Subaxial cervical spine injuries in children and adolescents.
BACKGROUND
Limited data exist on pediatric subaxial cervical spine injuries. The goal of this study was to characterize the injuries and initial treatment of a large consecutive series of patients with injuries from C3 to C7.


METHODS
Medical records and radiographs of consecutive patients admitted with cervical spine fractures and/or dislocations at a single level 1 pediatric trauma center from 2003 to 2013 were reviewed. Data abstracted included age, injury type and level, mechanism of injury, associated nonspine injuries, neurological status, length of hospitalization, and initial treatment.


RESULTS
Fifty-one patients were grouped into 3 age ranges: infant, 0 to 3 years (2); youth, 4 to 12 years (13); and adolescent, 13 to 16 years (36). Isolated fractures were identified in both infants and accounted for most of injuries in youths (85%) and adolescents (86%). Single vertebra or single vertebral level injuries were present in 65% of patients, most commonly at C7 (36%) or C6 (29%). No correlation existed between cervical level injured and patient age. Multiple cervical spine injuries occurred in 1 infant, 3 youths, and 14 adolescents. Other concomitant thoracic and/or lumbar spine injuries were found in 1 infant and 3 adolescents. The most common mechanisms of injury were motor vehicle accidents (53%) and sports (14%). High-energy trauma was associated with higher rates of noncontiguous spinal injuries and associated nonspinal injuries, with a longer length of hospitalization. Neurological deficits were observed in 8 patients: 1 infant, 2 youths, and 5 adolescents, of which 5 resulted from high-energy trauma. One infant and all youth patients were treated nonoperatively; 26 adolescents (73%) were treated in a cervical collar or with observation, 1 was treated with halo-vest immobilization, and 9 had surgical treatment.


CONCLUSIONS
Most subaxial cervical spine injuries in pediatric and adolescent patients are isolated fractures at C6 and C7. High-energy mechanisms are associated with noncontiguous spinal injuries and other nonspine injuries. Most patients can be treated in a cervical collar, but adolescent patients are more likely to require halo placement or surgical intervention.


METHODS
Level IV-retrospective, diagnostic.
*Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee-Campbell Clinic †Le Bonheur Children's Hospital, Memphis, TN.
Robert F
RF
Murphy
Austin R
AR
Davidson
Derek M
DM
Kelly
William C
WC
Warner
Jeffrey R
JR
Sawyer
D000063:Accidents, Traffic; D000293:Adolescent; D001265:Athletic Injuries / Q000150:complications; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging / Q000293:injuries; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D004204:Joint Dislocations / Q000209:etiology / Q000601:surgery; D007902:Length of Stay; D008297:Male; D009460:Neurologic Examination; D019637:Orthopedic Procedures / Q000379:methods*; D011859:Radiography; D012189:Retrospective Studies; D016103:Spinal Fractures / Q000150:complications / Q000175:diagnosis / Q000601:surgery; D013714:Tennessee; D014193:Trauma Centers / Q000706:statistics & numerical data; D016896:Treatment Outcome