经腰椎椎弓根截骨并椎弓根钉-棒系统治疗强直性脊柱炎后凸畸形

Transpedicle spinal osteotomy and pedicle screw-rod system in correction of kyphosis following ankylosing spondylitis

目的探讨强直性脊柱炎后凸畸形的外科治疗效果。方法对20例强直性脊柱炎后凸畸形患者行L2或L3椎弓根截骨矫正并椎弓根钉-棒系统固定。结果全部获随访，时间1～3年。患者后凸畸形均明显改善，Cobb角术前45°～70°，术后8°～20°；能平视行走和仰卧休息；截骨处均融合。结论经L2或L3椎弓根截骨并椎弓根钉-棒系统治疗强直性脊柱炎后凸畸形，矫形效果好，安全可靠，是理想的治疗方法。

Objective To study the surgical treatment on kyphosis of ankylosing spondylitis. Methods 20 cases with kyphosis of ankylosing spondylitis were undergone transpedicle spinal osteotomy in L2 or L3 , and internal fixation using pedicle screw-rod system. Results All cases were followed up for 1 - 3 years. The kyphosis.of all cases was corrected. All patients could walk in the level eyes , and sleep on the back. Osteotomy got bony fusion. Preoperative Cobb angle was 45°～ 70°, and postoperative Cobb angle was 8°～ 20°. Conclusions It is effective and safe to treat kyphosis of ankylosing spondylitis by transpedicle spinal osteotomy and internal fixation using pedicle screw-rod system.