Posterior cruciate ligament (PCL) is the largest and strongest ligament of the knee, functioning as a central pivot against the posterior translation of the tibia. The treatment of the isolated PCL injury has been debated along with ongoing debate on single or double bundle reconstruction. Recent biomechanical studies support double bundle reconstruction due to the fact that both the bundles are functional in resisting posterior tibial translation at all flexion angles of the knee. This chapter attempts to present an overview of the current concepts in PCL injuries. Isolated PCL injuries are rare and 95% of PCL injuries have associated ligament injury requiring an operative intervention. Isolated PCL injuries can be treated conservatively owing to its relatively better blood supply. This chapter gives a rehabilitation protocol for these injuries. While performing the PCL reconstruction, the in-depth knowledge of arthroscopic anatomy is essential and arthroscopic landmarks for a successful reconstruction are mentioned in the text.