BACKGROUND: The incidence of cervical spine injuries (CSI) in people over 65 years of age from low-energy mechanisms is far greater than in younger populations. Algorithms and decision rules exist for selection of trauma patients requiring cervical spine imaging.
OBJECTIVES: To determine the validity of the NEXUS criteria in the elderly population with low-mechanism injuries.
METHODS: We prospectively conducted computed tomography (CT) imaging in patients > 65 years of age presenting with fall from standing height or less to rule out predefined clinically significant CSI. Eligible patients were prospectively categorized into NEXUS positive or negative.
RESULTS: There were 169 patients included in the final analyses. One hundred twenty (71%) patients in the cohort were classified as "NEXUS positive." Eleven patients (6.5% of the cohort) had CSI detected on CT imaging of the cervical spine. Nine patients had clinically significant CSI. The NEXUS decision instrument demonstrated 88.9% sensitivity (50.7-99.4%) and 98% negative predictive value (NPV) (87.8-99.9%) in detecting clinically significant CSI. The NEXUS decision instrument demonstrated 81.8% sensitivity (47.8-96.8%) and 95.9% NPV (84.9-99.3%) in detecting any CSI.
CONCLUSION: In our study, the NEXUS decision instrument was not a valid tool to rule out imaging for patients > 65 years of age presenting after a fall from standing height or less. We advocate the liberal use of CT imaging of the cervical spine in this cohort of patients to rule out cervical spine injury.