A mechanical analog thoracolumbar spine model for the evaluation of scoliosis bracing technology:

Journal of Rehabilitation and Assistive Technologies Engineering

Chloe LChung¹ 

关键词: Scoliosis;    analog model;    brace;    spinal orthosis;    loading/response model;   

DOI  :  10.1177/2055668318809661

学科分类：工程和技术（综合）

来源: Sage Journals

【 摘 要 】

IntroductionThoracolumbar braces are used to treat Adolescent Idiopathic Scoliosis. The objective of this study was to design and validate a mechanical analog model of the spine to simulate a thoracolumbar, single-curve, scoliotic deformity in order to quantify brace structural properties and corrective force response on the spine.MethodsThe Scoliosis Analog Model used a linkage-based system to replicate 3D kinematics of spinal correction observed in the clinic. The Scoliosis Analog Model is used with a robotic testing platform and programmed to simulate Cobb angle and axial rotation correction while equipped with a brace. The 3D force and moment responses generated by the brace in reaction to the simulated deformity were measured by six-axis load cells.ResultsValidation of the model’s force transmission showed less than 6% loss in the force analysis due to assembly friction. During simulation of 10° Cobb angle and 5° axial rotation correction, the brace applied 101 N upwards and 67 N inwards to the apica...

【 授权许可】

CC BY