What does Ober's test evaluate?

Ober's test is specifically designed to evaluate tightness or dysfunction of the iliotibial band (IT band). During the test, the examiner allows the affected leg to drop toward the table while keeping the opposite leg stabilized. If the leg does not drop and remains elevated, it suggests tightness of the IT band or possible issues related to iliotibial band syndrome. This condition is often associated with lateral knee pain due to the IT band’s friction over the lateral femoral epicondyle.

In contrast, other choices focus on different aspects of hip and knee pathology. Patellar stability assessment typically involves tests like the Lachman test or the Varus/Valgus stress tests, which are used to check the integrity of ligaments around the knee. Hip dislocation and groin strain evaluations would include different physical examination techniques, focusing on hip mobility, strength, and specific movements that elicit pain. Therefore, Ober's test is distinctly related to evaluating the IT band, affirming that the correct answer pertains to iliotibial band syndrome.