During which test are the posterior superior iliac crests palpated while the patient flexes forward to observe movement?

During which test are the posterior superior iliac crests palpated while the patient flexes forward to observe movement?

• A. Navicular drop test
• B. Windlass test
• C. Stork test
• D. Standing Flexion Test

Answer: (D)

The test being described is about assessing sacroiliac joint motion by watching how the posterior superior iliac crests move as the patient bends forward. The main idea is to compare how the two PSISs ascend (move cephalad) during forward flexion. When movement is symmetrical, both crests rise together, indicating no obvious SI joint restriction. If one PSIS rises less than the other, it points to a dysfunction or fixation on that side of the sacroiliac joint. This specific observation during forward flexion helps localize SI joint involvement. Other tests in this area focus on different structures or movements. The navicular drop test evaluates foot arch height rather than pelvic motion. The Windlass test assesses plantar fascia tension as the toes are dorsiflexed. The Stork test checks balance and stability on one leg and can provoke pain but does not involve observing PSIS movement during forward flexion.

The test being described is about assessing sacroiliac joint motion by watching how the posterior superior iliac crests move as the patient bends forward. The main idea is to compare how the two PSISs ascend (move cephalad) during forward flexion. When movement is symmetrical, both crests rise together, indicating no obvious SI joint restriction. If one PSIS rises less than the other, it points to a dysfunction or fixation on that side of the sacroiliac joint. This specific observation during forward flexion helps localize SI joint involvement.

Other tests in this area focus on different structures or movements. The navicular drop test evaluates foot arch height rather than pelvic motion. The Windlass test assesses plantar fascia tension as the toes are dorsiflexed. The Stork test checks balance and stability on one leg and can provoke pain but does not involve observing PSIS movement during forward flexion.