Zhenlong Liu, Defu Liu, Tianying Tang, Tong Pan, Xintong Jiang, Xi Gong
The posterior cruciate ligament (PCL) is a critical stabilizing structure within the knee joint. Although its injury is relatively uncommon, severe cases can lead to significant dysfunction and long-term sequelae. PCL reconstruction is an essential treatment for PCL injuries, and among traditional techniques, trans-tibial interference screw fixation is a common method. However, due to the higher graft length requirement in PCL reconstruction, interference screw fixation is prone to fixation laxity resulting from insufficient graft length. To address the issue, we describe an improved PCL reconstruction technique utilizing an autologous hamstring tendon graft with tibial double knotless anchor fixation and femoral suspensory fixation. This method enhances graft-bone tunnel contact, effectively resolves fixation failure issues caused by graft length limitations, and provides greater fixation security and biomechanical advantages.