ArticleBMC musculoskeletal disorders2022
Effects of osteoporosis on the biomechanics of various supplemental fixations co-applied with oblique lumbar interbody fusion (OLIF): a finite element analysis.
Article in BMC musculoskeletal disorders, 2022. 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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16 citing papers in PubMed, 22 citations in OpenAlex.
- Hounsfield unit threshold to predict lumbar fusion failure: a finite element study.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026Article
- Biomechanical evaluation of a novel L-shaped side-locking plate combined with OLIF: a finite element analysis considering 3 different bone densities.Frontiers in surgery · 2026Article
- Impact of Habitual Flexion on Bone Formation After Spinal Fusion Surgery: An In Silico Study.JOR spine · 2025Article
- Biomechanical Comparison of a Novel Facet Joint Fusion Fixation Device With Conventional Pedicle Screw Fixation Device: A Finite Element Analysis.Orthopaedic surgery · 2025Article
- Preoperative CT attenuation value classification assesses cage subsidence risk in 112 OLIF surgery cases.Scientific reports · 2025Article
- Changing rod stiffness to moderate stress of adjacent disc in oblique lumbar interbody fusion - a finite element analysis.BMC musculoskeletal disorders · 2025Article
- Analysis of the therapeutic efficacy of OLIF combined with posterior percutaneous pedicle screw fixation in the treatment of patients with primary lumbar spondylodiscitis.Frontiers in surgery · 2025Article
- Biomechanical evaluation of oblique lateral interbody fusion with various fixation methods for degenerative lumbar scoliosis: a finite element analysis considering different bone densities.Frontiers in bioengineering and biotechnology · 2025Article
- An in vitro biomechanical evaluation of integrated lateral plate combined with oblique lateral interbody fusion in different bone conditions.Scientific reports · 2024Article
- Biomechanical Analysis of Lumbar Interbody Fusion Cages With Various Elastic Moduli in Osteoporotic and Non-osteoporotic Lumbar Spine: A Finite Element Analysis.Global spine journal · 2024Article
- Biomechanical evaluation of different oblique lumbar interbody fusion constructs: a finite element analysis.BMC musculoskeletal disorders · 2024Article
- Risk factors for low back pain after oblique lumbar interbody fusion in patients with low-grade degenerative lumbar spondylolisthesis: a retrospective study.Frontiers in surgery · 2024Article
- Biomechanical differences between two different shapes of oblique lumbar interbody fusion cages on whether to add posterior internal fixation system: a finite element analysis.Journal of orthopaedic surgery and research · 2023Article
- Effect of Interbody Implants on the Biomechanical Behavior of Lateral Lumbar Interbody Fusion: A Finite Element Study.Journal of functional biomaterials · 2023Article
- Biomechanical stability of oblique lateral interbody fusion combined with four types of internal fixations: finite element analysis.Frontiers in bioengineering and biotechnology · 2023Article
- Biomechanical comparative analysis of conventional pedicle screws and cortical bone trajectory fixation in the lumbar spine: An in vitro and finite element study.Frontiers in bioengineering and biotechnology · 2023Article
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Authors and funding
10 authors at 4 institutions in 1 country.
Funding
Abstract
backgroundOblique lumbar interbody fusion (OLIF) is an important surgical modality for the treatment of degenerative lumbar spine disease. Various supplemental fixations can be co-applied with OLIF, increasing OLIF stability and reducing complications. However, it is unclear whether osteoporosis affects the success of supplemental fixations; therefore, this study analyzed the effects of osteoporosis on various supplemental fixations co-applied with OLIF.
methodsWe developed and validated an L3-S1 finite element (FE) model; we assigned different material properties to each component and established models of the osteoporotic and normal bone lumbar spine. We explored the outcomes of OLIF combined with each of five supplemental fixations: standalone OLIF; OLIF with lateral plate fixation (OLIF + LPF); OLIF with translaminar facet joint fixation and unilateral pedicle screw fixation (OLIF + TFJF + UPSF); OLIF with unilateral pedicle screw fixation (OLIF + UPSF); and OLIF with bilateral pedicle screw fixation (OLIF + BPSF). Under the various working conditions, we calculated the ranges of motion (ROMs) of the normal bone and osteoporosis models, the maximum Mises stresses of the fixation instruments (MMSFIs), and the average Mises stresses on cancellous bone (AMSCBs).
resultsCompared with the normal bone OLIF model, no demonstrable change in any segmental ROM was apparent. The MMSFIs increased in all five osteoporotic OLIF models. In the OLIF + TFJF + UPSF model, the MMSFIs increased sharply in forward flexion and extension. The stress changes of the OLIF + UPSF, OLIF + BPSF, and OLIF + TFJF + UPSF models were similar; all stresses trended upward. The AMSCBs decreased in all five osteoporotic OLIF models during flexion, extension, lateral bending, and axial rotation. The average stress change of cancellous bone was most obvious under extension. The AMSCBs of the five OLIF models decreased by 14%, 23.44%, 21.97%, 40.56%, and 22.44% respectively.
conclusionsFor some supplemental fixations, the AMSCBs were all reduced and the MMSFIs were all increased in the osteoporotic model, compared with the OLIF model of normal bone. Therefore, the biomechanical performance of an osteoporotic model may be inferior to the biomechanical performance of a normal model for the same fixation method; in some instances, it may increase the risks of fracture and internal fixation failure.
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