Injuries to the posterior cruciate ligament (PCL) have traditionally been reported to be rare but in the last decade, this ligament has captured the attention of orthopaedic surgeons world-wide. While new or improved surgical techniques involving the PCL have achieved attractive results, accurate evaluation of the PCL-deficient knee still remains a challenge. Despite the greater use of new, more sensitive clinical testing, stress radiography and MRI, correct diagnosis and staging of the PCL tear is still difficult. The objective of this paper is to provide an up-to-date review regarding diagnosis and treatment of the PCL tear.