Satisfactory immediate spontaneous correction may not mean satisfactory final results for moderate TL/L curves after selective thoracic fusion in AIS patients

BMC Musculoskeletal Disorders

Research

Jianguo Zhang¹  Bin Xiao²  Yanbin Zhang²  Yonggang Xing²  Da He²  Bo Liu²  Jing Bai³ 

[1] Department of Orthopedics of Peking Union Medical College Hospital, 1Shuai Fu Yuan, 100730, Beijing, P.R. China;Department of Spine Surgery, Beijing Jishuitan Hospital, Xicheng District Xinjiekou No. 31 East Street, 100035, Beijing, P.R. China;Department of Trauma and Joint, The Third Affiliated Hospital of Beijing University of Traditional Chinese Medicine, Chaoyang District Anwai Xiaoguan Street No. 51, 100029, Beijing, P.R. China;

关键词: Adolescent idiopathic scoliosis;    Selective thoracic fusion;    Risk factor;    Correction loss;    Mismatch;   

DOI  :  10.1186/s12891-023-06591-8

 received in 2022-11-14, accepted in 2023-06-01,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundFew studies have focused on the chronic spontaneous behavior of the unfused TL/L curve during follow-up. The purpose of the present study was to explore the behavior of the unfused TL/L curve during a long-term follow-up to identify the risk factors for correction loss.MethodsSixty-four age-matched female AIS patients undergoing selective thoracic fusion were enrolled. Patients were divided into 2 groups according to whether there was correction loss. Risk factors for correction loss of the unfused TL/L curves were analyzed. The relationship and difference between the immediate postoperative thoracic and TL/L Cobb angles were explored.ResultsThe TL/L Cobb angle was 28.17° before surgery, 8.60° after surgery, and 10.74° at the final follow-up, with a correction loss of 2.14°. Each subgroup contained 32 cases. A smaller postoperative TL/L Cobb angle was the only risk factor that was independently associated with TL/L correction loss. In the LOSS group, there was a significant difference and no correlation between the immediate postoperative TL/L and the thoracic Cobb angle. In the NO-LOSS group, there was a moderate correlation and no difference between them.ConclusionA smaller immediate postoperative TL/L Cobb angle may have been associated with TL/L correction loss during the long-term follow-up. Thus, good immediate postoperative spontaneous correction may not mean a satisfactory outcome at the final follow-up after STF. Mismatch between thoracic and TL/L Cobb angles immediately after surgery may also be related to correction loss of the unfused TL/L curves. Close attention should be paid in case of deterioration.

【 授权许可】

CC BY   
© The Author(s) 2023

【 图 表 】

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