Evaluation of ankle and foot functions after Peroneus Longus tendon harvesting in Anterior Cruciate Ligament reconstruction

Introduction: The use of peroneus longus tendon in ACL reconstruction has been increasing in the last few years because of its adequate length and less donor site morbidity. This study aims to evaluate ankle and foot functions after peroneus longus tendon harvesting in ACL reconstruction.Methods: This is hospital based cross-sectional observational study which include 98 patients with age group 18-54 years with ACL reconstruction with peroneus longus tendon at least twelve months completed prior to study operated between January 2022 to October 2024 at UCMS who meets inclusion criteria and final outcome is measured by AOFAS scoring system, VAS score and ankle ROM.Results: The mean age of patients was 34.31±9.33 years (range, 18-54 years), with a female predominance (60.20%). Most of them were office workers (42.85%), and the most common mechanism was RTA (55.1%), followed by sports injuries (33.67%). The AOFAS score in the normal ankle was 96.55 ± 1.07, and in the operated side was 95.40 ± 1.17, which was not statistically significant (P>0.05) up to 17.19 months. The mean ankle dorsiflexion, plantar flexion, eversion, and inversion of the normal side were 17.28,45.76,16.66 and 33.47 degrees, respectively. Likewise, dorsiflexion, plantar flexion, eversion and inversion on the operated side were 17.18,45.22,16.44 and 33.36 degrees, respectively. In range of motion, only eversion was statistically significant (P=0.013).Conclusion: The study concludes that peroneus longus harvesting has no major functional impairment in ankle or foot function.