Medbridge Orthopedic Clinical Specialist (OCS) Test 1 Practice

Which test assesses iliopsoas tightness?

Obers test Thomas test Patrick's test Trendelenburg test

Correct Answer:

Thomas test

Explanation:

Assessing hip flexor tightness, specifically iliopsoas, with a simple supine test. In this test the patient lies on their back and one knee is brought to the chest to flatten the lumbar spine. The other leg is allowed to rest on the table. If that leg cannot lie flat on the table and the hip remains flexed (the thigh may rise off the table or the knee cannot fully extend), this indicates a tight iliopsoas on the tested side. A normal result is when the leg on the table lies flat with the knee extended, meaning there is no hip flexion contracture. Other tests target different structures: Obers tests the iliotibial band, Patrick’s (FABER) tests hip joint or sacroiliac pathology and hip flexor tightness, and Trendelenburg assesses abductor weakness.

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