Background The anterior cruciate ligament (ACL) reconstruction is one of the most frequent surgeries on the adult knee. Auto grafts are essential for providing knee stability while minimizing donor site morbidity. The peroneus longus tendon may be an alternative Auto graft for ACL reconstruction. This study aimed to evaluate the short-term clinical outcomes and donor site morbidity of ACL reconstruction using the peroneus longus tendon. Methods This cross-sectional study was conducted on patients with an ACL tear, who underwent arthroscopic reconstruction using the peroneal longus tendon. The knee functional outcomes were investigated based on the Lysholm and IKDC scores at preoperative and end of at least one year after the procedure. The follow-up period was at least one year, and the graft diameter was measured intra-operatively. In addition, the American Orthopaedic Foot and Ankle Score (AOFAS), the Foot & Ankle Disability Index (FADI), and ankle range of motion were applied to evaluate ankle donor site morbidities. Results A total of 50 patients (47 men and three women) were followed up for at least one year with a mean age of 24. 2 years (17 to 50 years old). The mean follow-up time was 19 months (12-24 months). The mean diameter of the peroneal longus Auto graft was 8. 22 ±,0. 5 mm (7-9 mm). The AOFAS, FADI and ankle range of motion indicated no obvious ankle joint dysfunction. Conclusion According to the results, arthroscopic anterior cruciate ligament reconstruction with the peroneal longus tendon is be a safe and effective Auto graft source.

Background: It was suggested that the direction of incision for medial hamstring tendons harvesting influences the incidence of injury to the infrapatellar branch of the saphenous nerve (IPBSN), a common complication following arthroscopically-assisted anterior cruciate ligament reconstruction (ACLR). Objectives: The main purpose of current study was to compare the incidence of IPBSN injury between vertical and oblique incisions utilizing electrophysiological evaluation.Patients and Methods: There were 60 patients underwent arthroscopically-assisted ACLR assigned to two equal vertical or oblique incision groups, randomly. One year postoperatively, the patients were electrophysiologically examined to detect whether IPBSN is injured. The Lysholm score was completed. The patients' satisfaction with surgical outcomes determined utilizing visual analogue scale (VAS). Finally, two groups were compared and the effect of IPBSN injury on function and satisfaction was investigated.Results: The incidence of IPBSN injury was higher in the vertical group (4 patients vs.10 patients), but the difference was not statistically significant. The mean of Lysholm and VAS scores were the same. Also, the mean of Lysholm score was the same in patients with and without IPBSN injury. However, patients without IPBSN injury were more satisfied (8.9±9 vs.7.4±1.1; P<0.001). Conclusions: IPBSN injury is a common complication following arthroscopically-assisted ACLR and, if not significant, oblique direction of the incision is associated with decreased incidence of the injury. IPBSN injury has no effect on the function but because of the disturbance with patients' satisfaction, authors believe the oblique incision is preferable to avoid the nerve injury during medial hamstring tendons harvesting.