ArticlePloS one2022
Optimization of a lumbar interspinous fixation device for the lumbar spine with degenerative disc disease.
Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 8 citations in OpenAlex.
- Improved foraminal expansion and pain scores following placement of novel expandable interlaminar stabilization device for lumbar spinal stenosis.Frontiers in surgery · 2026Article
- Biomechanical evaluation of various fixation strategies in oblique lumbar interbody fusion: a finite element analysis.BMC musculoskeletal disorders · 2025Article
- Retrospective analysis of biomechanical features in orthopedic spine disorders: a study on predictive factors for spinal abnormalities.Journal of medicine and life · 2025Article
- Clinical and radiologic evaluation of the IntraSPINE non-fusion technique for lumbar degenerative disease.American journal of translational research · 2025Article
- Validation and Estimation of Obesity-Induced Intervertebral Disc Degeneration through Subject-Specific Finite Element Modelling of Functional Spinal Units.Bioengineering (Basel, Switzerland) · 2024Article
- Biomechanical effect of Coflex and X-STOP spacers on the lumbar spine: a finite element analysis.American journal of translational research · 2022Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Interspinous spacer devices used in interspinous fixation surgery remove soft tissues in the lumbar spine, such as ligaments and muscles and may cause degenerative diseases in adjacent segments its stiffness is higher than that of the lumbar spine. Therefore, this study aimed to structurally and kinematically optimize a lumbar interspinous fixation device (LIFD) using a full lumbar finite element model that allows for minimally invasive surgery, after which the normal behavior of the lumbar spine is not affected. The proposed healthy and degenerative lumbar spine models reflect the physiological characteristics of the lumbar spine in the human body. The optimum number of spring turns and spring wire diameter in the LIFD were selected as 3 mm and 2 turns, respectively-from a dynamic range of motion (ROM) perspective rather than a structural maximum stress perspective-by applying a 7.5 N∙m extension moment and 500 N follower load to the LIFD-inserted lumbar spine model. As the spring wire diameter in the LIFD increased, the maximum stress generated in the LIFD increased, and the ROM decreased. Further, as the number of spring turns decreased, both the maximum stress and ROM of the LIFD increased. When the optimized LIFD was inserted into a degenerative lumbar spine model with a degenerative disc, the facet joint force of the L3-L4 lumbar segment was reduced by 56%-98% in extension, lateral bending, and axial rotation. These results suggest that the optimized device can strengthen the stability of the lumbar spine that has undergone interspinous fixation surgery and reduce the risk of degenerative diseases at the adjacent lumbar segments.
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