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Arc center distance as a novel quantitative radiographic parameter for volar Barton fractures

  • Trauma Surgery
  • Published:
Archives of Orthopaedic and Trauma Surgery Aims and scope Submit manuscript

Abstract

Purpose

The aims of this study were to investigate conventional radiographic parameters and introduce a novel parameter (arc center distance, ACD) for volar Barton fractures.

Methods

Twenty-four cases of volar Barton fracture were retrospectively analyzed. We measured volar tilt angle (VTA), anteroposterior distance (APD), teardrop angle (TDA), and capitate-to-axis-of-radius distance (CARD) on lateral plain radiographs. The ACD was measured on the sagittal images of computed tomography scans. VTAs, APDs, TDAs, and CARDs were compared between the fractured and normal contralateral wrist. The area under the receiver operating characteristic curve was calculated for each parameter.

Results

TDAs did not differ significantly between the fractured wrists and the controls. On the other hand, VTAs, APDs, and CARDs were all significantly greater in the fractured wrists (mean values were 17.25°, 20.70 mm, and − 3.40 mm, respectively). The area under the curve value was highest (0.943) for the ACD. When a cutoff value of 1.02 mm was used as a threshold, a sensitivity of 100% and specificity of 80.95% were achieved.

Conclusions

The mean values of conventional parameters (VTA, APD, TDA and CARD) in volar Barton fractures were presented. The ACD can be useful parameter for quantitatively evaluating volar Barton fractures.

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Acknowledgements

We thank Kwang Ryeol Lee, our first-year orthopedic resident, for his participation in the ACD measurements.

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The authors received no financial support for the research, authorship, or publication of this article.

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Correspondence to Jeong Hyun Lee.

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The authors declare that they have no conflict of interest.

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This retrospective study was approved by Seoul National University College of Medicine / Seoul National University Hospital Institutional Review Board. IRB No.: H-2104-017-1210.

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Informed consent was waived by Seoul National University College of Medicine / Seoul National University Hospital Institutional Review Board.

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Kim, M.B., Lee, J.H. & Lee, Y.H. Arc center distance as a novel quantitative radiographic parameter for volar Barton fractures. Arch Orthop Trauma Surg 142, 3765–3770 (2022). https://doi.org/10.1007/s00402-021-04240-0

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  • DOI: https://doi.org/10.1007/s00402-021-04240-0

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