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Chapter Summary
• Context: The evaluation and management of the vertebral column in a polytrauma patient must be integrated seamlessly into Advanced Trauma Life Support (ATLS) resuscitation priorities (ABCDE: Airway with cervical spine protection, Breathing, Circulation with hemorrhage control, Disability, Exposure). In high-energy trauma (motor vehicle collisions, falls from height, crush injuries), occult spinal fractures, non-contiguous multi-level injuries (occurring in 10% to 15% of cases), and traumatic spinal cord injuries are frequently masked by traumatic brain injury (TBI), severe intoxication, endotracheal intubation, or painful distracting injuries. Maintaining strict spinal motion restriction—utilizing manual in-line stabilization during endotracheal intubation and flat log-rolling precautions rather than prolonged immobilization on rigid backboards (which cause pressure ulcers and respiratory compromise within 2 hours)—is critical for preventing secondary neurological deterioration. Validated clinical decision rules (NEXUS criteria and Canadian C-Spine Rule) allow safe clinical cervical spine clearance exclusively in fully alert, cooperative, non-intoxicated, asymptomatic patients without distracting injuries. In all obtunded, high-energy, or symptomatic trauma patients, multi-detector whole-spine CT scanning from the occiput to the sacrum represents the mandatory gold standard. Magnetic resonance imaging (MRI) is essential for evaluating spinal cord contusion, epidural hematoma, and posterior ligamentous complex disruption. Standardized documentation according to the ASIA/ISNCSCI scale provides the diagnostic and prognostic baseline for multidisciplinary surgical decision-making.
• Chapter Objective: To present the structured protocol for spinal evaluation, clearance, and stabilization in the polytrauma patient according to ATLS principles. The reader should be able to execute spinal motion restriction and airway management safely; apply and interpret the NEXUS criteria and Canadian C-Spine Rule for cervical clearance; select and interpret whole-spine multi-detector CT and MRI; identify non-contiguous spinal injuries and associated blunt cerebrovascular injuries (BCVI); and perform standardized neurological assessment using the ASIA impairment scale.
• Trauma Priorities and Spinal Motion RestrictionThe primary survey prioritizes life over limb/spine. The cervical spine is protected immediately during Airway management using manual in-line stabilization (MILS) with video-laryngoscopy or fiberoptic intubation. Spinal motion restriction (SMR) with a rigid cervical collar and firm mattress replaces the antiquated prolonged use of rigid spine boards, which must be removed as soon as the patient is transferred to the trauma bay stretcher (within 20–30 minutes) to prevent pressure necrosis, pain, and compromised ventilatory mechanics. Hemodynamic resuscitation maintains mean arterial pressure (MAP target 85–90 mmHg) to ensure adequate spinal cord perfusion.
• Clinical Decision Rules: NEXUS vs. Canadian C-Spine RuleCervical spine clearance without imaging is permitted only when validated criteria are fully met: 1) NEXUS Criteria requires the absence of all five criteria: no midline cervical spine tenderness, no focal neurological deficit, normal level of alertness (GCS 15), no evidence of intoxication, and no painful distracting injury; 2) Canadian C-Spine Rule (CCSR) evaluates high-risk factors (age >=65, dangerous mechanism, paresthesias in extremities), low-risk factors permitting safe range of motion assessment (simple rear-end collision, ambulatory at any time, delayed onset of neck pain, absence of midline tenderness), and active rotation (45° left and right). If any high-risk factor is present or the patient cannot actively rotate their neck 45° bilaterally, CT imaging is mandatory.
• Imaging Algorithms: Whole-Spine CT and MRIMulti-detector computed tomography (MDCT) with coronal and sagittal reconstructions from occiput to sacrum is the definitive gold standard for all high-energy trauma, obtunded patients, and symptomatic individuals. Plain radiographs have been entirely superseded by CT due to high miss rates (>50% of cervical fractures). In patients with high-energy cervical trauma (fractures involving the transverse foramen, facet subluxation/dislocation, high cervical C1–C3 fractures), CT Angiography (CTA) of the neck is mandatory to screen for Blunt Cerebrovascular Injury (BCVI) of the vertebral and carotid arteries (Denver criteria). MRI is indicated within 24–48 hours to evaluate spinal cord injury, ligamentous disruption, and epidural hematoma.
• Non-Contiguous Injuries and Associated Visceral TraumaA vital rule in polytrauma is that finding one spinal fracture warrants full whole-spine imaging: non-contiguous secondary spinal fractures occur in 10% to 15% of patients. Furthermore, specific spinal fracture patterns correlate with major visceral trauma: upper thoracic fractures associate with tracheobronchial, aortic, and sternal fractures; thoracolumbar Chance flexion-distraction fractures strongly correlate with intra-abdominal hollow viscus bowel perforations (seatbelt sign); and sacral/pelvic fractures associate with retroperitoneal hemorrhage and genitourinary bladder/urethral tears.
• Neurological Assessment and Secondary SurveyOnce vital stability is achieved, a complete secondary survey includes rolling the patient (log-roll technique maintaining strict spinal alignment) to palpate the entire spinous process chain for focal tenderness, step-offs, and hematomas. Perform standardized ASIA/ISNCSCI neurological examination: test 10 motor key muscles, 28 sensory dermatomes, and digital rectal examination (evaluating deep anal pressure, voluntary sphincter tone, and the bulbocavernosus reflex to assess for spinal shock vs. complete cord transection).
• Clinical Application: In the trauma resuscitation bay, never remove the cervical collar in an obtunded, intubated, or intoxicated patient based solely on normal plain X-rays; obtain a thin-cut whole-spine CT. If a patient with a flexion-distraction Chance fracture of L1 presents with abdominal wall bruising (seatbelt sign), immediately request a contrast-enhanced abdominal CT and consult trauma surgery to rule out occult small bowel perforation. In a patient with a C6–C7 unilateral locked facet and transverse foramen fracture, perform immediate neck CT angiography to evaluate vertebral artery thrombosis or dissection before attempting closed reduction or open operative stabilization. Always remove the rigid spinal backboard immediately upon arrival in the emergency department to prevent severe sacral and occipital pressure ulcers. Maintain mean arterial pressure (MAP) above 85 mmHg with crystalloids and vasopressors (norepinephrine) to prevent secondary ischemic spinal cord injury.
