ArticleApplied bionics and biomechanics2019
Development of a Three-Dimensional Finite Element Model of Thoracolumbar Kyphotic Deformity following Vertebral Column Decancellation.
Article in Applied bionics and biomechanics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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7 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.
- Corrective Mechanism Aftermath Surgical Treatment of Spine Deformity due to Scoliosis: A Systematic Review of Finite Element Studies.BioMed research international · 2022Pooled it
- Biomechanical evaluation of a novel correction technique for adolescent idiopathic scoliosis: finite element analysis.Frontiers in bioengineering and biotechnology · 2025Article
- Finite element analysis of biomechanical effects of percutaneous cement discoplasty in scoliosis.BMC musculoskeletal disorders · 2024Article
- Finite Element Modeling of the Human Wrist: A Review.Journal of wrist surgery · 2023Article
- A novel in silico Nuss procedure for pectus excavatum patients.Physical and engineering sciences in medicine · 2023Article
- Biomechanical validation of novel Nuss procedure simulations for patients with various morphological types of pectus excavatum.Frontiers in bioengineering and biotechnology · 2023Article
- New method to apply the lumbar lordosis of standing radiographs to supine CT-based virtual 3D lumbar spine models.Scientific reports · 2022Article
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundVertebral column decancellation (VCD) is a new spinal osteotomy technique to correct thoracolumbar kyphotic deformity (TLKD). Relevant biomechanical research is needed to evaluate the safety of the technique and the fixation system. We aimed to develop an accurate finite element (FE) model of the spine with TLKD following VCD and to provide a reliable model for further biomechanical analysis.
methodsA male TLKD patient who had been treated with VCD on L2 and instrumented from T10 to L4 was a volunteer for this study. The CT scanning images of the postoperative spine were used for model development. The FE model, simulating the spine from T1 to the sacrum, includes vertebrae, intervertebral discs, spinal ligaments, pedicle screws, and rods. The model consists of 509580 nodes and 445722 hexahedrons. The ranges of motion (ROM) under different loading conditions were calculated for validation. The stresses acting on rods, screws, and vertebrae were calculated.
resultsThe movement trend, peak stress, and ROM calculated by the current FE model are consistent with previous studies. The FE model in this study is able to simulate the mechanical response of the spine during different motions with different loading conditions. Under axial compression, the rod was the part bearing the peak stress. During flexion, the stress was concentrated on proximal pedicle screws. Under extension and lateral bending, an osteotomized L1 vertebra bore the greatest stress on the model. During tests, ligament disruption and unit deletion were not found, indicating an absence of fracture and fixation breakage. DISCUSSION: A subject-specific FE model of the spine following VCD is developed and validated. It can provide a reliable and accurate digital platform for biomechanical analysis and surgical planning.
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