ArticleJournal of functional biomaterials2024
Experimental Analysis of Stress Shielding Effects in Screw Spacers Placed in Porcine Spinal Tissue.
Article in Journal of functional biomaterials, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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Who cites it
4 citing papers in PubMed.
- Material and Geometric Innovations in Lumbar and Cervical Interbody Devices: A Systematic Scoping Review.Annals of biomedical engineering · 2026Review
- Impact of Habitual Flexion on Bone Formation After Spinal Fusion Surgery: An In Silico Study.JOR spine · 2025Article
- Finite Element Analysis of a 3D-Printed Acetabular Prosthesis for an Acetabular Defect According to the Paprosky Classification.Materials (Basel, Switzerland) · 2025Article
- Long-Term Stability and Osteogenic Activity of Recycled Polysulfone-Calcium Silicate Bone Implants In Vitro.Journal of functional biomaterials · 2025Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Bone cortical tissues reorganize and remodel in response to tensile forces acting on them, while compressive forces cause atrophy. However, implants support most of the payload. Bones do not regenerate, and stress shielding occurs. The aim is to analyze the biomechanical behavior of a lumbar cage to study the implant's stress shielding. The ASTM E-9 standard was used with the necessary adjustments to perform compression tests on lumbar and thoracic porcine spinal vertebrae. Twelve cases were analyzed: six with the metal prosthesis and six with the PEEK implant. A mathematical model based on the Hertz contact theory is proposed to assess the stress shielding for endoprosthesis used in spine pathologies. The lumbar spacer (screw) helps to reduce the stress shielding effect due to the ACME thread. The best interspinous spacer is the PEEK screw. It does not embed in bone. The deformation capability increases by 11.5% and supports 78.6 kg more than a system without any interspinous spacer.
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Registered trials
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