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J Wrist Surg 2025; 14(04): 333-341
DOI: 10.1055/s-0044-1782236
Scientific Article

Cone-Beam Computed Tomography Influences the Classification and Choice of Treatment for Distal Radius Fractures

Sara Eriksson
1   Department of Orthopedic Surgery, Norrköping, Sweden
,
Firas Rasool
2   Department of Radiology, Norrköping, Sweden
,
Ida Dånmark
3   Department of Orthopedic Surgery, Linköping, Sweden
,
Claudia Weber Lensing
2   Department of Radiology, Norrköping, Sweden
,
Jonas Werner
1   Department of Orthopedic Surgery, Norrköping, Sweden
,
Lotta Fornander
1   Department of Orthopedic Surgery, Norrköping, Sweden
4   Department of Biomedical and Clinical Sciences, Linköping University, Norrköping, Sweden
› Institutsangaben
Funding This work was supported by the Medical Research Council of Region Östergötland (RALF grant number 06000948).
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Abstract

Background and Purposes The objectives of this study were to investigate the inter- and intraobserver agreement in the classification of distal radius fractures (DRFs) according to the AO and the Buttazzoni classification system, for the two different radiology modalities: conventional radiography (CR) and cone-beam computed tomography (CBCT). Furthermore, we aimed to explore whether the radiological modality used influences the choice of treatment.

Materials and Methods Fifty consecutive patients with DRFs were included. The fractures were visualized by both CR and CBCT. All images were independently reviewed by five observers (three orthopaedic surgeons and two radiologists) and the fractures were classified according to the AO and the Buttazzoni classification. Agreement on fracture classification between CR and CBCT, interobserver agreement for all observers, and intraobserver agreement for a repeated assessment after 8 weeks were calculated. Treatment was suggested by the orthopaedic surgeons.

Results The Buttazzoni classification showed higher interobserver agreement than the AO classification, but the agreement for the AO classification was increased using CBCT. The agreement between classification of fractures by CR and CBCT for each observer varied from fair to moderate. CBCT was superior for classification of dorsally comminute fractures using both the AO and the Buttazzoni system. In 38% (n = 57) of the observations, the suggested treatment was changed when CBCT was used, both from less advanced to more advanced and vice versa.

Conclusion The choice of radiological modality affects both the classification and the choice of treatment for DRFs and CR tends to underestimate the complexity of DRFs.

Level of Evidence Level I.

Keywords

distal radius fracture - radiology - classification

Authors' Contributions

L.F. designed the study. L.F., I.D., J.W., C.W.L., F.R., and S.E. planned and implemented the study. S.E. and F.R. collected the data and L.F., S.E., and F.R. analyzed it. All of the authors interpreted the results, wrote, and critically reviewed the manuscript.


Patient's Consent

Written informed consent was obtained from the patients for their anonymized information to be published in this article.




Publikationsverlauf

Eingereicht: 01. Januar 2024

Angenommen: 07. Februar 2024

Artikel online veröffentlicht:
08. März 2024

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