• Daniel T Nagasawa, Timothy T Bui, Carlito Lagman, Seung J Lee, Lawrance K Chung, Tianyi Niu, Alexander Tucker, Bilwaj Gaonkar, Isaac Yang, and Luke Macyszyn.
• Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA.
• World Neurosurg. 2017 Apr 1; 100: 336-341.

ObjectiveTo review the literature on isolated transverse process fractures (ITPFs) and provide evidence for the current practice of conservative management.MethodsThe PubMed database was searched for published literature related to ITPFs. Baseline patient (age, sex, presentation, and mechanism of injury) and fracture (number of fractures, level, and single or multisegmental) characteristics were extracted. Management and outcomes were also recorded. Statistical comparisons were ascertained through n-1 Pearson χ2 tests.ResultsA total of 4 studies comprised of 398 patients with 819 ITPFs were evaluated. Mean age was 33.5 years (69% men and 31% women). No patients presented with neurologic deficits. The most common mechanism of injury was motor vehicle accident (MVA), followed by fall. MVAs were more commonly the cause of ITPFs in pediatric versus adult patients (88% vs. 65%, respectively; P = 0.0001). Falls were more commonly the cause of ITPFs in adults than in children (18% vs. 9%, respectively; P = 0.05). Management strategies involved unrestricted movement, bracing, and orthotics. Radiologic evidence of spinal instability or deformity was not reported in any of the cases. Mean follow-up was 20.5 months.ConclusionsOur data suggests that nonsurgical management of ITPFs leads to complete resolution of the fracture without evidence of permanent neurologic deficit or spinal instability. However, interpretation of our results is limited by the paucity of meaningful literature reporting on long-term outcomes. Nevertheless, the results provide support for conservative management and highlight the existing need to identify markers or scenarios where the diagnosis of ITPF is actually likely to be erroneous.Copyright © 2017 Elsevier Inc. All rights reserved.

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