Wallis棘突间动态稳定系统治疗腰椎退变性疾病的短期疗效观察

Early evaluation of Wallis interspinous dynamic stabilization system in treatment of lumbar degenerative disease

目的研究wallis棘突间动态稳定系统（简称Wallis系统）在腰椎退变性疾病治疗中的短期疗效。方法采用Wallis系统治疗腰椎间盘突出症和腰椎管狭窄症患者21例（23个间隙），L3～44个间隙，L4～519个间隙。观察手术操作过程、手术用时、术中出血量及术后早期恢复情况，并在手术前后进行疼痛视觉模拟法（VAS）评分及Oswestry功能障碍指数（ODI）评分。结果所有患者均获7～18个月随访，平均随访（12．5±0．4）个月，术后7dVAS评分由术前的（7．5±1．5）分降至（2．5±0．5）分，ODI评分由术前的（40．0±2．O）分降至（23．0±1．5）分（P〈0．01）。结论Wallis系统治疗腰椎退变性疾病手术操作安全简单，组织损伤小，早期效果良好。

Objective To evaluate the early effect of Wallis interspinous dynamic stabilization system （Wallis system） in treatment of lumbar degenerative disease. Methods From January 2008 to January 2009,21 patients（23 intervertebral spaces ） with early lumbar disc herniation and lumbar spinal stenosis were treated with Wallis system. Four intervertebral spaces of L3-4, 19 intervertebral spaces of L4-5. Observed the time of total operation and implantation, the blood loss, and early recovery. The patients＇ visual analogue scale （VAS） and Oswestty disability index （ODI） scores were evaluated before and after operation. Results All patients were followed up for average （ 12.5 ±0.4） months （7-18 months） after operation. The VAS and ODI scores at 7 days after operation dropped from （7.5 ± 1.5 ）, （40.0± 2.0） scores before operation to （2.5 ± 0.5）, （23.0± 1.5） scores （P〈 0.01 ）. Conclusion It is safe and easy to use Wallis system in the treatment of lumbar degenerative disease, with the advantage of mini-invasion and early effect.