Clinical Outcome Comparing Poly-L-lactic acid (PLLA) Bioabsorbable Interference Screws and Cortical Button-Post Fixation in Arthroscopic Anterior Cruciate Ligament Reconstruction

A good fixation for anterior cruciate ligament reconstruction with hamstring tendons graft is important to withstand the stress on the graft resulting from post-operative rehabilitation. The optimal hamstring tendons graft fixation method remains uncertain within the sports medicine literature. The most used fixation techniques include: suspensory fixation with cortical-buttons, transfemoral fixation with cross-pins, and tunnel aperture fixation with interference screws. Patient recruitment and baseline data collection of this study were done at our hospital between July 2011- March 2016. In this study we included the records of 80 patients with an ACL rupture who elected to undergo ACL reconstructive surgery with allograft tissue. In our study the patients were mixed in 2 groups: (A) patients with interference bone screw group used for anterior ligament reconstruction graft fixation in both the femur and tibia and (B) patients with the cortical flip button group underwent graft fixation with the button on the femoral side and an interference screw on the tibial side. Our clinical study shows no significant differences in the patients� outcomes after using these two fixation devices.