Comparison of Doubled Semitendinosus and Gracilis Autograft Versus Bone-Patellar Tendon-Bone Autograft for Reconstruction of the Anterior Cruciate Ligament

Abstract

Background: The choice of graft for anterior cruciate ligament (ACL) reconstruction is a matter of debate with hamstring and bone-patellar tendon-bone being the most popular autologous graft options. Objective: The objective of this study was to conduct a prospective randomized control trial comparing doubled semitendinosus and gracilis graft versus bone-patellar tendon-bone graft. Materials and Methods: Sixty patients with chronic unilateral rupture of ACL underwent arthroscopically assisted ACL reconstruction using quadrupled hamstring and bone-tendon-bone graft after randomization. Both groups were comparable with demographic data, preoperative activity level, mechanism of injury, the interval between injury and operation, and preoperative laxity of the knee. The same well-proved surgical technique and aggressive rehabilitation were used in all cases. The outcome assessment was done using the visual analog scale, Lysholm score, Tegner activity level, and International Knee Documentation Committee (IKDC) evaluation system. Results: At 2-year follow-up, we found that results within the same groups showed statistically significant improvement as assessed by IKDC, Tegner’s, and Lysholm operative scores. There was also a significant correlation between the manual Lachman test and stress laxometry findings. There was no statistically significant difference between the scores of the two groups (hamstring and bone patella tendon). In the hamstring group, we recorded a higher incidence of femoral tunnel widening, and in the bone-patellar tendon-bone group the higher incidence of kneeling discomfort and increased area of decreased sensation in the skin. Conclusions: Arthroscopic ACL reconstruction by either hamstring tendon graft or bone-patellar tendon-bone graft gives equally satisfactory results.