How should a closed mid‑shaft fracture of the radius and ulna in an adult without neurovascular injury be managed?

Management of Closed Mid-Shaft Radius and Ulna Fractures in Adults

Adult closed mid-shaft fractures of both the radius and ulna require open reduction and internal fixation (ORIF) as the definitive treatment to restore anatomic alignment and preserve forearm function. 1, 2

Primary Treatment Recommendation

Operative fixation with ORIF is the standard of care for adult both-bone forearm fractures, as these injuries cannot be adequately managed with closed reduction and casting due to the critical importance of maintaining anatomic relationships of the proximal and distal radioulnar joints and the interosseous space. 1

Evidence Supporting Operative Management

• Patients treated with ORIF demonstrate significantly less pain, better preservation of forearm rotation, and higher rates of return to the same work compared to closed reduction and casting or pins-in-plaster techniques. 2
• The greatest advantages of ORIF are improved skeletal alignment and forearm rotation—the two factors most strongly associated with successful return to work following injury. 2
• Preservation of anatomic relationships is critical to preserving function, as the upper extremity serves to position the hand in space, and any loss of forearm motion or muscle imbalance from poorly treated fractures is particularly debilitating. 1

Timing of Definitive Surgery

In hemodynamically stable patients without severe associated injuries, perform early definitive osteosynthesis within the first 24 hours to reduce local and systemic complications. 3

Risk Stratification for Surgical Timing

• Stable patients (no severe visceral injury, no circulatory shock, no respiratory failure): Proceed with early definitive ORIF within 24 hours. 3
• Unstable patients (presence of severe visceral injuries, circulatory shock, or respiratory failure): Implement damage control orthopaedics with temporary stabilization (external fixator or skeletal traction), followed by delayed definitive osteosynthesis once clinical status stabilizes. 3

The "second hit" phenomenon from early definitive surgery in unstable polytrauma patients can trigger massive operative blood loss, lactic acidosis, hypothermia, and systemic inflammatory mediator release, leading to multiple organ failure. 3

Immediate Post-Injury Management

Initiate active finger motion exercises immediately following diagnosis to prevent finger stiffness, which represents one of the most functionally disabling complications of forearm fractures. 4, 5

• Finger motion does not adversely affect adequately stabilized fractures. 6
• Early finger mobilization is critical even before definitive surgical fixation. 4

Post-Operative Protocol

Immobilization Duration

• Limit post-operative immobilization to 1-3 weeks maximum following internal fixation. 4, 5
• Prolonged immobilization beyond this period does not improve outcomes and increases complications including skin irritation and muscle atrophy (occurring in approximately 14.7% of cases). 5, 6

Radiographic Follow-Up

• Obtain radiographs at approximately 3 weeks post-operatively to assess healing. 5, 6
• Additional imaging at time of immobilization removal to confirm adequate healing. 5
• Obtain additional radiographs only if clinically indicated: new trauma, pain score >6/10, loss of range of motion, or neurovascular symptoms. 3, 5

Expected Outcomes

Closed vs Open Fractures

• Closed fractures demonstrate earlier recovery of function at 6 weeks compared to open fractures. 7
• By 3 months post-operatively, no significant difference in functional outcomes exists between closed and open fractures treated with internal fixation. 7
• Open fractures have longer time to union and higher infection rates, but otherwise similar outcomes to closed fractures. 2, 7

Functional Recovery

• Good-to-excellent functional and clinical results are achievable with internal fixation in both open and closed mid-shaft radius and ulna fractures. 7
• The presence of other associated injuries is a strong predictor of compromised outcomes, primarily due to more pain, greater loss of forearm rotation, and less frequent return to the same work. 2

Pain Management

Consider multimodal and opioid-sparing pain management protocols when possible, given the rising concerns about opioid use disorders and prescription opioid-related mortality. 3

Critical Pitfalls to Avoid

• Do not attempt closed reduction and casting alone for adult both-bone forearm fractures, as this leads to inferior outcomes including malunion, loss of forearm rotation, and inability to return to work. 2
• Do not delay finger motion exercises, as finger stiffness is highly disabling and preventable with immediate mobilization. 4, 5
• Do not perform early definitive surgery in unstable polytrauma patients without first achieving hemodynamic stability, as the surgical "second hit" can precipitate multiple organ failure. 3
• Do not prolong immobilization beyond 3 weeks post-operatively, as this increases complications without improving outcomes. 4, 5