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The paediatric cervical seat belt syndrome
Insights
Child restraints can cause serious neck injuries, including cervical spine fractures and spinal cord damage, despite their protective benefits in motor vehicle accidents. Proper restraint fit is crucial to prevent such severe outcomes.
Area of Science:
- Pediatric Traumatology
- Orthopedic Surgery
- Emergency Medicine
Background:
- Motor vehicle accidents are a significant cause of pediatric injury.
- Child restraint systems are designed to prevent severe trauma but can paradoxically cause specific injury patterns.
- The cervical seat belt syndrome is a rare but serious consequence of restraint use in children.
Purpose of the Study:
- To investigate the incidence and characteristics of cervical seat belt syndrome in children admitted with motor vehicle accident injuries.
- To analyze the types of cervical spine injuries and associated trauma in affected children.
- To identify potential mechanisms of injury related to different types of child restraints.
Main Methods:
- Retrospective review of pediatric trauma admissions over a 9-year period.
- Identification of cases with cervical seat belt syndrome among 541 children injured as motor vehicle passengers.
- Analysis of injury patterns, restraint types, and treatment outcomes.
Main Results:
- Seven out of 541 children (1.3%) presented with cervical seat belt syndrome.
- Injuries included proximal and lower cervical spine fractures/fracture-subluxations, head injuries, and severe cervical spinal cord injuries.
- One child with severe head and complete cervical cord injury died; others had varied recovery, with some requiring ongoing care for neurological deficits or airway complications.
Conclusions:
- Cervical seat belt syndrome, though rare, represents a significant risk of serious neck and spinal cord injury in children using restraints.
- Injury mechanisms likely involve neck flexion over poorly fitting restraints or hyperflexion during torso restraint.
- While non-operative treatment can stabilize the spine, long-term outcomes for affected children can be poor, highlighting the need for optimized restraint design and usage.
Abstract:
During a 9-year period, 541 children were admitted with injuries sustained as passengers in motor vehicle accidents. Of these, seven (1.3 per cent) had the cervical seat belt syndrome. Five children had fractures or fracture-subluxations of the proximal cervical spine, while two had injuries of the lower cervical spine. Head injuries occurred in four children, severe cervical spinal cord injuries in three, while a fracture of the larynx and recurrent laryngeal nerve palsies occurred in one child. All children were wearing three- or four-point restraints. In the former group, the neck injuries probably resulted from flexion of the neck over the poorly fitting sash of an adult-type lap-sash belt, while in the latter group, the injuries probably resulted from hyperflexion of the neck while the torso was securely restrained. One child died from a severe head injury and a complete cervical cord injury. Satisfactory spinal alignment and stability were achieved in the surviving children by non-operative treatment. However, only three children recovered completely from their injuries. Two require continuing care for cervical spinal cord damage and one has persistent tracheal stenosis and paralysis of the vocal cords.