Revision anterior cruciate ligament reconstruction using the ipsilateral Quadriceps tendon autograft: a modular reconstructive option.

Purpose: Failed ACL reconstruction is a common occurrence nowadays due to the increased incidence of ACL surgeries and return to full activities following the surgery. Several challenges might stand in the face of this revision surgery particularly the graft harvest and its suitability to the situation with possible widening of the tunnel and the avoidance of additional morbidity at the contralateral side or anterior knee pain as in patellar tendon harvest. The aim of this study is to evaluate the ipsilateral quadriceps tendon as a source of autograft in revision ACL surgery which constitutes a viable option that can potentially decrease the morbidity of the procedure, and meanwhile provide a graft substitute that can be tailored to suit the dilated tunnels commonly encountered in revision surgery, thus giving the patients a good potential for better functional outcome. Methods: Revision anterior cruciate ligament reconstruction was done in 30 patients using the ipsilateral quad tendon as a pure soft tissue or with a bony fragment. Results: The mean subjective international Knee Documentation Committee score (IKDC score) at two years follow-up was 65.83 ± 7.20. There is statistically significant improvement of the objective as well as the subjective IKDC scores at the end of follow-up when compared to the preoperative as well as the 6-month evaluation figures. The KT1000 arthrometer recorded a mean of 4.50 ± 1.07. Significant improvement of the limb symmetry index was at two years duration. Conclusions: The quadriceps tendon can be a solution for several challenges that might appear during the revision ACL surgery with comparable results to other tendons and with minimal morbidity on the function of the harvested muscle tendon. [ABSTRACT FROM AUTHOR]