A biomechanical study on post-scoliotic deformity correction. Issue 2 (August 2020)

• Record Type: Journal Article
• Authors: Balamurugan, S; Pandey, Kunal; Iyer, Shraddha R; Krishnan, Appaji; Patil, Shantanu
• Is Part Of: IOP conference series. Volume 912:Issue 2(2020)
• Publication Date: 2020-08
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/912/2/022020
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Scoliosis is the deformity of the growing human spinal column such that the vertebral alignment is distorted in a corkscrew fashion. A person with severely deformed spine may find it difficult to breathe as the ribcage may press against the internal organs compromising the functions of the lungs and the heart. Due to the altered load transfer, these patients also suffer from back pain and early arthritis. The scoliotic deformity is surgically corrected by using implants which are screwed into the vertebra. In severe cases, complete correction may not be achievable. As a result, the loads experienced by the implants may not be optimal, leading to their early failure. The objective of this work is to study the effect on the deformity correction in a scoliotic spine. A three-dimensional model of the surgically corrected spine was segmented from the computed tomography scan and converted into a surface model. This model was imported in to ANSYS for meshing and subjected to compression load to simulate weight bearing. The stress concentration and displacement across the entire spine, individual vertebrae and discs was analysed. The effect on the implants was separately analysed as well.