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Clinical Impact of Corrective Cast Treatment for Early Onset Scoliosis: Is It a Worthwhile Treatment Option to Suppress Scoliosis Progression Before Surgical Intervention?

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Although corrective cast (CC) has been back in use for the treatment of early onset scoliosis (EOS), no studies have reported how clinically meaningful CC was in comparison with brace-only treatment (BT) in EOS. The aim of this study was to investigate the effect of CC treatment in terms of suppression of scoliosis progression before surgery.


This study was designed to conduct a comparison of patients treated at 2 spine institutions differing in treating methods (one: mainly CC with brace, the other: BT). Applying casts were performed without general anesthesia and repeatedly with the interval of 2 to 6 months combined with corrective brace application called alternatively repetitive cast and brace treatment (ARCBT). In total, 58 patients met the following criteria: (1) age at the first visit ≤6 years, (2) scoliosis ≥40 degrees, (3) conservative treatment≥2 years. Patients with congenital scoliosis were excluded in this study. In total, 58 patients were divided into 2 groups; cast/brace group (C/B-G) and BT group (B-G).


There were no significant differences of diagnosis (P=0.2773), sex (P=0.0670), age at the first visit (P=0.1457), scoliosis magnitude (P=0.1980), and duration for conservative treatment (P=0.2578) between 2 groups. Most of the patients who were treated with ARCBT, were switched to BT due to lower compliance for CC after the age of around 7 years. The progression of scoliosis during ARCBT and BT were 4.4 and 5.8 degree/y, respectively. Those during ARCBT in C/B-G was 2.8 degree/y comparing with 8.4 degree/y after switch to BT after 7 years of age. There was a significant difference between scoliosis progression during ARCBT in C/B-G and that of B-G (P=0.0086).


This study showed that ARCBT had a significant impact on suppression of scoliosis progression compared with BT in EOS. However, the termination of cast application and the switch to BT may be still a clinical question considering the time to surgical intervention.

Level of Evidence:

Level III—retrospective comparative study.
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Keywords: brace treatment; corrective cast; early onset scoliosis; growth-friendly surgery; spine fusion

Document Type: Research Article

Affiliations: 1: Department of Orthopedics and Spine Surgery, Meijo Hospital, Nagoya 2: Department of Orthopedic Surgery, National Kobe Medical Center, Kobe, Japan

Publication date: November 1, 2018

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