The function of the<unk>  cruciate<unk>  (PCL) is to prevent the femur from sliding off the anterior edge of the tibia and to prevent the tibia from displacing<unk>  to the femur. Common causes of PCL injuries are direct blows to the flexed knee, such as the knee hitting the dashboard in a car accident or falling hard on the knee, both instances displacing the tibia<unk>  to the femur. Surgery to repair the<unk>  cruciate<unk>  is controversial due to its placement and technical difficulty. The<unk>  drawer test is one of the tests used by doctors and physiotherapists to detect injury to the PCL. An additional test of<unk>  is the<unk>  sag test, where, in contrast to the drawer test, no active force is applied. Rather, the person lies supine with the leg held by another person so that the hip is flexed to 90 degrees and the knee 90 degrees. The main parameter in this test is step-off, which is the shortest distance from the femur to a hypothetical line that tangents the surface of the tibia from the tibial tuberosity and upwards. Normally, the step-off is approximately 1 cm, but is decreased (Grade I) or even absent (Grade II) or inverse (Grade III) in injuries to the<unk>  cruciate<unk> . Patients who are suspected to have a<unk>  should always be evaluated for other knee injuries that often occur in combination with an PCL injuries. These include cartilage/meniscus injuries, bone bruises, ACL tears, fractures, posterolateral injuries and collateral<unk>  injuries.
Posterior cruciate ligament injury
Anterior cruciate ligament injury
Pes anserine bursitis
Rotator cuff tear
Medial knee injuries
Patellar dislocation
Patellar subluxation syndrome
Discoid meniscus