What is the FADDIR Test used for?

Diagnosing Femoroacetabular Impingement (FAI) and Anterior Labral Tears.FADDIR: Flexion, ADDuction, Internal Rotation.

How do you perform the FADDIR Test?

Position: Patient lies supine. Action: Flex the hip to 90°, then Adduct and Internally Rotate the hip.

What is a positive result for the FADDIR Test?

Positive Test: Reproduction of groin pain, with or without a mechanical click.

What is the diagnostic accuracy of the FADDIR Test?

Sensitivity: 90-99% (Excellent screening test).Specificity: Low (False positives are common).

FADDIR Test – Hip Special Test

What is it used for?

Diagnosing Femoroacetabular Impingement (FAI) and Anterior Labral Tears.
FADDIR: Flexion, ADDuction, Internal Rotation.

How to Perform

Position: Patient lies supine.
Action: Flex the hip to 90°, then Adduct and Internally Rotate the hip.

Interpretation of Results

Positive Test: Reproduction of groin pain, with or without a mechanical click.

Diagnostic Accuracy

Sensitivity: 90-99% (Excellent screening test).
Specificity: Low (False positives are common).

Clinical Context & Limitations

The FADDIR Test should be considered as one component of a comprehensive musculoskeletal assessment. No single special test has perfect diagnostic accuracy; thus, clinical decision-making should integrate test results with patient-reported symptoms, mechanism of injury, functional impairment, and relevant imaging.

Clinicians should be aware of potential false-positive results in patients with pain sensitisation, muscle guarding, or poor relaxation. For the Hip region, combining the FADDIR Test with complementary examination tests significantly improves overall diagnostic confidence.