ArticleJournal of orthopaedic surgery and research2023
Biomechanical properties of different anterior and posterior techniques for atlantoaxial fixation: a finite element analysis.
Article in Journal of orthopaedic surgery and research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Orthopedic Biomaterials in the Clinical Reconstruction of Osteoporotic Atlantoaxial Injuries: A Review.Bioengineering (Basel, Switzerland) · 2026Review
- Three-dimensional morphometry and clinical implications of the atlantoaxial lateral mass joint: a study of sexual dimorphism.Journal of orthopaedic surgery and research · 2026Article
- Three-dimensional quantitative CT analysis of the C2 spinous process and its implications for spinous process screw fixation.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 · 2026Article
- [Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2026Article
- Biomechanical rational for development of cervical kyphosis deformity: a finite element analysis.BMC musculoskeletal disorders · 2025Article
- Biomechanical evaluation of In-Out-In pedicle screws for atlantoaxial posterior fixation in the presence of high-riding vertebral artery and narrow C2 pedicles: a finite element analysis.Journal of orthopaedic surgery and research · 2025Article
- The biomechanical study of different fixation techniques for combination fractures of atlas and axis: a finite element analysis.European journal of medical research · 2025Article
- Determining a relative total lumbar range of motion to alleviate adjacent segment degeneration after transforaminal lumbar interbody fusion: a finite element analysis.BMC musculoskeletal disorders · 2024Article
- Quantitative relationships between elastic modulus of rod and biomechanical properties of transforaminal lumbar interbody fusion: a finite element analysis.Frontiers in bioengineering and biotechnology · 2024Article
- The retropharyngeal reduction plate for atlantoaxial dislocation: a finite element analysis.Frontiers in bioengineering and biotechnology · 2024Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
backgroundMany techniques for atlantoaxial fixation have been developed. However, the biomechanical differences among various atlantoaxial fixation methods remain unclear. This study aimed to evaluate the biomechanical influence of anterior and posterior atlantoaxial fixation techniques on fixed and nonfixed segments.
methodsAn occiput-C7 cervical finite element model was used to construct 6 surgical models including a Harms plate, a transoral atlantoaxial reduction plate (TARP), an anterior transarticular screw (ATS), a Magerl screw, a posterior screw-plate, and a screw-rod system. Range of motion (ROM), facet joint force (FJF), disc stress, screw stress, and bone-screw interface stress were calculated.
resultsThe C1/2 ROMs were relatively small in the ATS and Magerl screw models under all loading directions except for extension (0.1°-1.0°). The posterior screw-plate system and screw-rod system generated greater stresses on the screws (77.6-1018.1 MPa) and bone-screw interfaces (58.3-499.0 MPa). The Harms plate and TARP models had relatively small ROMs (3.2°-17.6°), disc stress (1.3-7.6 MPa), and FJF (3.3-106.8 N) at the nonfixed segments. Changes in disc stress and FJF of the cervical segments were not consistent with changes in ROM.
conclusionsATS and Magerl screws may provide good atlantoaxial stability. The posterior screw-rod system and screw-plate system may have higher risks of screw loosening and breakage. The Harms plate and TARP model may more effectively relieve nonfixed segment degeneration than other techniques. The C0/1 or C2/3 segment may not be more susceptible to degeneration than other nonfixed segments after C1/2 fixation.
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