Hi
You should know every anatomy of this joint, WHY?
Largest joint in the body, most extensively used & most 'ABUSED'
Hinge joints move in only one plane-flexion/extension, but the knee is modified hinge as during beginning of flexion--there is lateral rotation of femur & at the end of extension--medial rotation of femur. Hence rotation in mild degree is accompanied both in flexion & extension
Enjoy this video--showing a simple anatomy of knee joint
