ArticleOrthopaedic surgery2024
Biomechanical Effects of Different Prosthesis Types and Fixation Ranges in Multisegmental Total En Bloc Spondylectomy: A Finite Element Study.
Article in Orthopaedic surgery, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Biomechanical Effects of Two Types of 3D-Printed Prosthesis Reconstruction After Single-Segmental Total En Bloc Spondylectomy: A Finite Element Analysis.Orthopaedic surgery · 2026Article
- 3D-printed tantalum artificial vertebral body or titanium mesh in anterior column reconstruction post-spondylectomy for thoracic vertebral tumors: a retrospective comparative cohort study and finite element analysis.Journal of orthopaedic surgery and research · 2025Article
- Application of deformity principles in the management of spinal neoplasms: A Primer.North American Spine Society journal · 2025Article
- Clinical Outcomes of N-HA/pa66 and Titanium Mesh in the Treatment of Lower Cervical Spine Fractures and Dislocations During an 8-Year Follow-Up Period.Orthopaedic surgery · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
objectiveMulti-segmental total en bloc spondylectomy (TES) gradually became more commonly used by clinicians. However, the choice of surgical strategy is unclear. This study aims to investigate the biomechanical performance of different prosthesis types and fixation ranges in multisegmental TES.
methodsIn this study, a validated finite element model of T12-L2 post-spondylectomy operations were carried out. The prostheses of these models used either 3D-printed artificial vertebrae or titanium mesh cages. The fixed range was two or three segment levels. Range of motion, stress distribution of the endplate and internal fixation system, intervertebral disc pressure, and facet joint surface force of four postoperative models and intact model in flexion and extension, as well as lateral bending and rotation were analyzed and compared.
resultsThe type of prosthesis used in the anterior column reconstruction mainly affected the stress of the adjacent endplate and the prosthesis itself. The posterior fixation range had a greater influence on the overall range of motion (ROM), the ROM of the adjacent segment, the stress of the screw-rod system, and adjacent facet joint surface force. For the model of the same prosthesis, the increase of fixed length resulted in an obvious reduction of ROM. The maximal decrease was 70.23% during extension, and the minimal decrease was 30.19% during rotation.
conclusionIn three-segment TES, the surgical strategy of using 3D-printed artificial prosthesis for anterior column support and pedicle screws for posterior fixation at both two upper and lower levels respectively can reduce the stress on internal fixation system, endplates, and adjacent intervertebral discs, resulting in a reduced risk of internal fixation failure, and ASD development.
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