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Comparative biomechanical research of a brand new transpedicular vertebral machine and vertebroplasty for the remedy or prevention of vertebral compression fractures.
Clin Biomech (Bristol, Avon). 2018 Could 02;56:40-45
Authors: Aebi M, Maas C, Di Pauli von Treuheim T, Friedrich H, Wilke HJ
Summary
BACKGROUND: A comparative research was carried out between a novel transpedicular implant (V-STRUT©, Hyprevention, France) and vertebroplasty. This research goals to evaluate the biomechanical efficacy of this implant in resurrecting and fortifying the osteoporotic vertebra following a vertebral physique fracture.
METHODS: A complete of 17 vertebrae from three human osteoporotic backbone segments (T9-L5) have been chosen. Vertebral compression fractures have been generated by eccentric compressive loading till a top discount of 25%. Then the vertebrae have been both fastened utilizing vertebroplasty method (management group; n?=?eight) or implanted with V-STRUT© implant mixed with bone cement (machine group; n?=?9). A brand new compressive loading was carried out in the identical circumstances. Maximal load and stiffness, in addition to whole power to fracture have been measured.
FINDINGS: Fracture drive and power to fracture have been each elevated both after V-STRUT© implantation or vertebroplasty in comparison with when the preliminary fracture was generated. Imply improve share between the preliminary worth and the post-treatment worth for every parameter have been +77% vs +39% concerning fracture load and +126% vs +99% for power to fracture, for the machine group vs vertebroplasty group respectively. No pedicle fractures have been noticed in each teams, nor implant breaking or bending within the machine group.
INTERPRETATION: These outcomes present the flexibility of V-STRUT© mixed with bone cement to bolster the vertebral physique power, with an no less than equal biomechanical efficiency as vertebroplasty. Additional scientific investigation must be undertaken to show any scientific superiority of V-STRUT© over vertebroplasty.
PMID: 29803111 [PubMed – as supplied by publisher]