The GSi algorithm aims to objectively evaluate walking impairment in lumbar disc herniation (LDH) patients. It calculates deviation from age-matched normative values for gait velocity, step time asymmetry, and step length asymmetry. Clinical performance was assessed in a prospective, single surgeon series of 33 lumbar disc herniation (LDH) patients. In a prospective series of 33 LDH patients, GSi was lower in those undergoing surgical compared to conservative management.

Publication Link: https://www.sciencedirect.com/science/article/pii/S2772529422000364