This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2017, Subject name: Orthopaedics
All are true about PCL except? 
Select and explain. 
A. It's a extra synol structure, B. Primary restrain for post dislocation of knee joint, C. Primary restrain for internal rotation around knee joint, D. Attached to medical femoral condyle
C: Primary restrain for internal rotation around knee joint
Answer: C: Primary restrain for internal rotation around knee joint 
Explanation: * Both ACL and PCL are intra-capsular, extra synol structures.* PCL prevents posterior dislocation of knee joint* PCL is attached to medial femoral condyle * It is a restraint for external rotation of the leg hence, PCL is tested by external rotation on Dial test