COMPARATIVE STUDY OF THE TYPES OF FIXATION IN ADOLESCENT IDIOPATHIC SCOLIOSIS

ABSTRACT Objective: To conduct a comparative study of the results obtained in the treatment of adolescent idiopathic scoliosis (AIS) with different types of fixations (traditional, selective and multiple), and to evaluate the correction of angular deformity in the frontal plane by the Cobb and sacral clavicular angle (SCA) methods. Methods: A study of a group of 278 patients with AIS who underwent selective, traditional, and multiple fixation surgeries. Results: Significant corrections of both the Cobb angle and the SCA were observed. Conclusions: In the multiple fixation surgeries there was a 100% correction between the preoperative and postoperative SCA values and a 50% correction in the traditional and selective fixations, a difference considered significant. Regarding the Cobb angle, the three fixations presented corrections between preop and postop with significant differences. Level of evidence III; Retrospective Study.

摘要
研究目的：对比不同固定术式（传统固定、选择性固定及多节段固定）治疗青少年特发性脊柱侧凸（Adolescent Idiopathic Scoliosis, AIS）的临床疗效，并通过Cobb角（Cobb angle）与骶骨锁骨角（Sacral Clavicular Angle, SCA）测量法评估冠状面角状畸形的矫正效果。
研究方法：纳入278例接受选择性、传统及多节段固定手术的青少年特发性脊柱侧凸患者开展研究。
研究结果：患者的Cobb角与骶骨锁骨角均获得显著矫正。
研究结论：多节段固定手术组的术前与术后骶骨锁骨角实现100%矫正，传统固定组与选择性固定组的矫正率仅为50%，该差异具有统计学意义；针对Cobb角而言，三种固定术式的术前术后角度矫正均存在显著差异。
本研究证据等级为III级，属于回顾性研究。