Clinical overview · Updated educational guide
A distal radius fracture is a break near the wrist end of the radius. Treatment may range from a splint or cast to percutaneous pins, external fixation, or plate fixation. The appropriate plan depends on fracture alignment and stability, joint involvement, soft-tissue condition, bone quality, age, functional needs, and patient preferences.
What Is a Distal Radius Fracture?
The distal radius forms the main load-bearing surface on the thumb side of the wrist. A fracture usually occurs within a few centimeters of the radiocarpal joint and may be extra-articular, extend into the joint, or involve the distal radioulnar joint. The ulnar styloid and supporting ligaments may also be injured.
A fall onto an outstretched hand is a common mechanism. Lower-energy falls are typical in older adults with reduced bone strength, while sports injuries, road traffic incidents, and falls from height may produce higher-energy patterns in younger patients.
Why anatomy matters
The distal radius has a broad articular surface and supports the scaphoid and lunate. Nearby structures include the median nerve, flexor and extensor tendons, the radial artery, the distal radioulnar joint, and the triangular fibrocartilage complex. Restoring useful alignment while protecting these structures is a central goal of treatment.
Symptoms and Signs That Need Prompt Assessment
Typical symptoms include immediate wrist pain, swelling, bruising, tenderness, reduced motion, and difficulty gripping. A displaced fracture may produce visible deformity. A clinician also checks skin condition, finger circulation, sensation, tendon function, and associated injuries.
Seek urgent medical care for an open wound, bone visible through the skin, a pale or cold hand, worsening numbness, inability to move the fingers, rapidly increasing swelling, or severe pain that is not controlled. These findings can indicate an open fracture, neurovascular compromise, or dangerous pressure within the tissues.
Diagnosis and Radiographic Assessment
Standard posteroanterior and lateral wrist radiographs are used to identify the fracture and assess displacement. Oblique views may help in selected cases. Computed tomography can provide more detail when an intra-articular fracture is complex or when operative planning requires clearer definition of the fragments.
| Radiographic feature | What it describes | Why it matters |
|---|---|---|
| Radial height | The length of the distal radius relative to reference points on the joint surface. | Loss of height can alter load transmission and ulnar variance. |
| Radial inclination | The slope of the distal radial articular surface on the PA view. | Reduced inclination may reflect collapse or lateral displacement. |
| Volar/dorsal tilt | The sagittal orientation of the articular surface on the lateral view. | Excessive dorsal or volar tilt can affect wrist mechanics. |
| Articular step-off or gap | Loss of smooth alignment at the joint surface. | Helps define intra-articular displacement and treatment goals. |
| Ulnar variance | The relative length of the distal ulna and radius. | May change when the radius shortens and influence ulnocarpal loading. |
How Distal Radius Fractures Are Classified
Descriptive terms such as Colles, Smith, and Barton fractures communicate characteristic displacement patterns, but they do not capture every injury. Modern assessment also records whether the fracture is open or closed, extra-articular or intra-articular, displaced or nondisplaced, stable or unstable, and simple or comminuted.
Fernandez classification by mechanism
The Fernandez system groups fractures according to the dominant injury mechanism. It can help clinicians think about associated soft-tissue injury and fixation strategy, but treatment is not selected from classification alone.
How Treatment Is Chosen
The aim is not simply to make an X-ray look normal. Treatment seeks a comfortable, stable, functional wrist while balancing the risks of anesthesia, surgery, immobilization, stiffness, and loss of reduction. A shared decision should consider:
- fracture displacement, comminution, joint involvement, and stability after reduction;
- open injury, nerve symptoms, circulation, and soft-tissue condition;
- patient age as a proxy—not a substitute—for physiologic status and functional demand;
- bone quality, other injuries, medical conditions, occupation, and hand dominance;
- ability to attend follow-up and participate in rehabilitation;
- the patient's goals and tolerance for the benefits and risks of each option.
Guideline context: AAOS/ASSH guidance supports operative fixation in many non-geriatric patients when, after reduction, radial shortening exceeds 3 mm, dorsal tilt exceeds 10°, or intra-articular displacement/step-off exceeds 2 mm. For geriatric patients—commonly represented in studies by age 65 or older—surgery generally does not improve long-term patient-reported outcomes compared with nonsurgical care. These thresholds inform, but do not replace, individualized clinical judgment.
Nonsurgical Treatment
A nondisplaced or acceptably aligned stable fracture may be managed with a splint or cast. A displaced fracture may first undergo closed reduction, followed by immobilization. Follow-up examination and radiographs are scheduled according to fracture behavior and the clinician's judgment because some fractures can lose alignment as swelling decreases.
- Initial protection: a splint allows room for early swelling; elevation and finger motion may be advised.
- Reduction when required: the fracture is realigned using appropriate analgesia or anesthesia.
- Immobilization and review: cast fit, circulation, sensation, and alignment are reassessed.
- Rehabilitation: wrist and forearm motion are introduced when healing and stability allow.
When May Surgery Be Considered?
Surgery may be discussed when acceptable alignment cannot be achieved or maintained, the joint surface is significantly displaced, the fracture is open, the carpus is unstable, or the injury pattern is unlikely to remain stable in a cast. The operation and implant are selected for the specific fragment pattern and patient—not simply for the diagnostic label.
