Occlusion of the Lumbar Spine Canal During High-Rate Axial Compression
Dale L Robinson, Kwong Ming Tse, Melanie Franklyn, David C Ackland, Martin Richardson, Peter Vee Sin Lee
The Spine Journal | Elsevier | Published : 2020
BACKGROUND CONTEXT: While burst fracture is a well-known cause of spinal canal occlusion with dynamic, axial spinal compression, it is unclear how such loading mechanisms might cause occlusion without fracture. PURPOSE: To determine how spinal canal occlusion during dynamic compression of the lumbar spine is differentially caused by fracture or mechanisms without fracture and to examine the influence of spinal level on occlusion. STUDY DESIGN: A cadaveric biomechanical study. METHODS: Twenty sets of three-vertebrae specimens from all spinal levels between T12 and S1 were subjected to dynamic compression using a hydraulic loading apparatus up to a peak velocity between 0.1 and 0.9 m/s. The pr..View full abstract
Awarded by Defence Science and Technology, Australia
Funding for this research was provided by Defence Science and Technology, Australia (MyIP 5818). Thanks to the Melbourne TrACEES Platform (Trace Analysis for Chemical, Earth and Environmental Sciences) for access to the GE phoenix nanotom m micro-CT scanner and technical support from Dr. Jay Black. We also acknowledge the facilities and scientific and technical assistance of the National Imaging Facility, a National Collaborative Research Infrastructure Strategy (NCRIS) capability, at Monash Biomedical Imaging, Monash University.