## **Core Concept**
The drawer test is a clinical examination technique used to assess the integrity of ligaments in the knee joint, specifically the **anterior cruciate ligament (ACL)** and **posterior cruciate ligament (PCL)**. This test helps in diagnosing knee instability due to ligamentous injuries.

## **Why the Correct Answer is Right**
The drawer test is performed with the knee flexed at 90 degrees, and the examiner applies an anterior or posterior force to the tibia relative to the femur. The test is positive for **ACL injury** if there is excessive anterior movement of the tibia (anterior drawer test) and for **PCL injury** if there is excessive posterior movement (posterior drawer test). This test directly assesses the function and integrity of these ligaments.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because the drawer test is not primarily used for testing meniscal injuries. Meniscal injuries are typically assessed with other tests like the McMurray's test.
- **Option B:** This option is incorrect as the drawer test does not assess collateral ligament injuries. Collateral ligament injuries are evaluated with varus and valgus stress tests.
- **Option C:** Although this option might seem related, the drawer test specifically targets the cruciate ligaments, not the general stability provided by all ligaments and tendons around the knee.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the drawer test can be modified based on the degree of knee flexion, and it's crucial to compare the findings with the unaffected knee. The test's sensitivity can be increased by performing it at different angles of knee flexion.

## **Correct Answer:** C. Cruciate ligament.