Biomechanical effects of a titanium intervertebral cage as a stand-alone device, and in combination with locking plates in the canine caudal cervical spine.

ABSTRACT:

Objective

To evaluate the change in ex vivo biomechanical properties of the canine cervical spine, due to an intervertebral cage, both as a stand-alone device and in combination with plates.

Study design

Experimental ex vivo study.

Animals

Cervical spinal segments (C5-C7) from eight canine cadavers.

Methods

The range of motion (ROM) and elastic zone stiffness (EZS) of the spines were determined with a four-point bending device in flexion/extension, lateral bending, and axial rotation for four conditions: native, discectomy, cage (at C6-C7), and cage with plates (at C6-C7). The disc height index (DHI) for each condition was determined using radiography.

Results

Discectomy resulted in overall increased ROM (p < .01) and EZS (p < .05) and decreased DHI (p <

SUBMITTER: Beishuizen R 

PROVIDER: S-EPMC8360106 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature