Early attempts to repair the posterior cruciate ligament (PCL) were often disappointing due to the limitations of the technology available at the time. The extended periods of knee immobilization required to protect the repaired PCL frequently led to severe knee stiffness and poor outcomes.

The focus has shifted to removing the torn PCL and reconstructing it using hamstring tendons or other tissues harvested from different parts of the body. With advancements in biological understanding and cellular functions, the importance of mechanoreceptors—nerve cells in the PCL—has been recognized. These receptors detect stretch on the PCL and reflexively activate the hamstrings and quadriceps to protect the ligament from injury. Unfortunately, during PCL reconstruction, these mechanoreceptors are surgically removed, leading to a loss of reflexive protection. This increases the likelihood of PCL re-injury and knee arthritis.

The introduction of the Fiber tape internal brace has revolutionized PCL repair. This technique allows the torn PCL to be repaired and protected by the Fiber tape internal brace during the healing period, enabling immediate knee mobilization post-surgery. The Fiber tape internal brace, only 2mm thick, does not replace the original PCL but rather protects it during healing, preserving the original PCL tissue and mechanoreceptors. This approach leads to better outcomes, quicker return to sports and work, and greater patient confidence in their knee. Patients experience less pain, swelling, muscle wasting, and improved overall results. The chances of re-injury and future arthritis are significantly reduced, and patients can typically resume sports within three months of surgery.

PCL repair with the internal brace differs significantly from PCL reconstruction. It is less traumatic for the knee joint, does not involve harvesting hamstring tendons or drilling large bone tunnels, and allows for faster recovery with a more stable knee.

Arthroscopic minimally invasive PCL avulsion repair surgery is designed for PCL avulsions with a tibial footprint fracture. The goal is to preserve the original PCL rather than reconstruct it. This advanced fracture fixation technique facilitates early mobilization, allowing athletes to return to sports and running within three months of surgery.