Department of Orthopaedic Surgery, Huddinge University Hospital, Karolinska Institute, Huddinge, Sweden.
Eur Spine J. 1993 Aug;2(2):99-103. doi: 10.1007/BF00302711.
The effect of Cotrel-Dubousset instrumentation (CDI) on the three-dimensional spinal deformity in 24 consecutive patients with idiopathic scoliosis was investigated by posteroanterior and lateral radiographs and by computed tomography preoperatively, postoperatively, and at a mean follow-up of 3.2 years (range 2.0-5.3 years). At follow-up the mean Cobb angle was decreased by 73%, and the translation of the apical vertebra was significantly decreased by 33%. The sagittal contour was significantly improved with thoracic kyphosis T5-12 increased by 46% (6.9 degrees) and lumbar lordosis L1-5 increased by 28% (10.3 degrees) at follow-up. The sagittal diameter was significantly improved by 5 mm at follow-up. Although the vertebral rotation and the size of rib hump was improved postoperatively, this was followed by significant loss of correction, and at follow-up the vertebral rotation and the size of rib hump were not significantly better than preoperatively. The study indicates that while CDI improves the coronal and sagittal plane deformity permanently, the effect on vertetebral rotation and the rib hump deteriorates with time.
后路 Cotrel-Dubousset 器械固定（CDI）对 24 例特发性脊柱侧凸患者的三维脊柱畸形的影响，通过术前、术后的前后位和侧位 X 线片和计算机断层扫描进行评估，并在平均 3.2 年（2.0-5.3 年）的随访时进行评估。随访时，Cobb 角的平均降低了 73%，顶椎的平移明显减少了 33%。矢状轮廓明显改善，T5-12 段胸曲增加了 46%（6.9 度），L1-5 段腰曲增加了 28%（10.3 度）。随访时矢状直径明显改善了 5 毫米。虽然术后椎体旋转和肋隆突的大小得到改善，但随后出现明显的矫正丢失，随访时椎体旋转和肋隆突的大小与术前相比并无明显改善。研究表明，虽然 CDI 能永久性地改善冠状面和矢状面的畸形，但对椎体旋转和肋隆突的影响会随着时间的推移而恶化。
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