后路椎间融合器结合新型椎弓根钉系统治疗腰椎滑脱症

目的 探讨纯钛多孔涂层后路椎间融合器结合新型椎弓根钉系统对腰椎滑脱症的治疗效果。方法 33例腰椎滑脱症病人,采用后路全椎板切除减压、纯钛多孔涂层后路椎间融合器行椎间融合、新型椎弓根钉系统内固定治疗。结果 33例术后均随访,时间6~36个月,平均18.6个月。本组患者术后无神经损伤和切口感染,动态摄片观察无融合器移位、椎弓根螺钉松脱、断裂等并发症。按Brantigan评价标准评定结果:优21例、良10例、可2例、差0例。结论 纯钛多孔涂层后路椎间融合器结合新型椎弓根钉系统治疗腰椎滑脱症,具有椎管减压充分、椎体复位好、术后能立即改善疼痛症状、立即稳定椎体、病人可早期下床等优点,是一种治疗腰椎滑脱症较理想的方法。

Posterior lumbar intervertebral fusion device and a new transpedical screw system for treatment of lumbar spondylolisthesis

Objective To observe the effect of posterior lumbar intervertebral fusion (PLIF) device and a novel transpedical screw system for the treatment of lumbar spondylolisthesis. Methods Thirty-three patients with lumbar spondylolisthesis were treated with PLIF device for intervertebral fusion after total laminectomy and internal fixation with the novel transpedical screw system. Results The patients were followed up for 6 to 36 months with an average of 18.6 months. Nerve injuries and infection of the incisions occurred in none of the cases postoperatively, and no cases exhibited PLIF device displacement or transpedical screw loosening or breaking, nor were other complications seen in this group. The clinical results were excellent in 21 cases, good in 10 cases, and acceptable in 2 cases according to the standard of Brantigan. Conclusion PLIF device and new transpedical screw system constitute good treatment modalities for lumbar spondylolisthesis, with such merits as full decompression of the spinal canal, good restoration of the vertebral body, immediate pain relief and reliable fixation of the vertebral body to allow early force loading postoperatively, and are therefore suitable for treating lumbar spondylolisthesis.