What is the indication for performing the Trendelenburg Test?

• A. Weakness of the gluteus medius
• B. Labral tear in the hip
• C. Meniscus injury
• D. Hip flexor strain

Answer: (A)

The Trendelenburg Test is specifically designed to assess the strength and function of the gluteus medius muscle. This test evaluates the ability of the gluteus medius to stabilize the pelvis during single-leg stance. When a person stands on one leg, the contralateral side of the pelvis should remain level; if the gluteus medius on the standing leg is weak, the pelvis will drop on the opposite side, resulting in a positive Trendelenburg sign.

Weakness in the gluteus medius can lead to pelvic instability and compensatory movement patterns, which may result in further musculoskeletal issues. Therefore, a positive Trendelenburg Test indicates that there is weakness in the gluteus medius muscle, making it the correct indication for performing this test.

Other conditions like labral tears, meniscus injuries, or hip flexor strains are related to different anatomical structures and do not specifically indicate a need for the Trendelenburg Test. These conditions would typically require other assessments focused on joint stability, range of motion, and functional testing that are distinct from assessing gluteus medius strength.