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Emergency and Acute Medicine: Pediatric Cervical Spine Injury
Pediatric cervical spine injury is relatively uncommon, occurring in only about 1–2% of children with severe blunt trauma, but it carries significant risk due to unique anatomical and biomechanical features. Younger children, particularly those under 8 years of age, are more prone to upper cervical spine injuries (C1–C3) because of a higher spinal fulcrum, proportionally larger head size, weaker neck musculature, ligamentous laxity, and immature vertebral structures. In contrast, older children tend to sustain lower cervical spine and more diffuse injuries, including vertebral fractures. Certain congenital or syndromic conditions—such as Down syndrome and other skeletal disorders—further increase susceptibility to instability and injury.
A distinct feature of pediatric trauma is spinal cord injury without radiographic abnormality (SCIWORA), which occurs more frequently in younger children. In this condition, children may present with clear neurologic deficits despite normal initial imaging. Symptoms may include spinal shock, weakness, or sensory disturbances, and importantly, these symptoms may be transient or delayed, sometimes appearing hours to days after the injury.
The most common causes of pediatric cervical spine injury vary with age. In neonates, birth-related trauma such as breech delivery may be responsible. In younger children, motor vehicle collisions and falls predominate, while in older children and adolescents, sports-related injuries become more common. Clinically, patients may present with neck pain, restricted range of motion, or neurologic deficits, although symptoms may be subtle or masked by altered mental status or distracting injuries. Abnormal vital signs such as hypotension, bradycardia, or respiratory compromise may indicate spinal cord involvement.
On examination, findings may include midline cervical tenderness, muscle spasm, and neurologic abnormalities such as paresthesias, weakness, flaccidity, or paralysis. Specific spinal cord syndromes may also be identified. For example, anterior cord syndrome results in motor paralysis with loss of pain sensation but preserved proprioception, while central cord syndrome typically causes greater weakness in the upper extremities than the lower. Brown-Séquard syndrome presents with asymmetric motor and sensory deficits. In preverbal children, assessment is particularly challenging, as they may not be able to communicate symptoms effectively.
Evaluation requires a cautious and systematic approach. Cervical spine radiographs are the initial imaging modality in children with concerning features such as pain, neurologic symptoms, altered consciousness, or significant mechanism of injury. Standard views include anteroposterior, lateral, and odontoid projections, ensuring visualization of all cervical levels. However, interpretation can be difficult due to normal developmental variants, such as pseudosubluxation of C2 on C3 or incomplete ossification of vertebral structures, which may mimic injury. CT scanning is indicated when radiographs are inconclusive or suspicious, while MRI is essential when spinal cord injury is suspected, particularly in cases of SCIWORA.
Clinical decision tools such as the NEXUS criteria may be applied in children older than 8 years, but are less reliable in younger patients. Therefore, a lower threshold for imaging is often necessary in younger children.
Management begins with strict cervical spine immobilization, using appropriately sized collars and supportive padding. Due to the relatively large head in young children, padding beneath the torso may be required to maintain neutral alignment and prevent neck flexion. During airway management, in-line stabilization must be maintained, and patients should be logrolled carefully. In sports injuries, helmets should generally be left in place unless they interfere with airway management.
In the emergency setting, any child with neurologic deficits or confirmed injury requires urgent neurosurgical or orthopedic consultation. The use of high-dose corticosteroids such as methylprednisolone remains controversial and should only be considered in consultation with specialists, given the risk of complications such as immunosuppression.
All children with altered mental status, neurologic deficits, or confirmed fractures should be admitted for monitoring and further management. Children with normal mental status, no imaging abnormalities, and no neurologic findings may be discharged with strict instructions. Importantly, caregivers must be educated about the possibility of delayed symptoms in SCIWORA, and advised to return immediately if the child develops weakness, numbness, or paralysis.
Key pitfalls include failure to recognize the unique anatomy of the pediatric cervical spine, misinterpreting normal variants as injuries or vice versa, and underestimating the potential for delayed neurologic deterioration. Maintaining immobilization throughout evaluation, using appropriate imaging, and ensuring close follow-up are essential to prevent missed injuries and improve outcomes.
