Overview
The lower end of the humerus splits into two columns of bone that support a spool-shaped joint surface: the trochlea, which hinges with the ulna, and the capitellum, which rotates against the radial head. Because the elbow tolerates even small steps in its joint surface poorly and stiffens quickly when held still, these are among the more demanding fractures in the arm to treat well.
Treatment is decided by displacement, whether the joint surface is involved, bone quality and the demands of the patient. Displaced fractures in adults are usually fixed surgically, because weeks in a cast tend to produce a stiff elbow with an uneven joint. The goal of surgery is fixation rigid enough that the elbow can be moved within the first two weeks. In older patients with bone too fragmented or too soft to hold screws, replacing the joint can be a better option than rebuilding it.
Common Symptoms
- Severe pain and rapid swelling around the elbow after a fall
- Visible deformity, and bruising that spreads down the forearm over the first days
- Inability to bend or straighten the elbow, with grinding when it is moved
- Tenderness directly over the bony points on either side of the elbow
- Numbness or tingling in the ring and small fingers from bruising of the ulnar nerve
A fracture of the point of the elbow with an inability to straighten it is an olecranon fracture, which is fixed differently. A pop at the back of the elbow with weakness pushing but normal X-rays suggests a distal triceps tear. Years later, a poorly aligned fracture is the most common cause of elbow arthritis in younger adults.
Causes & Risk Factors
In younger adults it takes high energy: a motorcycle or cycling crash, a ski fall at speed, a fall from height. In patients over 60, especially women with reduced bone density, a simple fall from standing onto the elbow or outstretched hand is enough, and the bone tends to shatter into thin fragments that are hard to hold with screws. A direct landing on the flexed elbow drives the olecranon up into the humerus and splits the columns apart.
How It Is Diagnosed
The first exam covers the whole arm. Dr. O'Donnell checks the skin over the fracture (an open fracture changes the timing of surgery), the pulse at the wrist, and the three nerves that cross the elbow: ulnar (spreading the fingers), radial (lifting the wrist and thumb) and median (making an OK sign).
Plain X-rays in two views show the fracture and whether it enters the joint. For any fracture involving the joint surface a CT scan with 3D reconstructions is ordered before surgery, because the plan for plates, screws and the surgical approach is made from it. MRI is rarely needed. Out-of-town patients with emergency-department imaging can upload it through mymedicalimages.com for a same-week review.
Imaging Findings in People Without Symptoms
A fracture of the upper arm bone just above the elbow is a sudden injury seen on X-ray, so there is no painless version found by chance. The X-ray and how the elbow works are two different things. In older, low-demand patients treated without surgery, only about half of the fractures had knitted on X-ray at one year, yet nearly all had enough motion for daily life.
For a new injury, Dr. O'Donnell decides on surgery from the fracture pattern on X-ray and CT, your age, bone quality and demands, and the condition of the skin and nerves. Years later, an old fracture, a plate or arthritic change on a scan explains symptoms only if the exam points to the same spot.
A displaced fracture on an X-ray is not by itself a reason for surgery. In active adults it is usually fixed so the elbow can move early; in frail patients, a splint is reasonable.
Treatment Options
Non-operative care
Truly non-displaced fractures and stable fractures outside the joint can be treated in a splint for 2 to 3 weeks and then moved, with X-rays repeated in the first two weeks to be sure the fragments have not shifted. In frail, low-demand patients with a badly comminuted fracture and high surgical risk, brief splinting followed by motion within whatever range the elbow allows is sometimes accepted; the elbow heals with limited motion but is usually not painful.
Open reduction and internal fixation
Displaced fractures, and most fractures through the joint surface, are generally treated by elbow fracture fixation. Through an incision at the back of the elbow, sometimes by temporarily cutting and later repairing the olecranon to see the joint, the pieces of the joint surface are reassembled and held with screws, and each column is stabilized with a plate. The ulnar nerve is identified and protected throughout and moved to the front of the elbow when hardware would otherwise sit against it. Surgery is best done within the first week, once swelling allows.
Elbow replacement
In patients over about 65 with fragments too small or too soft to hold screws, total elbow arthroplasty replaces the joint surface with a hinged implant and allows immediate motion. It gives reliable pain relief and function for daily life at the cost of a permanent lifting limit of a few pounds, so it is reserved for lower-demand patients.
Recovery & What to Expect
Motion comes first and strength later. Healing takes about 6 to 12 weeks and is confirmed on X-ray before strengthening starts. The phases below follow Dr. O'Donnell's protocol for ORIF of the distal humerus.
| Phase | Timing | What happens |
|---|---|---|
| Early protected motion | Weeks 0–2 | Posterior splint between sessions; active-assisted elbow and forearm motion within surgeon-directed limits; no weight through the arm, no resisted motion |
| Active motion | Weeks 2–6 | Active elbow and forearm motion progressed toward full; scar management; no lifting or resisted strengthening |
| Strengthening | Weeks 6–12 | Begins once X-rays confirm healing; progressive resisted elbow, forearm and grip strengthening; 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 arm splinted is possible in the first one to two weeks; driving waits until the splint is off and you can steer comfortably, usually between weeks 3 and 6; lifting and pushing wait for union at 6 to 12 weeks; sport returns between 3 and 6 months. The distal humerus ORIF protocol is available as a PDF.
Frequently Asked Questions
Does a distal humerus fracture always need surgery?
Usually, in an active adult, when the fracture is displaced or enters the joint, because casting a displaced elbow fracture tends to leave both a stiff elbow and an uneven joint surface. Non-displaced fractures, and fractures in frail or low-demand patients for whom surgery carries high risk, can be splinted briefly and then moved.
My X-ray shows a displaced elbow fracture. Does that mean I need surgery?
Usually, in an active adult, because a displaced fracture into the joint left in a cast tends to heal stiff and uneven. It is not automatic. In older, low-demand patients treated without surgery, nearly all regained a useful bend even though only about half had knitted on X-ray at one year. Dr. O'Donnell weighs age, bone quality, demands and surgical risk against the fracture pattern.
How long does a distal humerus fracture take to heal?
The bone unites in about 6 to 12 weeks. Motion starts in the first two weeks after fixation, strengthening begins once X-rays confirm healing, usually from week 6, and return to full activity takes 3 to 6 months depending on the job or sport.
Will I get full motion back after an elbow fracture?
Most patients regain a functional arc, but losing the last 10 to 15° of straightening is common and rarely noticed in daily life. The strongest predictor of good motion is starting therapy within the first two weeks, which is why Dr. O'Donnell fixes these fractures rigidly enough to allow it.
Why does my hand feel numb after an elbow fracture?
The ulnar nerve runs directly behind the inner elbow and is often bruised by the injury or the swelling, causing tingling in the ring and small fingers. It is checked before and after surgery and protected or moved during the operation. Most nerve symptoms settle over weeks to months.
When can I drive after elbow 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. For most patients that is between 3 and 6 weeks after surgery; an automatic transmission and a non-dominant arm shorten it.
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.