Do Nondisplaced Fractures Need Surgery?

A broken bone, or fracture, is a common injury that often causes immediate concern about the need for surgery. The good news is that the vast majority of these injuries do not require an operation, relying instead on a conservative management approach. A nondisplaced fracture is inherently stable, meaning the body can typically heal the injury naturally if the bone is simply held in the correct position. The decision to avoid surgery for these cases favors non-invasive methods to allow the bone to mend itself.

What Defines a Nondisplaced Fracture

A nondisplaced fracture is a break in the bone where the two fragments remain in their proper anatomical alignment. The bone is cracked or broken, but the pieces have not shifted significantly from their original position. This type of injury is sometimes referred to as a stable fracture because the bone ends are held securely enough to prevent major movement.

The key distinction lies in the alignment of the bone fragments. In a displaced fracture, the broken ends are severely separated or misaligned, which often requires surgical intervention to reposition them. Conversely, a nondisplaced fracture maintains the structural integrity and close contact needed for the natural healing process.

Standard Non-Surgical Management

The standard treatment pathway for a stable, nondisplaced fracture centers on immobilization. This conservative approach uses external support to hold the bone fragments steady while the body’s natural repair mechanisms take over. Immobilization is typically achieved using a cast, splint, or brace, which prevents movement at the fracture site.

The duration of immobilization varies based on the bone affected and the patient’s age, but it commonly lasts between three to eight weeks. The primary goal of this management is to create a quiet, protected environment where the bone can form a healing callus and ultimately bridge the gap.

Pain management during this period involves nonsteroidal anti-inflammatory drugs or other analgesics, and elevation of the injured limb helps reduce swelling and discomfort. Following the removal of the cast or brace, physical therapy is often initiated to regain strength and a full range of motion lost during the immobilization period.

Factors Requiring Surgical Intervention

While most nondisplaced fractures heal well conservatively, certain factors necessitate a surgical procedure.

Inherently Unstable Patterns

One significant exception is a fracture pattern deemed inherently unstable. This means it has a high risk of shifting or displacing even if it appears aligned initially. These potentially unstable fractures may require internal fixation to ensure they heal in the correct position.

Intra-Articular Fractures

Surgical intervention also becomes necessary if the fracture extends into a joint surface, known as an intra-articular fracture. Even a minor misalignment within a joint can lead to long-term issues like post-traumatic arthritis. Surgeons may perform an open reduction and internal fixation (ORIF) to restore a perfectly smooth joint surface.

Open Fractures and Specific Bones

Fractures that break the skin, called open or compound fractures, require immediate surgery to clean the wound, prevent deep infection, and stabilize the bone. Specific bones, such as the scaphoid bone in the wrist or the calcaneus (heel bone), are sometimes treated surgically even when nondisplaced. This is often due to their poor blood supply or the high forces they bear, overriding the standard non-surgical default.

Monitoring for Complications and Delayed Displacement

The treatment of a nondisplaced fracture does not end with the application of a cast or splint; close surveillance is an important part of the recovery process. The greatest concern during the initial phase of non-surgical treatment is delayed displacement, where the fracture shifts out of alignment days or weeks after the initial injury. This shifting can occur due to swelling subsiding, allowing the bone fragments to move within the cast, or from forces placed on the limb.

To monitor for this complication, follow-up X-rays are typically scheduled within the first one to two weeks after the injury. If the X-rays show that the bone fragments have moved significantly, the treatment plan must be re-evaluated, and subsequent surgery may be required to correct the misalignment.
Patients are also advised to watch for signs of problems, such as a sudden increase in pain, new numbness or tingling, or a noticeable change in the shape of the limb, which all warrant immediate medical attention.