Distal Biceps Tendon Rupture Requires an MRI to Determine Whether Injury is Complete or Incomplete and the Extent of Secondary Damage

Proximal or distal biceps tendon ruptures are a common problem in traumatology, but their diagnostic and therapeutic management varies greatly and does not follow universal standards. Diagnosis of distal biceps tendon ruptures by point-of-care ultrasound is a promising approach, but has some drawbacks. Compared to MRI, ultrasound cannot reliably document the secondary damage caused by the rupture and is also not suitable for distinguishing between complete and incomplete rupture. Therefore, it is desirable to assess the sensitivity and specificity of point-of-care ultrasound for diagnosing distal biceps tendon ruptures through a prospective, multicentre study using MRI as the gold standard for comparison.