A reduced order model of the spine to study pediatric scoliosis

Author:

Neelakantan Sunder,Purohit Prashant K.,Pasha SabaORCID

Abstract

AbstractThe S-shaped curvature of the spine has been hypothesized as the underlying mechanical cause of adolescent idiopathic scoliosis. In earlier work we proposed a reduced order model in which the spine was viewed as an S-shaped elastic rod under torsion and bending. Here, we simulate the deformation of S-shaped rods of a wide range of curvatures and inflection points under a fixed mechanical loading. Our analysis determines three distinct axial projection patterns of these S-shaped rods: two loop (in opposite directions) patterns and one lemniscate pattern. We further identify the curve characteristics associated with each deformation pattern showing that for rods deforming in a loop 1 shape the position of the inflection point is the highest and the curvature of the rod is smaller compared to the other two types. For rods deforming in the loop 2 shape the position of the inflection point is the lowest (closer to the fixed base) and the curvatures are higher than the other two types. These patterns matched the common clinically observed scoliotic curves - Lenke 1 and Lenke 5. Our elastic rod model predicts deformations that are similar to those of a pediatric spine and it can differentiate between the clinically observed deformation patterns. This provides validation to the hypothesis that changes in the sagittal profile of the spine can be a mechanical factor in parthenogenesis of pediatric idiopathic scoliosis.

Publisher

Cold Spring Harbor Laboratory

Reference30 articles.

1. Antman, S. . Nonlinear Problems of Elasticity. Applied Mathematical Sciences. Springer New York, 2006.

2. Audoly, B. and Pomeau, Y. . Elasticity and Geometry: From hair curls to the non-linear response of shells. OUP Oxford, 2010.

3. Analog studies of forces in the human spine: Computational techniques

4. Anterior-posterior length discrepancy of the spinal column in adolescent idiopathic scoliosis—a 3d ct study;The Spine Journal,2018

5. Aetiology of idiopathic scoliosis: current concepts

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Idiopathic Scoliosis as a Rotatory Decompensation of the Spine;Journal of Bone and Mineral Research;2020-09-09

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