Biomechanical Analysis of Optimal Traction Amount for Halo Pelvic Ring Traction
10.16156/j.1004-7220.2024.06.016
- VernacularTitle:头盆环牵引的最佳牵引量生物力学分析
- Author:
Feng LI
1
;
Rongchang FU
1
;
Yonghao CHEN
1
;
Huai WANG
1
Author Information
1. 新疆大学 智能制造现代产业学院,乌鲁木齐 830017
- Publication Type:Journal Article
- Keywords:
scoliosis;
spinal cord;
halo pelvic ring traction;
traction amount;
finite element analysis
- From:
Journal of Medical Biomechanics
2024;39(6):1123-1129
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the optimal traction amount for treating scoliosis using halo pelvic ring traction(HPRT)and provide theoretical references for clinical surgical assessment and rehabilitation.Methods A three-dimensional(3D)model of the thoracolumbar spine including the spinal cord was created and validated.Five traction amounts(10,15,20,25,30 mm)were applied to the model.The biomechanical responses of the spine under different traction conditions were simulated to determine the optimal amount of traction.Results As the traction increased,the Cobb angle decreased progressively.Significantly,in the range of 15-20 mm,the reduction in Cobb angle accounted for 50%-70.5%of the maximum reduction.The spinal stress at the main curvature represented 47.4%-67.5%of the maximum stress.Meanwhile,the stresses in the gray and white matter of the spinal cord were 70.3%-84.5%and 68.8%-83.9%of their respective maximum stresses.Conclusions The traction amounts between 15 mm and 20 mm are optimal for treating scoliosis.This range maximizes the Cobb angle correction while maintaining lower stress levels and thereby,reduces the risk of damage to the spine and spinal cord.
