(+) Trendelenburg Sign EXPLAINED

The video tutorial by Kevin Tolkoff focuses on understanding the Trendelenburg sign, a condition related to hip abductor weakness or nerve damage. It explains the difference between normal and positive Trendelenburg signs, highlighting the role of the gluteus medius and superior gluteal nerve. The tutorial includes real-life examples and detailed analysis of pelvic mechanics during gait, emphasizing the importance of pelvic stabilization.

What is the primary muscle involved in the Trendelenburg sign?

• Gluteus maximus

• Gluteus medius

• Quadriceps

• Hamstrings

During normal gait, how much should the pelvis rotate?

• 10 degrees

• 15 degrees

• 5 degrees

• 20 degrees

What happens to the pelvis in a positive Trendelenburg sign?

• Ipsilateral side drops

• Contralateral side elevates

• Ipsilateral side elevates

• No change in pelvic position

Which nerve is associated with the Trendelenburg sign?

• Inferior gluteal nerve

• Superior gluteal nerve

• Femoral nerve

• Sciatic nerve

In the example of a left gluteus medius weakness, what is observed during left single limb support?

• No change in pelvic position

• Left side drops

• Right side elevates

• Right side drops

What is the role of the gluteus medius during single limb support?

• To flex the hip

• To extend the hip

• To stabilize the pelvis

• To abduct the hip

What happens if the right gluteus medius is weak during right single limb support?

• No change in pelvic position

• Right side elevates

• Left side elevates

• Right side drops