Trendelenburg Test | Rationale & Interpretation

The video tutorial explains the Trendelenburg test, a diagnostic tool for assessing gluteus medius function and superior gluteal nerve integrity. It details the procedure, including transitioning from double to single leg support, and defines key terms like ipsilateral and contralateral. The tutorial describes normal pelvic movements during the test and how abnormalities, such as gluteus medius weakness or nerve palsy, lead to a positive test result. It concludes with guidance on assessing pelvic drop by palpating the iliac crests.

What is the primary purpose of the Trendelenburg test?

• To measure ankle flexibility

• To test quadriceps strength

• To evaluate gluteus medius function

• To assess knee joint stability

During single leg support, which side's gluteus medius is expected to activate?

• Neither side

• Contralateral side

• Ipsilateral side

• Both sides equally

What is the typical pelvic movement during normal single limb support?

• 10 degrees of ipsilateral drop

• 5 degrees of contralateral drop

• 5 degrees of ipsilateral drop and 5 degrees of contralateral rise

• No movement at all

What indicates a positive Trendelenburg test?

• No pelvic movement

• Contralateral pelvic rise

• Ipsilateral pelvic drop

• Contralateral pelvic drop

How should the examiner position their hands to assess pelvic movement during the Trendelenburg test?

• On the patient's knees

• On the lateral iliac crests

• On the patient's shoulders

• On the patient's ankles