During a positive Trendelenburg test, standing on the affected leg causes which observable change?

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Prepare for the APEA Management Orthopedics Test using flashcards and multiple choice questions, complete with hints and explanations for effective learning. Gear up for your test now!

Multiple Choice

During a positive Trendelenburg test, standing on the affected leg causes which observable change?

Explanation:
The test assesses hip abductor strength, especially the gluteus medius and minimus on the stance leg. When you stand on one leg, these muscles contract to keep the pelvis level. If they’re weak on the supported (stance) leg, the pelvis can’t stay level and will drop toward the opposite side. That means you’ll observe the unaffected hip sitting lower than the supported side. The key sign is a contralateral pelvic tilt (the pelvis tilts with the non-stance side lower).

The test assesses hip abductor strength, especially the gluteus medius and minimus on the stance leg. When you stand on one leg, these muscles contract to keep the pelvis level. If they’re weak on the supported (stance) leg, the pelvis can’t stay level and will drop toward the opposite side. That means you’ll observe the unaffected hip sitting lower than the supported side. The key sign is a contralateral pelvic tilt (the pelvis tilts with the non-stance side lower).

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