Ultrasound
Complete discontinuity of the distal biceps tendon with 22 mm retraction of the torn end. A tiny bone flake in the torn end. Normal myotendinous junction and muscle belly. No large local fluid collection. Short-axis cine-loop runs from the proximal to the distal direction. It shows a tiny bone flake followed by an absent tendon.
The contralateral asymptomatic distal biceps tendon is intact.