Extremity Trauma Perioperative Considerations

Timing of Surgery¹

• Preoperative multidisciplinary coordination among the surgical, intensive care unit (ICU), and anesthesia teams is essential, particularly in acutely ill polytrauma patients. Surgical timing must balance the urgency of intervention with the patient’s physiologic stability.
• Timing of operative intervention typically follows the Advanced Trauma Life Support sequence of:
  • Initial assessment
  • Resuscitation and stabilization
  • Identification of life-threatening injuries
  • Prioritization of surgical needs
• Other important considerations include:
  • Urgency of surgical intervention
  • Patient hemodynamic stability
  • Expected blood loss and fluid requirements.
  • Duration and complexity of the procedure
  • Intraoperative positioning limitations
  • Need for tourniquet use.
• Unstable polytrauma patients with extremity injuries are often managed using orthopedic damage control protocols. These involve rapid, temporary stabilization of fractures, such as external fixation, splinting, or provisional stabilization of long-bone fractures. The goal is to minimize physiologic stress, reduce pain, reduce hemorrhage, and improve patient outcomes during ongoing resuscitation.
• Emergent operative intervention is required when there is:
  • Neurovascular compromise requiring urgent reduction or revascularization.
  • Compartment syndrome, requiring emergent fasciotomy.
  • Uncontrolled hemorrhage requiring operative or endovascular control.
• Open fractures require irrigation and debridement within 24 hours; this is urgent, though not typically emergent. Definitive orthopedic fixation is generally delayed until the patient is adequately resuscitated and physiologically stable. Staging procedures for multiple extremity injuries are particularly important in unstable patients, those with significant chest trauma, patients with traumatic brain injury (TBI), and individuals requiring prolonged resuscitation or ongoing vasopressor support. The goal is to reduce physiologic burden and prevent secondary insults associated with prolonged surgical interventions.

Perioperative Considerations and Management of Polytrauma Patient¹

• The perioperative management of polytrauma patients with extremity injuries requires a systematic, multidisciplinary approach. The goals are to prevent secondary injury, maintain physiologic stability, and ensure safe anesthetic care during both emergent and non-emergent surgery.
• For emergent surgery, the preoperative evaluation should be focused.
  • The AMPLE history (Allergies, Medications, Past medical and anesthetic history, Last meal/intake, and Events) surrounding the injury should be obtained.
  • Review of prehospital care, initial observations, the mechanism of injury, and the sequence of events leading to presentation, ongoing resuscitation and hemodynamic status, as well as suspected but unconfirmed injuries.
  • Because trauma patients often have incomplete or evolving diagnostic information, clinicians must maintain a high index of suspicion during perioperative period for:
    • Pneumothorax or hemothorax
    • Intra-abdominal bleeding
    • TBI
    • Pulmonary or cardiac contusion
• During nonemergent surgery, a more comprehensive preoperative evaluation can be performed. Key elements include:
  • Detailed injury list
  • Hospital course to date
  • Review of imaging and laboratory results
  • Past anesthetic and medical history
  • Current pain regimen
  • Airway evaluation (need for cervical spine collar, presence of facial fractures, etc.)

Choice of Anesthetic Techniques

Moderate sedation or monitored anesthesia care

• Commonly used in the emergency department for fracture or dislocation reduction.
• Ketamine is often preferred due to its hemodynamic stability, strong analgesic properties, and relative preservation of protective airway reflexes.
• Clinicians should remain mindful of the patient’s nil per os status. As part of the sympathetic stress response, traumatic ileus often develops, and additional factors, such as pain, opioid use, decreased level of consciousness, and intra-abdominal injury, can further delay gastric emptying and increase the risk of aspiration.

General anesthesia is preferred for hemodynamically unstable patients because it:

• Secures the airway.
• Allows controlled ventilation.
• Facilitates intravenous and invasive monitoring line placement.
• Enables continuous monitoring during ongoing resuscitation in the operating room.

Regional techniques (peripheral nerve blocks or neuraxial anesthesia) may be used:

• As an adjunct to general anesthesia for postoperative analgesia
• As a primary anesthetic in stable patients when surgical conditions permit
• Neuraxial anesthesia should be avoided in hypovolemic, under-resuscitated, or coagulopathic patients due to the risk of profound sympathectomy, cardiovascular collapse, and neuraxial hemorrhage.
• Compartment syndrome remains one of the most significant surgical concerns when using regional anesthesia in patients with high-risk orthopedic fractures.

