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Year : 2022  |  Volume : 5  |  Issue : 2  |  Page : 209-214

The correlation between lumbosacral transitional anatomy and pars defect

1 College of Medicine, Tucson, AZ, USA
2 Department of Neurosurgery, University of Arizona, Tucson, AZ, USA

Correspondence Address:
Travis M Dumont
1501 N Campbell Avenue, Room 4303, Tucson, AZ 85724-5070
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/isj.isj_59_21

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Background: Transitional anatomy and pars defects are two common incidental findings seen on imaging of the lumbosacral spine. The purpose of this study was to investigate whether there is a correlation between these two lumbar spine phenomena. Materials and Methods: A retrospective review of spinal imaging was conducted of patients presenting with thoracolumbar fractures at our Level I Trauma Center between 2017 and 2018. Computed tomography scans from 260 patients were obtained and assessed for the presence of lumbosacral transitional anatomy and pars defect. Results: From the 260 patients reviewed, 16 patients had transitional anatomy (6%) and 20 patients had lumbar non-traumatic pars defect (8%). Only one patient presented with both transitional anatomy and pars defect. Overall, there was no difference in incidence of pars defect whether transitional lumbosacral anatomy was present (5%) or not (6.25%), P = 1.00, Fisher’s exact test. Conclusion: The findings suggest that patients with transitional anatomy do not have an increased association with lumbar pars defects.

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