Morphological Aspects of Pyogenic Spinal Epidural Abscess

Main Article Content

Pedro Luis Bazán
Alfredo Osvaldo Godoy Adaro
Emmanuel Padini
Enrique Alcides Casco
Mathias Maruñak

Abstract

Introduction: A pyogenic spinal epidural abscess is an infectious collection inside the spinal canal, outside the dural sac. The diagnosis is difficult and the consequences are devastating due to compression or vascular compromise. MRI has a high diagnostic sensitivity and specificity, which improves when a contrast medium is used.
Objectives: To determine the inter- and intra-observer reproducibility, and to discriminate the different parameters and differences between specialties.
Materials and Methods: Twenty-seven independent observers evaluated 5 parameters: region, location, involvement, association, and perivertebral, anterior, lateral, or posterior extravertebral abscess. The kappa coefficient was used to analyze 35 cases on three occasions.
Results: The overall intra- and inter-observer global agreement level is kappa 0.76, with the following values obtained: region 0.94; location 0.88; involvement 0.55; association 0.67 and perivertebral abscess 0.77. The first three parameters indicate volume, while the final two indicate the presence of vertebral infectious foci outside the canal.
Conclusions: The proposed morphological classification is simple to use and has high intra- and inter-observer reproducibility. The most reproducible parameters are region and location(>0.87).

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Article Details

How to Cite
Bazán, P. L., Godoy Adaro, A. O., Padini, E., Casco, E. A., & Maruñak, M. (2023). Morphological Aspects of Pyogenic Spinal Epidural Abscess. Revista De La Asociación Argentina De Ortopedia Y Traumatología, 88(2), 148-155. https://doi.org/10.15417/issn.1852-7434.2023.88.2.1513
Section
Clinical Research
Author Biographies

Pedro Luis Bazán, Spinal Pathology Unit, Orthopedics and Traumatology Service, Hospital Interzonal General de Agudos “General San Martín”, La Plata, Buenos Aires, Argentina

Spinal Pathology Unit, Orthopedics and Traumatology Service, Hospital Interzonal General de Agudos “General San Martín”, La Plata, Buenos Aires, Argentina

Alfredo Osvaldo Godoy Adaro, Spine sector, Clínica Modelo S.A. Paraná, Entre Ríos, Argentina

Spine sector, Clínica Modelo S.A. Paraná, Entre Ríos, Argentina

Enrique Alcides Casco, Orthopedics and Traumatology Service, IPS Hospital, Asunción, Paraguay

Orthopedics and Traumatology Service, IPS Hospital, Asunción, Paraguay

Mathias Maruñak, Sanatorio Integral IOT, Posadas, Misiones, Argentina

Sanatorio Integral IOT, Posadas, Misiones, Argentina

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