Design and Validation of Scoliosis Orthosis Based on Finite Element Model
10.16156/j.1004-7220.2025.04.026
- VernacularTitle:基于有限元模型的脊柱侧弯矫形器设计与验证
- Author:
Jiaxiang LIN
1
;
Yi CHEN
;
Guanglin SHI
;
Wenfeng WANG
;
Kunwu LAN
;
Wenjun JIANG
;
Zipeng AI
;
Weijie PENG
Author Information
1. 广西科技大学机械与汽车工程学院,广西柳州 545006
- Publication Type:Journal Article
- Keywords:
scoliosis;
orthopedic effect;
corrective force;
torso-spine model;
orthosis design
- From:
Journal of Medical Biomechanics
2025;40(4):988-995
- CountryChina
- Language:Chinese
-
Abstract:
Objective Based on the finite element simulation analysis of the patient's torso-spine model and combined with theoretical calculation data,an individualized scoliosis orthosis was designed,and the effectiveness of the orthosis was verified through three-dimensional(3D)printing.Methods A patient with idiopathic scoliosis was chosen as the research object.Reverse engineering technology and computer-aided technology were used to establish the torso-spine model of the patient.The finite element method was used to analyze the model,and the optimal position and magnitude of the corrective force were determined by combining literature theory calculation.Based on this,an orthosis was designed.To verify the orthopedic effect,the patient's X-rays before and after wearing the orthosis were compared and evaluated,and the patient was followed up 6 months later.Results The optimal position and magnitude of the initial corrective force were determined through theoretical calculations and finite element simulations.Specifically,a 62.95 N corrective force applied to the L3 vertebral body and the left posterior region corresponding to the upper and lower intervertebral discs in the patient's lateral curvature segment of the spine to achieve the optimal orthopedic effect.On this basis,the orthosis was designed,followed by relevant experimental tests before and after wearing the designed orthosis.By comparing X-ray images of the patient before and after wearing the orthosis and combining them with follow-up data six months later,the optimized design of the orthosis met the expected clinical requirements for orthopedic effects.Conclusions The design of orthosis needs to be personalized according to the specific situation of patients with scoliosis.This study takes a patient with idiopathic scoliosis as the research object,providing new ideas and methods for the design of orthosis for patients with idiopathic scoliosis.
