Overview
The triceps is the only muscle that straightens the elbow. Its tendon attaches to the olecranon, the bony point of the elbow. A distal triceps tear is a failure of the tendon at or near the bone, sometimes pulling a flake of the olecranon with it. It is the rarest of the major tendon ruptures, which is partly why it is often missed on the first visit.
Treatment is decided by how much of the tendon is torn and how much strength is left. A complete tear in an active person is repaired, ideally within a few weeks before the muscle retracts. Partial tears involving less than about half the tendon, with extension strength preserved, are braced and rehabilitated, and repaired only if they fail to settle. Low-demand older patients with complete tears sometimes choose to accept weakness rather than surgery.
Common Symptoms
- A pop at the back of the elbow during a fall or a heavy press, followed by pain and swelling over the point of the elbow
- A palpable dent or gap just above the tip of the elbow, easiest to feel in the first days before swelling fills it
- Weakness straightening the arm against resistance, or inability to straighten it overhead against gravity
- Bruising over the back of the elbow and upper forearm
An olecranon fracture produces the same loss of extension after the same kind of fall, and only the X-ray separates the two. Pain and swelling at the tip without weakness is usually olecranon bursitis. Deformity after high-energy trauma raises the question of a distal humerus fracture.
Causes & Risk Factors
The tendon fails when the triceps contracts hard while the elbow is being forced to bend: a fall on the outstretched hand, a missed bench press or dip, a fall onto the point of the elbow. Most patients are men between 30 and 50, often weightlifters or football linemen. Anabolic steroid use, repeated cortisone injections around the elbow, and kidney disease weaken the tendon. In older patients the tear is more often degenerative and partial, with a slow onset of pain.
How It Is Diagnosed
Dr. O'Donnell feels for a gap above the olecranon, tests extension strength with the arm overhead against gravity and then against resistance, and performs a modified Thompson test: with the arm hanging and the elbow bent, squeezing the triceps should straighten the elbow, and fails to when the tendon is torn. Extension that is weak but present can mean a partial tear or an intact anconeus muscle masking a complete one, so the exam alone is not trusted to call a tear partial.
A lateral X-ray is the first test and is often diagnostic, showing a small fleck of bone pulled off the olecranon (the flake sign) sitting above the elbow. It also excludes an olecranon fracture. MRI confirms whether the tear is complete or partial, how much of the tendon is involved, and how far it has retracted, which sets the treatment. Out-of-town patients can upload imaging through mymedicalimages.com before a telemedicine consultation.
Treatment Options
Non-operative care
Partial tears with less than about half the tendon involved and good extension strength are treated in a brace holding the elbow near straight for a few weeks, then progressed through motion and a graded strengthening program over about three months. A repeat exam at 6 to 8 weeks confirms strength is returning; a partial tear that stays weak or painful is repaired. Complete tears in low-demand patients with significant medical risk can be managed the same way, accepting permanent weakness.
Distal triceps repair
Complete tears, and partial tears involving more than half the tendon or leaving measurable weakness, are treated by distal triceps repair in anyone who works with their arms or plays sport. Through an incision over the back of the elbow the tendon is reattached to the olecranon with sutures passed through bone tunnels or anchors. Repair within 2 to 3 weeks is straightforward; after several weeks the tendon retracts and scars, and a chronic repair may need an augment from nearby tissue or a graft. The operation is outpatient at Bayside Surgery Center under a nerve block plus general anesthesia or sedation.
Recovery & What to Expect
After repair the elbow is protected near full extension, the position that relaxes the triceps, and flexion is added gradually because bending the elbow stretches the repair. Resisted extension waits until the tendon has healed to bone. The phases below follow Dr. O'Donnell's distal triceps repair protocol.
| Phase | Timing | What happens |
|---|---|---|
| Protection | Weeks 0–2 | Hinged brace holding the elbow near extension; active-assisted motion within brace limits; no active or resisted extension; no weight through the arm |
| Progressive motion | Weeks 2–6 | Flexion advanced gradually per brace schedule to full; active elbow and forearm motion without resistance; scar management; no forceful passive flexion |
| Strengthening | Weeks 6–12 | Light resisted extension from 6–8 weeks, progressed gradually; grip, forearm and endurance work |
| Return to activity | Months 3–5 | Advanced triceps strengthening and sport- or job-specific loading; heavy lifting, pressing and sport typically at 4–5 months on symmetric strength |
Desk work in the brace resumes within the first week. Driving is reasonable once the brace allows enough bend to reach the wheel and you are off pain medication, generally in the latter part of the brace period. The distal triceps repair protocol is available as a PDF.
Frequently Asked Questions
Can a torn triceps heal on its own?
A partial tear of less than about half the tendon can, with the elbow braced near straight for a few weeks and then a graded strengthening program. A complete tear cannot reattach itself; the tendon pulls away from the bone and the arm stays weak pushing and straightening. Complete tears in active patients are repaired.
How do I know if my triceps tear is complete?
Not reliably from strength alone, because a small muscle beside the triceps can still straighten the elbow weakly. A lateral X-ray showing a flake of bone above the elbow point strongly suggests a complete tear, and an MRI confirms how much of the tendon is involved and whether it has retracted.
How soon should a triceps tear be repaired?
Within 2 to 3 weeks is best, while the tendon still reaches the bone without tension. After that the muscle shortens and scar forms, and a later repair may need extra tissue to bridge the gap. Same-week appointments are kept for acute tendon injuries; call (305) 393-8810.
When can I bench press or do push-ups after triceps repair?
Light resisted extension starts at 6 to 8 weeks, and heavy pressing, push-ups and dips return around 4 to 5 months once strength matches the other arm. Loading the repair earlier is the main cause of re-rupture, so the timeline is not shortened for athletes.
Is it a triceps tear or an olecranon fracture?
The mechanism and the loss of extension are the same, so the X-ray decides. A fracture shows a break through the bony point of the elbow; a triceps tear shows either a normal olecranon or a small flake of bone pulled off its tip. Both are usually repaired in active patients, but the operations and early restrictions differ.
This page is for general education and is not a substitute for a medical evaluation. Treatment recommendations depend on your individual diagnosis and goals. Kevin O'Donnell, MD sees patients from Coral Gables, Miami, Brickell, Pinecrest and Coconut Grove at 475 Biltmore Way, and out-of-town patients by telemedicine.