Patellofemoral contact forces and knee gait mechanics 3 months after ACL reconstruction are associated with cartilage degradation 24 months after surgery.

ABSTRACT:

Objective

Evaluate patellofemoral cartilage health, as assessed by quantitative magnetic resonance imaging (qMRI) T₂ relaxation times, 24-months after ACL reconstruction (ACLR) and determine if they were associated with patellofemoral contact forces and knee mechanics during gait 3 months after surgery.

Design

Thirty individuals completed motion analysis during overground walking at a self-selected speed 3 months after ACLR. An EMG-driven neuromusculoskeletal model was used to determine muscle forces, which were then used in a previously described model to estimate patellofemoral contact forces. Biomechanical variables of interest included peak patellofemoral contact force, peak knee flexion angle and moment, and walking speed. These same participants underwent a

SUBMITTER: Williams JR 

PROVIDER: S-EPMC9771964 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature