Impact of the Free-Pelvis Innovation in Very Rigid Braces for Adolescents with Idiopathic Scoliosis: Short-Term Results of a Matched Case-Control Study
Articolo
Data di Pubblicazione:
2022
Citazione:
Impact of the Free-Pelvis Innovation in Very Rigid Braces for Adolescents with Idiopathic Scoliosis: Short-Term Results of a Matched Case-Control Study / S. Negrini, F. Tessadri, F. Negrini, M. Tavernaro, A. Zonta, F. Zaina, S. Donzelli. - In: CHILDREN. - ISSN 2227-9067. - 9:6(2022), pp. 871.1-871.11. [10.3390/children9060871]
Abstract:
We introduced pelvis semi-rigid material (ethylene vinyl acetate) (Free-Pelvis) to improve
the comfort and adaptability of very rigid braces (VRBs) for adolescents with idiopathic scoliosis
(AIS), but this can also negatively impact the corrective forces on the trunk. Study Design: This was a
matched retrospective cohort study. The inclusion criteria were AIS, age 10–16, VRB 23 h/day, X-rays
available, primary curve 36◦–65◦, and angle of trunk rotation 7–23◦. The cases were Sforzesco VRB
with Free-Pelvis (FPB). The controls included classical Sforzesco VRB matched for Risser (range 0/4),
menarche age (10/15), weight (33.5/83 kg), height (140/180 cm), BMI (13.5/29 kg/sqm), aesthetics
(TRACE 4/12), plumbline distances (S1: −60/35; C7 + L3: −10/115 mm), and referred brace
use (22/24 h/day). Statistics: predictors of the results have been tested with linear and logistic
regression according to the outcome variable type. We performed logistic regression for improved vs.
worsened. The explanatory variable was brace type. We included 777 VRB and 25 FPB, age 13 ± 1,
47◦ ± 8◦ Cobb, and 11% men. The few baseline statistical differences were not clinically relevant.
We achieved in-brace corrections of 15.2◦ ± 7.7◦ and 17.4◦ ± 6.5◦ for VRB and FPB, respectively
(p = 0.21); out-of-brace corrections at 5 ± 2 months were 7.8◦ ± 0.2◦ for VRB and 8.1◦ ± 1.3◦ for FPB
(p = 0.83). The type of brace did not influence the Cobb angle at either time interval or affect the odds
of improvement. Free-Pelvis innovation, introduced to improve comfort and adaptability, does not
change the in-brace or short-term results of classical VRB and consequently can be safely applied.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Adolescent idiopathic scoliosis; brace; rehabilitation
Elenco autori:
S. Negrini, F. Tessadri, F. Negrini, M. Tavernaro, A. Zonta, F. Zaina, S. Donzelli
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