What are the standard steps for managing an acute injury?

Management of Acute Injury

For acute injury management, immediately control hemorrhage using direct compression or tourniquets when compression fails, followed by systematic assessment of injury severity, early stabilization, and multimodal pain control while preventing complications through appropriate prophylaxis. 1, 2

Immediate Hemorrhage Control

Active bleeding must be stopped first to prevent exsanguination and the lethal triad of hypothermia, acidosis, and coagulopathy. 1

• Apply direct compression as the first-line method for controlling limb hemorrhage 3
• If direct compression is ineffective, or in cases of amputation, foreign body in wound, absent radial pulse, or need for multiple simultaneous interventions, apply a tourniquet immediately 3, 1
• Tourniquets should be placed as proximally as possible on the affected limb and reassessed as soon as feasible to minimize ischemic time (ideally <2 hours, though military data shows limb survival up to 6 hours) 3, 1
• For open wounds, apply sterile wet dressings after initial hemorrhage control 3

Initial Assessment and Triage

Use mechanism of injury combined with physiological parameters to identify patients requiring trauma center care. 1

Key severity indicators requiring specialized trauma center admission include: 4

• Two or more long bone fractures
• Proximal amputation (above wrist/ankle)
• Degloving, crushing, or acute limb ischemia
• Hemodynamic instability (Class III-IV shock: HR >120, BP decreased, altered mental status) 1
• Loss of >30% blood volume 1

For elderly patients (≥65 years), assess frailty status, medication history (especially anticoagulants), and nutritional status during initial triage, as these significantly impact mortality. 4

Fracture Stabilization

Immobilize fractures immediately to reduce ongoing blood loss and prevent fat embolism. 3

• For pelvic fractures with hemodynamic instability, apply external pelvic fixation (Ganz clamp or anterior external fixator) early to limit hematoma expansion 5
• For long bone fractures, perform definitive osteosynthesis (intramedullary nailing) in first intention when hemodynamically stable to prevent ARDS and fat embolism syndrome 3
• In hemodynamically unstable patients, consider damage control with external fixation followed by delayed definitive fixation 3

Infection Prevention

Administer antibiotic prophylaxis within the first hour for open fractures and continue for maximum 48-72 hours. 3

Specific measures for open fractures: 3

• First-generation cephalosporins or amoxicillin-clavulanate (clindamycin + gentamicin if beta-lactam allergy)
• Thorough wound irrigation and debridement
• Tetanus prophylaxis per immunization status
• Do NOT give antibiotics for closed blunt trauma without signs of sepsis 4

Venous Thromboembolism Prophylaxis

Initiate pharmacological thromboprophylaxis with low molecular weight heparin (LMWH) or unfractionated heparin (UFH) as soon as hemorrhage is controlled, adjusted for renal function and bleeding risk. 4, 3

• High and moderate-risk trauma patients require early prophylaxis 4
• Consider vena cava filter placement in patients with major VTE risk and contraindications to anticoagulation 3

Pain Management

Implement multimodal analgesia immediately, avoiding reliance on opioids alone. 3, 6

Evidence-based pain control strategy: 3, 6

• Intravenous morphine titration (boluses of 2-3mg every 5 minutes until pain relief, monitoring for respiratory depression)
• Add non-opioid adjuncts: acetaminophen, NSAIDs (only first 3 days to avoid bleeding complications) 7, 8
• Consider regional anesthesia/nerve blocks when appropriate 6
• Apply ice for 10-20 minutes, 2-4 times daily for first 2-3 days 7
• Elevate injured extremity to reduce swelling 7, 6

Coagulation Management

One-third of major trauma patients arrive coagulopathic; early recognition and correction reduces mortality. 1, 2

• Maintain normothermia (avoid hypothermia <35°C) 1, 2
• Avoid hyperventilation unless signs of cerebral herniation (target normal PaCO2) 1
• Monitor coagulation parameters and correct deficits with appropriate blood products 1, 2
• Consider tranexamic acid administration within 3 hours of injury for major bleeding 2

Critical Pitfalls to Avoid

• Never delay tourniquet application in life-threatening limb hemorrhage - "pressure point control" is ineffective due to rapid collateral circulation 1
• Do not hyperventilate trauma patients routinely - this worsens outcomes through vasoconstriction and decreased venous return 1
• Avoid prolonged tourniquet time - reassess necessity and location as soon as possible 3, 1
• Do not prescribe extended-duration antibiotics for open fractures - limit to 48-72 hours maximum unless proven infection 3
• Never administer high-dose corticosteroids for fat embolism prevention - associated with increased mortality in head injury and infection in spinal cord injury 3