The biceps muscle is located in the front of your upper arm. It is attached to the bones of the shoulder and elbow by tendons — strong cords of fibrous tissue that attach muscles to bones.
Tears of the biceps tendon at the elbow are uncommon. They are most often caused by a sudden injury and tend to result in greater arm weakness than injuries to the biceps tendon at the shoulder.
A distal biceps tendon rupture, or tear, occurs when the tendon attaching the biceps muscle to the elbow is torn from the bone. This injury occurs most frequently in middle-aged men during heavy work, lifting or weightlifting. A distal biceps rupture is rare, compared to ruptures where the top of the biceps connects at the shoulder.