Overview
The humerus shaft is the long bone between the shoulder and elbow. Many shaft fractures heal well in a functional brace without surgery, relying on gravity and progressive motion to align the bone. Surgery is reserved for fractures that won't align in a brace, for patients who cannot tolerate the bracing protocol, and for specific patterns or associated injuries.
The most common surgical indications are open fractures, pathologic fractures, vascular injury, segmental patterns, floating elbow or shoulder, and bilateral humerus fractures. Patients presenting with multi-system injury are managed at a regional trauma center.
Why it's done
Humeral shaft ORIF is typically considered when imaging and the clinical picture together indicate that the fracture will not reliably heal or function without surgical stabilization. Common indications include:
Open fracture or vascular injury
Urgent stabilization and soft-tissue care are required.
Fracture that cannot be aligned in a brace
Unacceptable angulation or persistent distraction.
Associated injuries limiting bracing
Floating elbow, polytrauma, or an injured contralateral arm.
Radial nerve palsy with entrapment
Exploration and fixation are sometimes indicated.
Pathologic fracture
Fixation provides pain control and limb function.
How it works
Plate fixation is performed through an anterolateral or posterior approach, depending on fracture location. The radial nerve is carefully identified and protected. A broad compression plate is applied with multiple screws on each side of the fracture.
Intramedullary nailing is an alternative, particularly for more proximal patterns, and is placed antegrade through the shoulder under fluoroscopic guidance.
Recovery
The arm is supported in a sling with early elbow and shoulder range-of-motion exercises. Active motion progresses as pain and stability allow. Bony union is confirmed on X-ray at follow-up visits. Radial nerve symptoms can persist for an extended period after surgery and are usually monitored rather than re-explored unless specific findings warrant. Hardware is left unless it causes problems.
Contact
For questions about this procedure or to schedule an evaluation, call the office at (830) 625-0009 or request an appointment online.
Weight-Bearing After Repair
Controlled load is part of how bone heals. Once the fracture is stabilized with hardware, gentle weight through the limb stimulates the biology that builds callus and remodels bone — completely offloading a fixed fracture for too long can actually slow healing and stiffen the joint above and below. Full body weight right away, however, can overload the construct before bone has caught up. The right answer sits in between: a partial weight-bearing progression decided by your surgeon based on your fracture pattern, the strength of the fixation, your bone quality, and how the repair looks on post-op imaging. We tell you exactly how much weight the limb can take, when to advance, and what to watch for.
Risks & Why We Still Recommend It
Every operation carries risk. The reason we offer this procedure is that the condition, left untreated, causes a non-union or mal-union of the arm bone, often with radial nerve compromise. That is the trade we are managing — not eliminating risk, but choosing the smaller of two unfavorable trajectories.
The risks we discuss with patients before humeral shaft orif include:
- bleeding and infection
- anesthesia risk
- radial nerve palsy (the nerve is intimate with the humeral shaft — most palsies recover, but not all)
- non-union
- hardware irritation
- stiffness of the shoulder and elbow
- blood clot (rare in upper-extremity surgery)
The indication to proceed is a displaced humeral shaft fracture that cannot be managed in a functional brace, or one with a radial nerve deficit requiring exploration. Patients who don't need this operation don't get it.
Further Reading
External patient-education references and related OSI pages for additional background: