Dynamic Internal Rotatory Impingement Test

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• Dynamic Internal Rotatory Impingement Test
• DIRI Test (Dynamic Internal Rotatory Impingement)

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Purpose

Dynamic internal rotatory impingement (DIRI) test. A, DIRI begins with the hip at 90 degrees flexion or beyond. B, It is then passively taken through a wide arc of adduction and internal rotation (arrows) while decreasing flexion to about 80 degrees.

• To evaluate the hip for signs of FAI/ impingement

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Description

• The patient is in a supine position
• Patient holds opposite leg in flexion beyond 90°
  • This flattens pelvic tilt/lumbar lordosis
• Then dynamically FADIR affected hip through an arc from neutral positioning
• Positive test
  • Anterior groin pain

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Pathology

• Femoroacetabular Impingement

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Evidence

• Unknown

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See Also

• Physical Exam Hip
• Hip Pain (Main)
• Hip Anatomy

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