Lateral femoral epicondyle

Epicondylus lateralis femoris

How to find it: On the outer side of the knee, just proximal to the joint line.
What you use it for: Attachment of the fibular collateral ligament; the iliotibial tract slides over it at about 30 degrees of flexion, which causes the pain of runner's knee when it rubs.
On the bone: Femur
Body region: Knee