Overview
The olecranon is the hook of bone at the top of the ulna that forms the point of the elbow and cups the end of the humerus. The triceps tendon attaches to its tip, so every time you straighten your arm the triceps pulls directly on it. It sits just under the skin, so a fall onto the elbow breaks it, and a broken olecranon usually pulls apart: the triceps drags the upper fragment away, leaving a gap that cannot heal in a cast and an elbow that cannot straighten under its own power.
Treatment is decided by displacement, by whether the elbow is otherwise stable, and by the quality of the bone. A fracture with the fragments still touching and an intact ability to straighten the elbow against gravity can be splinted briefly and moved. A gap of more than about 2 millimeters, or any loss of extension, means the extensor mechanism is disrupted and the fragments need to be fixed.
Common Symptoms
- Pain and swelling over the point of the elbow within minutes of a fall onto it
- A gap or step you can feel at the elbow tip when the swelling is pressed
- Inability to straighten the elbow against gravity or to push up from a chair
- Bruising and grazed skin over the point of the elbow; a wound over the fracture is an emergency
- Tingling in the ring and small fingers from bruising of the ulnar nerve, which runs beside the fracture
A distal triceps tear presents with the same fall and the same loss of extension, and only the X-ray separates the two. A fracture higher up, with deformity and grinding on either side of the joint, is a distal humerus fracture.
Causes & Risk Factors
The usual mechanism is a direct fall onto the flexed elbow: coming off a bicycle, a ski fall onto hard snow, a slip on a wet deck. A fall onto the outstretched hand with the triceps firing can also snap the tip off from the inside. In patients over 60, particularly women with reduced bone density, a fall from standing height is enough, and the bone tends to break into thin fragments that hold wires poorly.
How It Is Diagnosed
Dr. O'Donnell checks the skin over the fracture first, since an open fracture goes to surgery urgently, then tests whether the elbow can be straightened against gravity, which tells him whether the extensor mechanism is intact. Ulnar nerve function and the pulse are documented.
A true lateral X-ray shows the fracture line, the gap and the angle of the fragments, and is usually all that is needed to make the decision. CT is ordered when the fracture is in several pieces, when the joint surface is depressed, or when the coronoid or radial head is also involved, because these combined injuries change the fixation plan. Out-of-town patients seen first in an emergency department can upload their X-rays through mymedicalimages.com for a same-week review.
Treatment Options
Non-operative care
Non-displaced fractures with the fragments within 2 millimeters of each other and full active extension are splinted at about 90° for a short period and then moved, with X-rays repeated at one and two weeks to be sure the fragment has not pulled apart. Lifting waits for healing at 6 to 12 weeks. In frail, low-demand patients with high surgical risk, a splint followed by early motion is sometimes accepted even for a displaced fracture; extension is weaker but pain is usually mild.
Tension band or plate fixation
Displaced fractures are treated by elbow fracture fixation. A simple transverse fracture in good bone can be held with a tension band: two pins along the bone and a figure-of-eight wire that turns the pull of the triceps into compression across the fracture. It is reliable, but the wire sits directly under the skin and is often removed once the bone has healed. Fractures that are oblique, in several pieces, near the coronoid, or in thin bone are fixed with a low-profile contoured plate and screws, which hold better and are less prominent. All of these are outpatient operations at Bayside Surgery Center, ideally within the first week.
Recovery & What to Expect
The purpose of fixation is to allow early motion. Straightening the elbow against resistance is the one thing avoided in the first 6 weeks, because the triceps pulls directly on the fixation. Healing is confirmed on X-ray before strengthening starts. The phases below follow Dr. O'Donnell's protocol for ORIF of the olecranon.
| Phase | Timing | What happens |
|---|---|---|
| Early protected motion | Weeks 0–2 | Splint initially; active-assisted elbow and forearm motion within allowed limits; no resisted extension; no weight through the arm |
| Active motion | Weeks 2–6 | Active elbow and forearm motion progressed to full; end-range passive flexion limited early; scar management; no lifting, no resisted extension |
| Strengthening | Weeks 6–12 | Begins once X-rays confirm healing; progressive resisted elbow strengthening including extension, grip work; gentle end-range stretching for stiffness |
| Return to activity | Months 3–6 | Progressive strengthening and sport- or job-specific tasks; full loading on surgeon clearance after union |
Desk work with the splint is possible in the first one to two weeks; driving waits until the splint is off and active motion is comfortable, usually between weeks 3 and 6; lifting and pushing wait for union at 6 to 12 weeks; cycling, skiing and contact sport return between 3 and 6 months. The olecranon ORIF protocol is available as a PDF.
Frequently Asked Questions
Can an olecranon fracture heal without surgery?
Yes, if the fragments are within about 2 millimeters of each other and you can still straighten the elbow against gravity. Those fractures are splinted briefly, X-rayed again at one and two weeks, and then moved. Displaced fractures do not heal in a cast because the gap reopens every time the triceps contracts.
How long does an olecranon fracture take to heal?
The bone unites in about 6 to 12 weeks. Motion starts in the first two weeks after fixation, straightening against resistance is avoided for 6 weeks, strengthening starts once X-rays show healing, and return to full activity takes 3 to 6 months.
Will the hardware in my elbow need to be removed?
Often, after a tension band, because the wires sit directly under the skin at the point of the elbow and rub on desks and armrests; removal is a short outpatient procedure once the bone has healed, usually after 6 to 12 months. Plates are lower profile and removed less often.
When can I drive after olecranon fracture surgery?
Once the splint is off, you can bend and straighten the elbow enough to steer comfortably, and you are no longer taking prescription pain medication, which for most patients is between 3 and 6 weeks after surgery; an automatic transmission and a non-dominant arm shorten it.
Will my elbow be stiff after an olecranon fracture?
Some loss of the last 10 to 15° of straightening is common and rarely limits daily life. Serious stiffness is prevented by starting motion within the first two weeks, which is the main reason displaced fractures are fixed rather than casted. Persistent stiffness can later be treated with splinting or, rarely, an arthroscopic release.
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.