The Effect Of Anterior Cruciate Ligament And Medial Meniscus Rupture On Knee Extension And Flexion Isokinetic Peak Torque Strength And Cybex Test Protocol: Case Report

Knee extensor and flexor muscles are functioning as essential dynamic stabilizers during activity and a possible strength loss in these muscle groups considerably resulted in knee joint stability. According to these findings, it was aimed to examine the effect of the anterior cruciate ligament rupture (ACL) and medial meniscus tear of two female basketball players who injured due to excessive lateral rotation of the knee movement during competition and whether a Cybex protocol could be useful to improve the muscle strength parameters applied to the participants 16 weeks after following an ACL reconstruction surgery. An ACL rehabilitation protocol that enables different contraction patterns was conducted using a Cybex dynamometer (USA), which is an isokinetic measuring device, 3 times/week throughout 8 and 12 weeks based on the examination results of the flexion and extension strengths of the knee joint of participants. Bilateral knee extension-flexion muscle strength deficit of the participant following two months of testing session (Extension Baseline: 26 %, 1st Month: 15%, 2nd month: 5%; Flexion Baseline: 11%, 1st Month: 19 %, 2nd Month: 8 %); and following three months of rehabilitation session were found (Extension Baseline: 40%, 1st Month:34 %, 2nd Month: 24 %, 3rd Month: 14%; Flexion Baseline: 19%, 1st Month: 9%, 2nd Month: 5%, 3rd Month: 3%), respectively. As a result, it can be stated that Cybex protocol, which was started 16 weeks after ACL operations, accelerated the return to sports by decreasing the strength differences between the extremities of athletes