 vertebrae. 1 patient accompanied with cervical spinal stenosis had some residual claudication. In conclusion, spondylolisthesis fixed with the Dyna lok system can achieve a satisfactory result.