As a result of an injury of the knee joint a patient shows a drawer sign, that is the anterior and posterior displacement of the tibia relative to the femur. What ligaments are damaged?

Answer options

1. Collateral ligaments
2. Arcuate popliteal ligaments
3. Cruciate ligaments
4. Interosseous membrane
5. Oblique popliteal ligament

Explanation

“Drawer sign”- the ability to move the tibia forward when the femur is fixed is a positive drawer sign which indicates rupture of only cruciate ligaments.