What is the primary purpose of the Stork test?

What is the primary purpose of the Stork test?

• A. To assess knee stability during leg raise
• B. To assess sacroiliac joint motion during hip flexion
• C. To measure lumbar range of motion
• D. To evaluate ankle dorsiflexion

Answer: (B)

Focus on what the test stresses: the sacroiliac joints. The Stork test has a person stand on one leg while the other knee is lifted into hip flexion, loading the pelvis and placing the SI joints under stress as the sacrum moves relative to the ilium. Pain or unusual movement during this single-leg stance suggests sacroiliac joint dysfunction or abnormal mobility, which is exactly what this test is meant to uncover. It isn’t about knee stability during a leg raise, lumbar range of motion, or ankle dorsiflexion, which are assessed by other maneuvers or tests.

Focus on what the test stresses: the sacroiliac joints. The Stork test has a person stand on one leg while the other knee is lifted into hip flexion, loading the pelvis and placing the SI joints under stress as the sacrum moves relative to the ilium. Pain or unusual movement during this single-leg stance suggests sacroiliac joint dysfunction or abnormal mobility, which is exactly what this test is meant to uncover. It isn’t about knee stability during a leg raise, lumbar range of motion, or ankle dorsiflexion, which are assessed by other maneuvers or tests.