Quantitative gait analysis of patients with cerebral palsy using the optical method

Abstract

The study of human gait is essential for characterizing body movement through space and its relationship with the environment. This research quantitatively assessed gait parameters in a pediatric patient with spastic cerebral palsy (grade 1-2) capable of independent ambulation, using the VICON 3D optical system at the Julio Díaz Rehabilitation Hospital. The analysis revealed significant biomechanical alterations in the patient, including: permanent asymmetric hip and knee flexion, internal ankle rotation combined with external hip rotation, and excessive ankle dorsiflexion. Additionally, abnormal pelvic movement was identified, featuring alternating anteversion and retroversion patterns. The optical motion capture technology demonstrated its clinical value by: establishing correlations between neuromuscular impairments and gait abnormalities, enabling precise diagnosis, facilitating personalized rehabilitation planning, and providing objective progress monitoring. These capabilities significantly enhance therapeutic strategy development for cerebral palsy management.