ArticleInternational journal of general medicine2022
Biomechanical Effects of Pedicle Screw Positioning on the Surgical Segment in Models After Oblique Lumbar Interbody Fusion: An in-silico Study.
Article in International journal of general medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Changes in facet orientation may simultaneously affect the potential risk of annulus tears and zygapophyseal joint osteoarthritis: a clinical review and biomechanical simulation.La Radiologia medica · 2025Article
- Modified PHILOS system utilizing a single bone cement calcar screw achieves optimal fixation stability and promotes bone healing: a biomechanical study and corresponding case series.BMC musculoskeletal disorders · 2025Article
- Article
- The Bony Density of the Pedicle Plays a More Significant Role in the Screw Anchorage Ability Than Other Regions of the Screw Trajectory.Orthopaedic surgery · 2025Article
- Changes in nail position and antirotation blade angles on the risk of femoral head varus in PFNA fixed patients: a clinical review and comprehensive biomechanical research.European journal of medical research · 2024Article
- Intraoperative capsule protection can reduce the potential risk of adjacent segment degeneration acceleration biomechanically: an in silico study.Journal of orthopaedic surgery and research · 2024Article
- Fixation-induced surgical segment's high stiffness and the damage of posterior structures together trigger a higher risk of adjacent segment disease in patients with lumbar interbody fusion operations.Journal of orthopaedic surgery and research · 2023Article
- Stepwise reduction of bone mineral density increases the risk of cage subsidence in oblique lumbar interbody fusion patients biomechanically: an in-silico study.BMC musculoskeletal disorders · 2022Article
- Preoperative Cervical Cobb Angle Is a Risk Factor for Postoperative Axial Neck Pain after Anterior Cervical Discectomy and Fusion with Zero-Profile Interbody.Orthopaedic surgery · 2022Article
- Biomechanical characteristics of 2 different posterior fixation methods of bilateral pedicle screws: A finite element analysis.Medicine · 2022Article
- Poor bone mineral density aggravates adjacent segment's motility compensation in patients with oblique lumbar interbody fusion with and without pedicle screw fixation: AnFrontiers in surgery · 2022Article
- Deterioration of the fixation segment's stress distribution and the strength reduction of screw holding position together cause screw loosening in ALSR fixed OLIF patients with poor BMD.Frontiers in bioengineering and biotechnology · 2022Article
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8 authors.
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Abstract
backgroundBilateral pedicle screw (BPS) is the "gold standard" of fixation methods for patients with lumbar interbody fusion. Biomechanical deterioration initially triggers complications in the surgical segment. Studies proved that BPS positions and trajectory changes affect the local biomechanical environment. However, no study illustrates the biomechanical effect of insertional screw positions' change on the surgical segment.
methodsOblique lumbar interbody fusion (OLIF) with different BPS insertional positions has been simulated in a well-validated lumbo-sacral model. Fixation stability and stress responses on the surgical segment were evaluated under identical loading conditions.
resultsThere is no clear variation tendency for the risk of BPS failure and the change of strain energy density of the grafted bone. However, shifting the insertional screw position close to the surgical segment will increase the range of motions (ROM) in the surgical segment and lead to stress concentration of bony structures, especially in the caudal side of the surgical segment.
conclusionAdjusting the insertional position of BPS close to the surgical segment in OLIF models will lead to stress concentration of bony structures and surgical segmental instability. Therefore, reducing BPS's fixation length was not recommended, which may increase the risk of segmental instability, non-union, and cage subsidence.
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