Akademik Veri Yönetim Sistemi
Türk Spor ve Egzersiz Dergisi, cilt.22, sa.2, ss.279-287, 2020 (Hakemli Dergi)
The aim of this study is to investigate the effect of anterior cruciate ligament (ACL) reconstruction on tibial torsion angle(TTA) in the operated limb using computed tomography (CT) and physical examination methods and to show the relationshipbetween post-operative muscle strength features and TTA by using isokinetic dynamometer. 21 patients between 18 and 36years old (25.4±6.8) who underwent ACL reconstruction with hamstring tendon (HT) autograft and then completed the ACLrehabilitation were included in this study. Isokinetic strength measurements were evaluated by Biodex-Multi Joint System-Pro4 dynamometer. To evaluate TTA; CT, transmalleolar and thigh-foot angle (TFA) measurements were carried out. There was nosignificant TTA differences between 21 operated and non-operated knees for any method (p> 0.05). At the isokinetic evaluationto the extension direction there were a significant differences 60-180º/sec in peak torque value (p=0,0001, p=0,003) and averagepower value (p=0,004, p=0,002). As the percentage of losses in peak torque value to the flexion direction at velocity of 180 º/secincreases, the CT diagnosed angle difference between both knees increases. (p<0,01, r=0,548) As the percentage of losses inaverage power value to the extension direction at the velocity of 60 º/sec increases, the TFA difference between both kneesincreases. (p<0,01, r=0,563) . The isokinetic evaluation findings show that the strength loss between the knees increases the TTAdifferences. This finding shows the relationship of post-op rehabilitation with TTA varies and re-injury risk. In the isokineticevaluation, subjects with high loss of strength in the direction of flexion at 180º/sec velocity had higher TTA differences, sorehabilitation protocols should be also focused on muscle endurance.