腰椎下半椎板揭盖回植技术在腰椎退变疾病后路手术中运用的临床研究

目的探讨一种新的后路椎板减压方式——腰椎下半椎板揭盖回植法的临床运用效果。方法30例退行性腰椎疾病患者行后路手术，显露腰双侧椎板后在椎板脊近端大约5～6mm处用骨刀垂直于脊柱的轴线横断椎板，下半椎板游离从而方便后续的减压、融合的手术操作，术毕将修正后的椎板覆盖原位再行固定。结果手术顺利、无神经损伤等并发症，6个月后复查，所有患者覆盖后的椎板愈合良好，30例中治愈23例，显效5例，有效2例，无效0例，JOA评分术后较术前明显改善（P〈0．05）。结论下半椎板揭盖回植技术安全有效，有利于术者进行彻底的神经减压、椎间融合手术操作，回植后后路结构保存。该技术是腰椎疾病后路手术中减压的良好方法。

Clinical Study of Application of Inferior Half Lamina Uncover-Recovered Technique in Posterior Operation of Lumbar Degeneration

Objective To study the clinical outcomes of inferior half lamina uncover-recovered technique in posterior surgery of lumbar degenerative diseases. Methods 30 patients who suffered lumbar degenerative diseases were treated posterior operation. Inferior half lamina was intersected from 5-6 nun dis-tance to upper lamina ridge and dissociated, so it was convenient for decompression and intervertebral fusion. After that, the intersected lamina was recovered to its former position. Results The technique is applied safely and efficiently. No serious complication was oberversed. Over 6 months' follow-up, 27 patients were cured, 5 cases notable valid, 2 cases valid. And the JOA scores of post operation were improved significantly (P<0.05) . Conclusion This technique is safe and effective. It is beneficial for of nerve root decompression and intervertebral fusion and preserving posterior structures. The technique is a good decompression method in posterior operation of lumbar degeneration diseases.