Experimental Analysis of Stress Shielding Effects in Screw Spacers Placed in Porcine Spinal Tissue
Elliot Alonso Alcántara-Arreola,
Karla Nayeli Silva-Garcés,
Jocabed Mendoza-Martínez
et al.
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… Show more
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