Other Intraoperative Considerations

• Avoid intravenous (IV) or intraosseous (IO) placement near or distal to fractures, open wounds, or swollen extremities with concern for compartment syndrome.
• Use ultrasound guidance when peripheral access is difficult.
• Early placement of large-bore central venous access is often required.
• Consider IO access in urgent situations where IV or central access is not immediately possible.
• Send samples urgently for blood type, screen, and crossmatch product as required.
• Preoperative laboratory tests should be reviewed for anemia, thrombocytopenia, coagulopathy (international normalized ratio, partial thromboplastin time, fibrinogen), electrolyte abnormalities, and renal or hepatic dysfunction. These results help guide intraoperative fluid, transfusion, and pharmacologic management.
• Early correction of coagulopathy in the setting of pre-injury anticoagulation use is essential.
• Arterial line placement is recommended for continuous blood pressure monitoring and frequent lab sampling.
• Lung-protective ventilation strategies should be used in trauma patients, particularly those with chest injuries, pulmonary contusions, or risk factors for acute respiratory distress syndrome (ARDS), to support a better overall outcome in critically injured patients.
• No single parameter or target reliably indicates adequate resuscitation. Instead, a combination of physiological parameters (heart rate, blood pressure, mental status or urine output) and metabolic markers (such as lactate and base deficit) and, importantly, their trends should guide resuscitation efforts. In the operating room, the anesthesiology team is best positioned to integrate these data and adjust resuscitation management accordingly.
• Maintaining normothermia, monitoring blood loss closely, and continuing balanced blood product resuscitation are critical to prevent the lethal trauma triad of acidosis, coagulopathy, and hypothermia.
• Excessive crystalloid administration should be avoided; when massive transfusion protocols are activated, a balanced blood product resuscitation strategy is preferred to reduce:
  • Dilutional and consumptive coagulopathy: Utilize viscoelastic testing or conventional labs to guide targeted correction of coagulopathy.
  • Hypothermia
  • Tissue edema and compartment syndrome
  • Risk of ARDS or transfusion-related acute lung injury
• Use of a tourniquet may be required (see sections on Physiological Effects of Tourniquet Application and Ischemia-Reperfusion Injury) for detailed considerations.
• Ongoing management of concurrent injuries is essential. For example, chest tubes placed for pneumothorax or hemothorax should remain connected to suction throughout the procedure.
• The prioritization of surgical procedures in polytrauma patients is critical and must take into account the patient’s overall stability and associated injuries. For example, it is unsafe to place a patient who requires full spine precautions in the lateral position for hip hemiarthroplasty. In such cases, spinal clearance or spinal fracture fixation may be required prior to hip hemiarthroplasty to ensure safe positioning.
• Additional attention must also be given to intraoperative positioning in trauma patients. For instance, a reverse Trendelenburg position may be required during surgery in patients with elevated intracranial pressure due to TBI to optimize cerebral physiology.
• Hemodynamically unstable patients may require staged surgical management. Priority should always be given to procedures that address life or limb-threatening injuries.

Postoperative Considerations

• ICU admission may be required for continuous monitoring and resuscitation in patients with polytrauma. Indications include:
  • Hemodynamic instability
  • Need for vasopressor support
  • Requirement for mechanical ventilation
  • Ongoing resuscitation needs.
  • Risk of deterioration due to associated injuries (e.g., TBI, pulmonary contusion, cardiac contusion, or solid-organ injury protocols)
• Frequent neurovascular assessments, including evaluation of pulses, sensation, motor function, and perfusion, are essential. Any deterioration may indicate vascular occlusion, compartment syndrome, or failure of revascularization and requires urgent intervention.
• Compartment syndrome requires vigilant postoperative monitoring. Warning signs include escalating pain, especially pain disproportionate to the injury, tense or firm compartments, and new neurologic changes such as paresthesia or weakness. When the clinical picture is unclear or findings are equivocal, measuring compartment pressures can aid in confirming the diagnosis and determining the need for emergent fasciotomy.
• Appropriate prophylactic antibiotics, typically continued for 24 hours, and regular wound assessment is important to prevent wound infection. Large or complex wounds may benefit from temporary negative-pressure wound therapy and delayed closure to optimize healing and reduce the risk of infection.
• Early mobilization and engagement with physical and occupational therapy are essential to preserve joint mobility, restore function, and minimize complications such as stiffness, deconditioning, and venous thromboembolism.
• A multimodal analgesic strategy is recommended, incorporating systemic medications and regional anesthesia when appropriate. Neuropathic pain, complex regional pain syndrome, or phantom limb pain are common, particularly in patients with nerve injuries or traumatic amputations.
• Strong evidence from animal studies shows that nonselective nonsteroidal anti-inflammatory drugs (NSAIDs) can inhibit bone and wound healing, whereas cyclooxygenase-1 or 2 selective NSAIDs tend to have little to no effect on healing. However, postoperative NSAID use remains highly surgeon-dependent.
• Traumatic extremity injuries can have a significant psychological impact. Early screening for anxiety, depression, posttraumatic stress disorder, and adjustment difficulties allows timely referral to counseling, psychiatry, or supportive services. Addressing mental health needs is vital for recovery, rehabilitation engagement, and long-term outcomes.

Other common complications related to extremity trauma.

• Peripheral Compartment Syndrome (Link)
• Fat Embolism (Link)
• Bone Cement Implantation Syndrome (Link)
• Crush Syndrome/Rhabdomyolysis (Link)