Overview
what it is and why it mattersDistal triceps tendon ruptures are the least common tendon rupture in the upper extremity. The triceps attaches to the olecranon at the back of the elbow and extends the forearm. Ruptures occur from a fall onto an outstretched arm or an eccentric load during push-off. Risk factors include anabolic steroid use, local corticosteroid injections near the tendon, renal failure, and hyperparathyroidism. Complete tears cause inability to extend the elbow against gravity.
Diagnosis
exam first, imaging secondPosterior elbow pain and swelling after trauma, with weakness or inability to extend the elbow. A palpable defect posterior to the olecranon is present in complete tears. X-rays may show a fleck of avulsed bone ("flake sign") at the olecranon. MRI confirms the diagnosis and tear extent.
Treatment Path
how care progresses at OSI1
Non-operative management
For partial tears without extensor mechanism disruption — protected positioning through the early immobilization phase.
Surgical Options at OSI
if non-operative care isn't enoughComplete triceps ruptures with inability to extend the elbow should be repaired promptly.
Providers Who Treat Distal Triceps Tendon Rupture
sports-medicine team
Further Reading
authoritative sourcesExternal patient-education references and related OSI pages for additional background: