Upper and lower adjacent segment range of motion after fixation of different lumbar spine segments in the goat: an in vitro experiment.

ABSTRACT:

Objectives

The purpose of this study was to examine the biomechanical effects of fixation on range of motion (ROM) in the upper and lower adjacent segments of different lumbar spine segments in a goat spine model.

Methods

Fifteen goat spine specimens (vertebrae T12-S1) were randomly divided into three groups: A (single-segment fixation), B (double-segment fixation), and C (triple-segment fixation). Motion in different directions was tested using a spinal motion simulation test system with five external loading forces. Transverse, forward-backward, and vertical displacement of the upper and lower adjacent segments were measured.

Results

As the external load increased, the upper and lower adjacent segment ROM increased. A significantly greater ROM in group C compared wi

SUBMITTER: Ou Y 

PROVIDER: S-EPMC8236786 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature