Residual T1 tilt could lead to poor self-image for patients with Lenke type 1 adolescent idiopathic scoliosis.

IF 1.6 Q3 CLINICAL NEUROLOGY

Spine deformity Pub Date : 2024-12-10 DOI:10.1007/s43390-024-01020-9

Tomohiro Banno, Yu Yamato, Tomohiko Hasegawa, Go Yoshida, Hideyuki Arima, Shin Oe, Koichiro Ide, Tomohiro Yamada, Kenta Kurosu, Yukihiro Matsuyama

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引用次数: 0

Abstract

Study design: Retrospective study.

Purpose: We aimed to investigate the clinical impact and risk factors for residual T1 tilt in patients with adolescent idiopathic scoliosis (AIS).

Methods: We retrospectively analyzed data of patients with AIS and Lenke type 1 curves who underwent posterior fusion. Residual T1 tilt was defined as T1 tilt > 5° at 2 years postoperatively. Patients were classified based on the presence of residual T1 tilt: residual T1 tilt ( +) and residual T1 tilt (-) groups. Radiographic parameters and clinical outcomes were compared between the two groups.

Results: Among 128 patients, 44 (34.4%) had residual T1 tilt. The residual T1 tilt ( +) group had a significantly greater preoperative proximal thoracic (PT) curve, greater preoperative T1 tilt, and main thoracic (MT) curve correction rate than the residual T1 tilt (-) group. Shoulder imbalance and neck tilt rates at 2 years postoperatively were significantly higher in the residual T1 tilt ( +) group. The residual T1 tilt ( +) group had a significantly worse postoperative self-image score. Multivariate analysis identified the preoperative PT curve magnitude as an independent risk factor for residual T1 tilt. Receiver operating characteristic curve analysis identified a preoperative PT curve cutoff value of 26.5°.

Conclusion: Achieving horizontalization of T1 tilt is vital to improve the self-image of patients with Lenke type 1 AIS. The study highlights the clinical impact of T1 tilt and identifies the preoperative PT curve magnitude as a significant independent risk factor.

Level of evidence: Level 4.

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来源期刊

Spine deformity

CiteScore

3.20

自引率

18.80%

发文量

167

期刊介绍： Spine Deformity the official journal of the?Scoliosis Research Society is a peer-refereed publication to disseminate knowledge on basic science and clinical research into the?etiology?biomechanics?treatment?methods and outcomes of all types of?spinal deformities. The international members of the Editorial Board provide a worldwide perspective for the journal's area of interest.The?journal?will enhance the mission of the Society which is to foster the optimal care of all patients with?spine?deformities worldwide. Articles published in?Spine Deformity?are Medline indexed in PubMed.? The journal publishes original articles in the form of clinical and basic research. Spine Deformity will only publish studies that have institutional review board (IRB) or similar ethics committee approval for human and animal studies and have strictly observed these guidelines. The minimum follow-up period for follow-up clinical studies is 24 months.