Surgical Options for Distal Radius Fractures
| Method | Common role | Important limitations or risks |
|---|---|---|
| Percutaneous K-wire fixation | Selected reducible fractures that can be stabilized with pins and supplementary immobilization. | Pin-tract infection, wire migration, loss of reduction, and need for pin care. |
| External fixation | Selected unstable, open, highly comminuted, or soft-tissue-compromised injuries; may be temporary or definitive. | Pin-tract problems, stiffness, nerve/tendon irritation, and loss of alignment. |
| Volar locking plate | Many unstable extra-articular and intra-articular patterns requiring direct reduction and fixed-angle support. | Flexor tendon irritation or rupture, nerve symptoms, screw penetration, infection, and hardware symptoms. |
| Dorsal plate | Selected dorsal rim or dorsal shear fragments not adequately controlled from the volar side. | Extensor tendon irritation and hardware prominence. |
| Dorsal bridge plate | Highly comminuted fractures where the plate spans the wrist and uses ligamentotaxis. | Temporarily limits wrist motion and usually requires later plate removal. |
| Fragment-specific fixation | Complex patterns in which individual articular columns or rim fragments need targeted support. | More implants and approaches may increase soft-tissue complexity. |
AAOS/ASSH evidence indicates no major long-term outcome difference among fixation techniques for unstable or complete articular fractures, although volar locking plates may provide earlier functional recovery in the first three months. Final technique selection depends on the fracture and surgeon expertise.
Percutaneous pin fixation
After closed or limited-open reduction, smooth Kirschner wires can hold selected fragments. Fluoroscopy confirms reduction and wire position. Pins may be left outside the skin or buried, depending on the technique, and the wrist is commonly protected in a splint or cast.
External fixation
An external fixator uses pins placed outside the fracture zone and connected to an external frame. A wrist-spanning construct can maintain length and alignment through ligamentotaxis. It may also be combined with wires, small plates, or bone graft in complex injuries. See an example of a wrist external fixator and an overview of orthopedic external fixation systems.
Dorsal plate fixation
A dorsal approach gives access to selected dorsal articular fragments and shear patterns. Modern low-profile implants reduce bulk, but the extensor tendons remain close to the hardware and must be protected. The following images illustrate dorsal fixation concepts rather than a universal surgical sequence.
Volar locking plate fixation
Volar plating is widely used because it can support the subchondral bone from the palmar side while avoiding direct placement beneath the extensor tendons. The flexor carpi radialis interval is a common approach. Plate position, restoration of the joint surface, distal screw length, and flexor tendon clearance require careful verification.
XC Medico examples include a 7-hole distal radius locking plate, a 6-hole distal radius locking plate, and a DVR distal radius locking plate. These product links are for device information; implant selection remains the responsibility of trained clinicians.
Dorsal bridge (distraction) plating
A bridge plate spans from the radius to a metacarpal and functions as an internal distractor. It may be useful for selected highly comminuted injuries that cannot be supported reliably by a conventional distal plate. Because it temporarily crosses the wrist, a planned second procedure is generally needed to remove the plate after healing.
Fragment-specific fixation
Complex articular fractures may contain radial styloid, volar rim, dorsal rim, and impacted central fragments. Fragment-specific systems use smaller implants positioned to buttress the components that require direct control. They may be used alone or with another fixation method.
Recovery, Rehabilitation, and Possible Complications
Finger motion is often encouraged early if the injury and treatment permit. Wrist and forearm exercises begin according to stability, wound condition, and radiographic healing. Strength, dexterity, and endurance recover more slowly than basic motion, and some swelling or stiffness may persist for months. Rehabilitation may be home-based or supervised depending on patient needs and local practice.
Possible complications include loss of reduction, malunion, nonunion, stiffness, post-traumatic arthritis, median nerve symptoms, complex regional pain syndrome, tendon irritation or rupture, infection, pin-tract problems, and symptomatic hardware. New numbness, increasing pain, fever, drainage, or a marked loss of finger motion warrants clinical review.
Bone health matters: a low-energy wrist fracture in an older adult may be a warning sign of osteoporosis. Patients can ask their clinician whether fracture-risk assessment, bone-density testing, fall prevention, vitamin D evaluation, or other bone-health measures are appropriate.
Frequently Asked Questions
Does every displaced distal radius fracture need surgery?
No. Some fractures can be reduced and remain acceptably aligned in a cast. Stability, joint displacement, age, functional demand, health, and patient preferences all influence the decision.
How long does a distal radius fracture take to heal?
Early bone healing commonly develops over about six weeks, but the timeline varies. Motion, strength, swelling, and confidence may continue improving for several months or longer.
Is a volar plate always the best surgical option?
No single implant is best for every fracture. Volar locking plates are common and may support earlier short-term function, but pins, external fixation, dorsal fixation, bridge plating, or fragment-specific implants may better match certain patterns.
Must a distal radius plate be removed later?
Routine removal is not always necessary. Removal may be considered for tendon irritation, prominent or symptomatic hardware, infection, or other clinical reasons. A bridge plate generally requires planned removal because it spans the wrist.
When can the hand be used normally again?
Safe use depends on fracture stability, treatment, radiographic healing, pain, and the activity involved. Light daily tasks usually return before forceful gripping, lifting, contact sports, or heavy work. Follow the treating clinician's restrictions.
Related XC Medico Resources
The following internal resources provide specifications for implants, instruments, and related trauma systems mentioned in this guide.
References and Editorial Basis
- American Academy of Orthopaedic Surgeons. Management of Distal Radius Fractures Clinical Practice Guideline.
- AAOS OrthoInfo. Distal Radius Fractures (Broken Wrist).
