Biomechanical rigidity of an all-polyetheretherketone anterior thoracolumbar spinal reconstruction construct: an in vitro corpectomy model

The Spine Journal : Official Journal of the North American Spine Society
Seung-Myung MoonAlexander R Vaccaro

Abstract

Polyetheretherketone (PEEK) is gaining favor as a spinal implant material for interbody and corpectomy cages as well as stabilizing rods. However, there has been little correlation to a relevant and reproducible clinical model. Biomechanical data on PEEK rod constructs have not been reported. To quantify the stabilizing effects of PEEK versus titanium (Ti) instrumentation in a thoracolumbar corpectomy model. Corpectomy and randomized instrumentation with an all-Ti, all-PEEK, and hybrid cage/rod construct were performed on cadaveric spines to assess biomechanical differences. Pure unconstrained bending moments were applied to the intact spine and subsequent test constructs in the three physiologic planes using a load control protocol. Motion tracking and analysis were carried out to quantify and compare the range of motion (ROM) between different test constructs in each plane. Flexion ROM did not show significant changes compared with intact, whereas the all-Ti and hybrid construct reduced ROM significantly in extension. Lateral bending was significantly reduced in all the treatment groups. Rotational stability of the construct was significantly compromised by an all-PEEK spinal construct. The rigidity of the corpectomy construc...Continue Reading

References

Apr 1, 1989·Spine·T S WhitecloudP D Candelora
Jun 9, 2005·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Stephen J FergusonAnne Polikeit
Apr 6, 2006·The Journal of Bone and Joint Surgery. American Volume·Vijay K GoelUNKNOWN American Society for Testing and Materials
Jul 5, 2007·Neurosurgical Focus·Jason M HighsmithGerald E Rodts

❮ Previous
Next ❯

Citations

Dec 10, 2013·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·Kingsley Abode-IyamahPatrick W Hitchon
Sep 13, 2011·The Journal of Oral Implantology·Andreas Schwitalla, Wolf-Dieter Müller
Feb 4, 2014·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Andreas F MavrogenisSpyros G Pneumaticos
Apr 1, 2014·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Godoberto Guevara-RojasFranz Watzinger
Sep 29, 2011·Journal of Biomechanical Engineering·Matthew F GornetJorge A Ochoa
Aug 2, 2011·The Spine Journal : Official Journal of the North American Spine Society·Anil SethiRahul Vaidya
Jul 5, 2013·Orthopedics·Michael AthanasakopoulosSpiros G Pneumaticos
Jan 3, 2014·Journal of Biomedical Materials Research. Part a·Uphar ChamoliNaomi Tsafnat
Apr 29, 2015·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Martin GehrchenSaif Khalil
Jun 22, 2016·The Journal of Oral Implantology·Ilker KeskinerSeda Ozturan
May 28, 2019·Journal of Medicine and Life·Lakshmana BathalaSirisha Gedela
Feb 3, 2020·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Jie WuZheng Guo
Mar 14, 2013·Expert Review of Medical Devices·Ioannis D PapanastassiouFrank D Vrionis
Jul 11, 2020·Dentistry Journal·Emilia BarkerKeyvan Moharamzadeh
Mar 5, 2021·Global Spine Journal·Jie WuZheng Guo
Jun 25, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·Friederike BötelAndreas Dominik Schwitalla
Mar 18, 2021·Journal of Biomechanical Engineering·Chia-En WongKuo-Yuan Huang

❮ Previous
Next ❯

Related Concepts

Related Feeds

Biomechanics

Biomechanics examines the generation of internal forces within the body and investigates the effects and control of forces that act on or are produced on tissues. Here are the latest discoveries.