Correlation of Isokinetic Testing and ACL Failure With the Short Graft Tape Suspension Technique at Six Months
Résumé
The objective of this study was to correlate the data of the 6-month postoperative isokinetic muscle evaluation before resuming sports activities with the occurrence of ACL reconstruction rerupture after semitendinosus short graft. Methods: From 2015 to 2018, all patients who were operated for an ACL reconstruction with a short semitendinosus autograft (TLS System) and who performed isokinetic tests on dynamometer at their 6th postoperative month were included in this study. The follow-up was prospective with the measurement of epidemiological, radiographic, and isokinetic parameters at 6 months of the ACL reconstruction. The cohort was divided into 2 groups: one group without an ACL reconstruction rerupture (Group 1) and the second group with a rerupture (Group 2). Results: One hundred and four patients were analyzed with an average follow-up of 42.3 months (Minimum: 24; Maximum: 63.5), of which 11 patients (10.6%) had an ACL reconstruction rerupture. Group 1 consisted of 93 patients with an average age of 26.5 AE 9.0 years old who did not have an ACL reconstruction rerupture with an average follow-up of 41.6 AE 12.1 months. Group 2 consisted of 11 patients with an average age of 22.7 AE 6.1 years old, who had an ACL reconstruction rerupture with an average follow-up of 44.8 AE 11.3 months. Concerning extension force recovery, the ratio between operated and healthy knee was 81.8% AE 32.0 for Group 1, and 53.4% AE 20.6 for Group 2 (P ¼ .035). A statistically significant difference was also found (P ¼ .0017) during 60 /s flexion isokinetic test between the two groups. Conclusions: This study revealed a significant link between muscle weakness in flexion and extension during 60 /s isokinetic test at 6 months of ACL reconstruction and semitendinosus autograft rerupture. Patients with an ACL reconstruction retear had inferior muscle dynamometric recovery results at 6 months before resuming sports activities.
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