ArticleJournal of orthopaedic translation2018
Biomechanical properties of novel transpedicular transdiscal screw fixation with interbody arthrodesis technique in lumbar spine: A finite element study.
Article in Journal of orthopaedic translation, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- The effect of pedicle screw angle on stress distribution in lumbar spine fixation: an optimization approach based on finite element analysis.Journal of orthopaedic surgery and research · 2026Article
- Single-Side Iatrogenic Pedicle Injury May Trigger an Increased Risk of Contralateral Screw Loosening: An In Silico Study.JOR spine · 2025Article
- Finite Element Analysis of Biomechanical Assessment: Traditional Bilateral Pedicle Screw System vs. Novel Reverse Transdiscal Screw System for Lumbar Degenerative Disc Disease.Bioengineering (Basel, Switzerland) · 2025Article
- Hounsfield unit to serum pentosidine ratio predicts screw loosening after lumbar interbody fusion.BMC musculoskeletal disorders · 2024Article
- Biomechanical properties analysis of posterior lumbar interbody fusion with transpedicular oblique screw fixation.Heliyon · 2024Article
- Sacrolumbar Interbody Fusion (SLIF): Feasibility, Technical Nuances, Biomechanical Assessment, and Clinical Outcomes.Spine surgery and related research · 2024Article
- Targeted Delivery of Abaloparatide to Spinal Fusion Site Accelerates Fusion Process in Rats.Biomedicines · 2024Article
- Biomechanical assessment of anterior plate system, bilateral pedicle screw and transdiscal screw system for high-grade spondylolisthesis: a finite element study.Frontiers in bioengineering and biotechnology · 2024Article
- A Novel Free-hand Technique of Pedicle Screw Placement in the Lumbar Spine: Accuracy Evaluation and Preliminary Clinical Results.Orthopaedic surgery · 2023Article
- Pathophysiological mechanism of acute bone loss after fracture.Journal of advanced research · 2023Review
- The preoperative Hounsfield unit value at the position of the future screw insertion is a better predictor of screw loosening than other methods.European radiology · 2023Article
- Therapeutics for enhancement of spinal fusion: A mini review.Journal of orthopaedic translation · 2021Review
- MDCT-Based Finite Element Analysis for the Prediction of Functional Spine Unit Strength-An In Vitro Study.Materials (Basel, Switzerland) · 2021Article
- Disc measurement and nucleus calibration in a smoothened lumbar model increases the accuracy and efficiency of in-silico study.Journal of orthopaedic surgery and research · 2021Article
- Effects of unilateral and bilateral pedicle screw fixation on symptoms and quality of life of patients with lumbar degenerative diseases.American journal of translational research · 2021Article
- Orthopaedic imaging for translational research and clinical application.Journal of orthopaedic translation · 2018Article
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of this study was to investigate finite element biomechanical properties of the novel transpedicular transdiscal (TPTD) screw fixation with interbody arthrodesis technique in lumbar spine.
methodsAn L4-L5 finite element model was established and validated. Then, two fixation models, TPTD screw system and bilateral pedicle screw system (BPSS), were established on the validated L4-L5 finite element model. The inferior surface of the L5 vertebra was set immobilised, and moment of 7.5 Nm was applied on the L4 vertebra to test the range of motion (ROM) and stress at flexion, extension, lateral bending and axial rotation.
resultsThe intact model was validated for prediction accuracy by comparing two previously published studies. Both of TPTD and BPSS fixation models displayed decreased motion at L4-L5. The ROMs of six moments of flexion, extension, left lateral bending, right lateral bending, left axial rotation and right axial rotation in TPTD model were 1.92, 2.12, 1.10, 1.11, 0.90 and 0.87°, respectively; in BPSS model, they were 1.48, 0.42, 0.35, 0.38, 0.74 and 0.75°, respectively. The screws' peak stress of above six moments in TPTD model was 182.58, 272.75, 133.01, 137.36, 155.48 and 150.50 MPa, respectively; and in BPSS model, it was 103.16, 129.74, 120.28, 134.62, 180.84 and 169.76 MPa, respectively.
conclusionBoth BPSS and TPTD can provide stable biomechanical properties for lumbar spine. The decreased ROM of flexion, extension and lateral bending was slightly more in BPSS model than in TPTD model, but TPTD model had similar ROM of axial rotation with BPSS model. The screws' peak stress of TPTD screw focused on the L4-L5 intervertebral space region, and more caution should be put at this site for the fatigue breakage. THE TRANSLATIONAL POTENTIAL OF THIS ARTICLE: Our finite element study provides the biomechanical properties of novel TPTD screw fixation, and promotes this novel transpedicular transdiscal screw fixation with interbody arthrodesis technique be used clinically.
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