Biceps Crease Interval (BCI) Special Test

What is it used for?

• Diagnosing Distal Biceps Tendon Rupture.

How to Perform

• Action: Measure the distance between the antecubital crease (elbow fold) and the cusp of the biceps muscle belly.

Interpretation of Results

• Positive Test: A distance > 6.0 cm (or significantly greater than the unaffected side) indicates a rupture/retraction.

Diagnostic Accuracy

• Sensitivity: 100%
• Specificity: 100%

References

• Magee, D. J. (2021). Orthopedic Physical Assessment.