Pediatric cervical spine injury is relatively uncommon, occurring in only about 1–2% of children with severe blunt trauma, but it carries significant risk due to unique anatomical and biomechanical features. Younger children, particularly those under 8 years of age, are more prone to upper cervical spine injuries (C1–C3) because of a higher spinal fulcrum, proportionally larger head size, weaker neck musculature, ligamentous laxity, and immature vertebral structures. In contrast, older children tend to sustain lower cervical spine and more diffuse injuries, including vertebral fractures. Certain congenital or syndromic conditions—such as Down syndrome and other skeletal disorders—further increase susceptibility to instability and injury.
A distinct feature of pediatric trauma is spinal cord injury without radiographic abnormality (SCIWORA), which occurs more frequently in younger children. In this condition, children may present with clear neurologic deficits despite normal initial imaging. Symptoms may include spinal shock, weakness, or sensory disturbances, and importantly, these symptoms may be transient or delayed, sometimes appearing hours to days after the injury.
The most common causes of pediatric cervical spine injury vary with age. In neonates, birth-related trauma such as breech delivery may be responsible. In younger children, motor vehicle collisions and falls predominate, while in older children and adolescents, sports-related injuries become more common. Clinically, patients may present with neck pain, restricted range of motion, or neurologic deficits, although symptoms may be subtle or masked by altered mental status or distracting injuries. Abnormal vital signs such as hypotension, bradycardia, or respiratory compromise may indicate spinal cord involvement.
On examination, findings may include midline cervical tenderness, muscle spasm, and neurologic abnormalities such as paresthesias, weakness, flaccidity, or paralysis. Specific spinal cord syndromes may also be identified. For example, anterior cord syndrome results in motor paralysis with loss of pain sensation but preserved proprioception, while central cord syndrome typically causes greater weakness in the upper extremities than the lower. Brown-Séquard syndrome presents with asymmetric motor and sensory deficits. In preverbal children, assessment is particularly challenging, as they may not be able to communicate symptoms effectively.
Evaluation requires a cautious and systematic approach. Cervical spine radiographs are the initial imaging modality in children with concerning features such as pain, neurologic symptoms, altered consciousness, or significant mechanism of injury. Standard views include anteroposterior, lateral, and odontoid projections, ensuring visualization of all cervical levels. However, interpretation can be difficult due to normal developmental variants, such as pseudosubluxation of C2 on C3 or incomplete ossification of vertebral structures, which may mimic injury. CT scanning is indicated when radiographs are inconclusive or suspicious, while MRI is essential when spinal cord injury is suspected, particularly in cases of SCIWORA.
Clinical decision tools such as the NEXUS criteria may be applied in children older than 8 years, but are less reliable in younger patients. Therefore, a lower threshold for imaging is often necessary in younger children.
Management begins with strict cervical spine immobilization, using appropriately sized collars and supportive padding. Due to the relatively large head in young children, padding beneath the torso may be required to maintain neutral alignment and prevent neck flexion. During airway management, in-line stabilization must be maintained, and patients should be logrolled carefully. In sports injuries, helmets should generally be left in place unless they interfere with airway management.
In the emergency setting, any child with neurologic deficits or confirmed injury requires urgent neurosurgical or orthopedic consultation. The use of high-dose corticosteroids such as methylprednisolone remains controversial and should only be considered in consultation with specialists, given the risk of complications such as immunosuppression.
All children with altered mental status, neurologic deficits, or confirmed fractures should be admitted for monitoring and further management. Children with normal mental status, no imaging abnormalities, and no neurologic findings may be discharged with strict instructions. Importantly, caregivers must be educated about the possibility of delayed symptoms in SCIWORA, and advised to return immediately if the child develops weakness, numbness, or paralysis.
Key pitfalls include failure to recognize the unique anatomy of the pediatric cervical spine, misinterpreting normal variants as injuries or vice versa, and underestimating the potential for delayed neurologic deterioration. Maintaining immobilization throughout evaluation, using appropriate imaging, and ensuring close follow-up are essential to prevent missed injuries and improve outcomes.
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