Bicipital Aponeurosis Flex Test Special Test
Orthopedic Physical Examination & Clinical Assessment Guide
What is it used for?
- Confirming complete distal biceps rupture (checking if the aponeurosis is intact).
How to Perform
- Position: Patient actively flexes the wrist and makes a fist (supinated arm).
- Action: Patient flexes the elbow to 75°.
- Palpation: Examiner feels for the sharp edge of the bicipital aponeurosis in the medial antecubital fossa.
Interpretation of Results
- Positive Test: The aponeurosis is not palpable (indicates rupture).
Diagnostic Accuracy
- Sensitivity: 100%
- Specificity: 90%
Clinical Context & Limitations
The Bicipital Aponeurosis Flex 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 Elbow region, combining the Bicipital Aponeurosis Flex Test with complementary examination tests significantly improves overall diagnostic confidence.
References
- Magee, D. J. (2021). Orthopedic Physical Assessment.
