Abstract Summary
ACL reconstructions aim to restore knee joint stability and decrease knee joint laxity. However, laxity in the frontal plane is not often studied during gait. Twenty-four young adults, twelve who had an ACL reconstruction, and twelve controls, were recruited to perform a maximum of ten gait trials each. No significant frontal plane angular differences were found between sex or knee status across participants, indicating that residual frontal plane laxity is not evident during gait with a minimum of 6 months follow-up. This may reflect a selection of control strategies used that increases knee joint motion variability.