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CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2024; 34(03): 449-459
DOI: 10.1055/s-0044-1779266
Original Article

A New Radiological Scoring System as a Method of Assessing Sclerotherapy Treatment Response for Aneurysmal Bone Cysts: A Retrospective Study

Mohsin Hussein 
1   Department of Radiology, University Hospitals of Leicester NHS Trust, Leicester, United Kingdom
,
Mark Davies
2   Department of Musculoskeletal Radiology, The Royal Orthopaedic Hospital, Birmingham, United Kingdom
,
Ganesh Hegde
2   Department of Musculoskeletal Radiology, The Royal Orthopaedic Hospital, Birmingham, United Kingdom
,
Christine Azzopardi
2   Department of Musculoskeletal Radiology, The Royal Orthopaedic Hospital, Birmingham, United Kingdom
,
Anish Patel
2   Department of Musculoskeletal Radiology, The Royal Orthopaedic Hospital, Birmingham, United Kingdom
,
Steve James
2   Department of Musculoskeletal Radiology, The Royal Orthopaedic Hospital, Birmingham, United Kingdom
,
Rajesh Botchu
2   Department of Musculoskeletal Radiology, The Royal Orthopaedic Hospital, Birmingham, United Kingdom
› Institutsangaben
Funding None.
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Abstract

Background A widely accepted set of imaging criteria or classification has not yet been adopted to evaluate response to treatment by percutaneous sclerotherapy for aneurysmal bone cyst (ABC). In this article, we described and illustrated the Royal Orthopaedic Hospital (ROH) scoring system which is a new, reproducible, and objective tool to evaluate the radiological response. We also reported our institutional experience in the efficacy of computed tomography (CT)-guided sclerotherapy for treating such lesions.

Patients and Methods A retrospective analysis was conducted for 19 patients who underwent CT-guided sclerotherapy with doxycycline and albumin to treat ABC. Follow-up magnetic resonance imaging, at a minimum of 12 months, was assessed according to the four ROH scoring system parameters: cystic component, fluid–fluid level, presence of consolidation, and cortical integrity. The cumulative score was used to grade response as either: excellent, good, equivocal, or poor.

Results Out of 19 patients with a mean age of 17.8 years, 11 cases occurred in the long bones, 5 cases in the pelvis, and 1 in each of the C3 vertebral body, scapula, and talus. The mean parameter of response score for cystic component was 2, fluid–fluid level was 1.3, consolidation was 2, and cortical integrity was 2.1. Four cases showed excellent response, 12 cases showed good response, 2 cases showed equivocal response, and 1 case showed poor response. Interrater reliability was excellent (κ = 0.9).

Conclusion The ROH scoring system provides the radiologist and surgeon with an objective method to score imaging parameters of response independently and achieve a grade based on the cumulative score.

Keywords

sclerotherapy - aneurysmal bone cyst - MRI - scoring system


Publikationsverlauf

Artikel online veröffentlicht:
23. Februar 2024

© 2024. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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