Finite element analysis of compression fractures at the thoracolumbar junction using models constructed from medical images
4.8 (396) · $ 17.99 · In stock
Vertebral fractures commonly occur at the thoracolumbar junction. These fractures can be treated with mild residual deformity in many cases, but are reportedly associated with increased risk of secondary vertebral fractures. In the present study, a three‑dimensional (3D) whole spine model was constructed using the finite element method to explore the mechanism of development of compression fractures. The 3D model of the whole spine, from the cervical spine to the pelvis, was constructed from computed tomography (CT) images of an adult male. Using a normal spine model and spine models with compression fractures at the T11, T12 or L1 vertebrae, the distribution of strain was analyzed in the vertebrae after load application. The normal spine model demonstrated greater strain around the thoracolumbar junction and the middle thoracic spine, while the compression fracture models indicated focused strain at the fracture site and adjacent vertebrae. Increased load time resulted in the extension of the strain region up to the middle thoracic spine. The present findings, that secondary vertebral fractures commonly occur around the fracture site, and may also affect the thoracic vertebrae, are consistent with previous clinical and experimental results. These results suggest that follow‑up examinations of compression fractures at the thoracolumbar junction should include the thoracic spine and adjacent vertebrae. The current data also demonstrate that models created from CT images can be used for various analyses.
Compression fracture model construction. (a) Normal vertebral body. (b
Frontiers Biomechanical analysis of sandwich vertebrae in osteoporotic patients: finite element analysis
JFB, Free Full-Text
Applied Sciences, Free Full-Text
Smoothed particle hydrodynamics implementation to enhance vertebral fracture finite element model in a cervical spine segment under compression - ScienceDirect
Bioengineering, Free Full-Text
PDF) Finite element analysis of biconcave fracture in thoracolumbar region of spine
Material properties used in the FE models
Finite Element Method Analysis of Compression Fractures on Whole-Spine Models Including the Rib Cage - Document - Gale OneFile: Health and Medicine
Establishment of a risk prediction model for residual low back pain in thoracolumbar osteoporotic vertebral compression fractures after percutaneous kyphoplasty, Journal of Orthopaedic Surgery and Research
Analysis of Vertebral Bone Strength, Fracture Pattern, and Fracture Location: A Validation Study Using a Computed Tomography-Based Nonlinear Finite Element Analysis
PDF] Finite Element Method Analysis of Compression Fractures on Whole-Spine Models Including the Rib Cage