Assessment of Chance fracture on Computed Tomography Scan in Tertiary Trauma Care Center of Nepal.

Authors

  • Mamata Bhattarai NAMS , National Trauma Centre
  • Bikash Raj Thapa NAMS , National Trauma Centre
  • Sujan Khadka NAMS , National Trauma Centre
  • Govardhan Thapa NAMS , National Trauma Centre

DOI:

https://doi.org/10.3126/njr.v11i1.38545

Keywords:

Chance fracture, Vertebral Body, Computer tomography

Abstract

 Introduction:

Chance fracture is a horizontal fracture of the vertebra extending from the posterior element to the vertebral body due to flexion-distraction injury and is potentially unstable. The aim of this study was to evaluate the demography and Computed Tomography scan findings in Chance fracture of the spine.  

Method

A retrospective study was conducted at the National Trauma Center, National Academy of Medical Sciences over a period of one year (December 2019 to December 2020). Demographic data, mechanism of injury, and computed tomographic findings of Chance fracture were recorded.  

 Result:

Computed tomography scans of 41 patients with Chance fracture were identified. Fall injury (76%) was the most common cause of Chance fracture followed by road traffic accidents. This fracture was most commonly seen in thoracolumbar junction TLJ (D10-L2); with L1 being the most affected vertebra (36.5%). Among posterior elements, facet distraction (84%) was the most common finding followed by lamina fracture (83%), and pedicle fracture (68%). Regarding vertebral body fracture, involvement of both superior and inferior endplates were common than isolated involvement of either one of them. CT revealed that a burst component was a common finding (68%) in Chance fracture.

 Conclusion: 

Chance fracture was commonly caused by fall injury in our context which is higher in incidence than previously reported. More than half of patients with Chance fracture also had Burst-type components that could influence surgical management. Computed tomography scans is a useful imaging modality for the assessment of Chance fracture and burst component.


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Author Biographies

Bikash Raj Thapa , NAMS , National Trauma Centre

Senior consulatant Radiologist 

Sujan Khadka, NAMS , National Trauma Centre

Radiologist

Govardhan Thapa, NAMS , National Trauma Centre

Radiologist

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Published

2021-06-30

How to Cite

Bhattarai, M., Thapa , B. R. ., Khadka, S., & Thapa, G. (2021). Assessment of Chance fracture on Computed Tomography Scan in Tertiary Trauma Care Center of Nepal. Nepalese Journal of Radiology, 11(1), 5–11. https://doi.org/10.3126/njr.v11i1.38545

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Section

Original Articles