Abstract
We studied the risk of associated spinal and nonspinal injuries (NSIs) in the setting of observed thoracolumbar transverse process fracture (TPF) and examined the clinical management of TPF. Patients treated at a Level I trauma center over a 5-year period were screened for thoracolumbar TPF. Prevalence of associated spinal fractures and NSIs as well as relationship to level of TPF was explored. Clinical management and follow-up outcomes were reviewed. A total of 252 patients with thoracolumbar TPFs were identified. NSIs were commonly observed (70.6%, n= 178); however, associated spinal fractures were more rarely seen (24.6%, n= 62, P < 0.0001). No patients had neurological deficits attributable to TPFs, and only 3 patients with isolated TPFs were treated with orthosis. Among patients with outpatient follow-up (70.6%, n= 178), none developed delayed-onset neurological deficits or spinal instability. Thoracic TPFs (odds ratio= 3.56, 95% confidence interval= 1.20-10.56) and L1 TPFs (odds ratio= 2.48, 95% confidence interval= 1.41-4.36) were predictive of associated thoracic NSIs. L5 TPF was associated with pelvic fractures (odds ratio= 6.30, 95% confidence interval= 3.26-12.17). There was no difference in rate of NSIs between isolated TPF (70.0%) and TPF with associated clinically relevant spinal fracture (72.6%, P= 0.70). NSIs are nearly 3 times more common in patients with thoracolumbar TPFs than associated clinically relevant spinal fractures. Spine service consultation for TPF may be unnecessary unless fracture is associated with a clinically relevant spinal injury, which represents a minority of cases. However, detection of TPF should raise suspicion for high likelihood of associated NSIs.
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