Anatomy Locking of knee joint occurs due to – A Lateral rotation of femur during last degrees of extension. B Medial rotation of femur during last degrees of extension C Lateral rotation of femur during last degrees of flexion D Medial rotation of femur during last degrees of flexion 💡 Explanation Locking of knee joint occurs due to - ✓ Correct Answer: B. Medial rotation of femur during last degrees of extension