A triceps rupture is the complete tearing of the triceps tendon from the olecranon bone at the back of the elbow. This injury is relatively rare and typically occurs during a sudden eccentric load, such as falling onto an outstretched hand or experiencing a heavy weight during a bench press or skull crusher exercise.
When the tendon fully detaches, the ability to straighten the arm is severely compromised.
The Pop: A loud snapping sound at the back of the elbow at the moment of injury.
Visible Gap: A palpable depression or hollow space just above the bony tip of the elbow where the tendon used to be.
Inability to Extend: A total or near total inability to straighten the elbow against any gravity or resistance.
Swelling and Bruising: Rapid inflammation and extensive bruising that may travel down toward the wrist.
Clinical examination is highly effective because the triceps is a superficial muscle.
Physical Exam
X-rays: These are used to check for an avulsion fracture, which is when the tendon pulls a small piece of the elbow bone away with it.
MRI: This is the gold standard to confirm if the tear is complete or high grade partial and to measure how far the muscle has snapped back.
Surgical Repair: Unlike some other injuries, a complete triceps rupture almost always requires surgical intervention for functional recovery.
Non Surgical Option: This is rarely chosen and is typically reserved for patients with low physical demands who are willing to accept a permanent inability to push or straighten the arm with force.