An ideal surgical treatment of acute Achilles tendon rupture includes restoring the original length of the tendon, minimizing possible adhesions with the surrounding tissues, minimizing the risk of repeat rupture, alleviating wound problems, and providing an acceptable cosmetic outcome. In the mini-open repair technique, unlike the percutaneous repair technique, the quality of the tenodesis can be visualized without disturbing the healing potential of the surrounding tissues, thus minimizing wound problems. The purpose of the present study was to assess the long-term results of the mini-open repair technique in patients with acute Achilles tendon rupture. A total of 20 consecutive patients with acute Achilles tendon rupture, admitted to our inpatient clinic from October 2003 to March 2008, were included in the present study. The patients underwent Achilles tenodesis with the mini-open repair technique, and each patient was followed up for 5 years. The study was completed in April 2013. The surgical procedure was performed with the assistance of a device designed in our orthosis laboratories, similarly to that defined by Assal et al. Of the 20 patients, 18 were male and 2 were female. Their mean age was 39.3 (range 21 to 55) years. The Achilles tendon rupture was located on the left side in 15 patients (75%) and on the right side in 5 patients (25%). The mean follow-up duration was 58.5 (range 18 to 60) months and no complications occurred during the follow-up period, including repeat rupture, wound site infection, and sural nerve injury. The mean American Orthopaedic Foot and Ankle Society scale score for the patients was 99.2 (range 94 to 100) points at the final follow-up visit. All our patients were able to return to work and sporting activities. According to the Trillat scores, the outcome was excellent in 19 patients and good in 1 patient at the 18th postoperative month. No complaint, such as pain or loss of function, that might have a negative effect on the patients' business or social life was detected in 18 patients who were assessed at 5 years after surgery; 2 patients could not be reached at 5 years. In conclusion, as a technique combining percutaneous and open surgical techniques, mini-open repair of Achilles tendon rupture allows a satisfactory end-to-end approximation of the tendon just in the open surgery and provides the wound healing advantages of percutaneous surgery. (C) 2016 by the American College of Foot and Ankle Surgeons. All rights reserved.