Patient-specific finite element model of the spine and spinal cord to assess the neurological impact of scoliosis correction: preliminary application on two cases with and without intraoperative neurological complications

Computer Methods in Biomechanics and Biomedical Engineering
Juan HenaoPierre-Jean Arnoux

Abstract

Scoliosis is a 3D deformation of the spine and rib cage. For severe cases, surgery with spine instrumentation is required to restore a balanced spine curvature. This surgical procedure may represent a neurological risk for the patient, especially during corrective maneuvers. This study aimed to computationally simulate the surgical instrumentation maneuvers on a patient-specific biomechanical model of the spine and spinal cord to assess and predict potential damage to the spinal cord and spinal nerves. A detailed finite element model (FEM) of the spine and spinal cord of a healthy subject was used as reference geometry. The FEM was personalized to the geometry of the patient using a 3D biplanar radiographic reconstruction technique and 3D dual kriging. Step by step surgical instrumentation maneuvers were simulated in order to assess the neurological risk associated to each maneuver. The surgical simulation methodology implemented was divided into two parts. First, a global multi-body simulation was used to extract the 3D displacement of six vertebral landmarks, which were then introduced as boundary conditions into the personalized FEM in order to reproduce the surgical procedure. The results of the FEM simulation for two cases...Continue Reading

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Citations

Mar 23, 2020·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Zhiqiang HouLin Cai
Jun 22, 2018·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Manon SterbaCarl-Éric Aubin
Jan 5, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Patrice SudresYvan Petit
Feb 16, 2021·Computer Methods in Biomechanics and Biomedical Engineering·Qian-Qian YuRui Zhu
Feb 24, 2021·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Roxanne Dubé-CyrCarl-Éric Aubin
Aug 31, 2021·Frontiers in Bioengineering and Biotechnology·Aleksander RycmanDuane S Cronin
Aug 10, 2021·Journal of Biomechanical Engineering·Marie-Hélène BeauséjourYvan Petit

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Software Mentioned

RADIOSS
Matlab

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