Nachemson A, Nordwall A
J Bone Joint Surg Am. 1977 Jun;59(4):504-8.
Of 206 patients less than twenty years old with idiopathic scoliosis of 40 to 90 degrees treated with Harrington distraction rods and fusion, ninety had preoperative Cotrel traction and 116 received no immediate preoperative treatment. There was no significant difference between these two groups in terms of the immediate surgical correction obtained. Cotrel traction therefore did not improve the results of treatment of idiopathic scoliosis of this degree in this age group.
在206例年龄小于20岁、特发性脊柱侧凸角度为40至90度并接受哈林顿撑开棒及融合治疗的患者中，90例术前接受了科特雷尔牵引，116例未接受术前即刻治疗。两组在即刻手术矫正方面无显著差异。因此，科特雷尔牵引并未改善该年龄组这种程度的特发性脊柱侧凸的治疗效果。
