Comparison of recovery status using three hop tests one year after anterior cruciate ligament reconstruction

Abstract

[Purpose] To investigate the recovery status using the Hop test one year after anterior cruciate ligament reconstruction (ACLR). [Participants and Methods] The participants were 218 cases after ACLR. The recovery rate of the Limb Symmetry Index (LSI) ≥90% for Vertical Hop (VH), Single Leg Hop (SLH), and Triple Hop (TH) at 1 year after ACLR were examined separately as well as all Hop tests together. [Results] The recovery rates of VH, SLH, and TH were 67.9%, 78.4%, and 78.9% respectively. VH had the lowest recovery rate. The recovery rate for all Hop tests was 59.2%. [Conclusion] About 40% of cases had LSI <90% in the Hop test. In particular, the recovery rate of VH tended to be lower.