Added value of 18F-FDG PET/CT in diagnosing infected hip prosthesis

Autor: Robert M. Kwee, Jan Geurts, René E. Weijers, Geert H I M Walenkamp, Boudewijn Brans, Wouter Am Broos
Přispěvatelé: MUMC+: DA Beeldvorming (5), Health Services Research, MUMC+: DA BV AIOS Nucleaire Geneeskunde (9), RS: CAPHRI - R3 - Functioning, Participating and Rehabilitation, Orthopedie, MUMC+: MA Orthopedie (9)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Acta Radiologica, 59(5), 569-576. SAGE Publications Ltd
ISSN: 0284-1851
Popis: Background The diagnosis of infected hip prosthesis is frequently not straightforward yet very important as it changes treatment. Purpose To retrospectively investigate the added value of 18F-FDG PET/CT to conventional tests including radiography, erythrocyte sedimentation rate (ESR)/C-reactive protein (CRP) testing, and joint aspiration, in diagnosing infected hip prosthesis. Material and Methods Seventy-eight hip prostheses of 78 patients (55% men; mean age = 66.5 years; age range = 30–85 years) with non-specific clinical presentation, i.e. no abscess or sinus tract communicating with the joint space at clinical examination, were analyzed. Cultures of intra-articular fluid and peri-implant tissues after revision surgery or clinical follow-up ≥6 months served as gold standard. Areas under the receiver operating characteristic curves (AUCs) of radiography, ESR/CRP testing, aspiration culture, and white blood cell (WBC) count without and with the addition of 18F-FDG PET/CT were compared. Results The addition of 18F-FDG PET/CT increased AUCs: for radiography with 0.212, P = 0.001; for ESR/CRP testing with 0.076, P = 0.072; for aspiration culture with 0.126, P = 0.032; and for aspiration WBC count with 0.191, P = 0.035. Conclusion This study shows that 18F-FDG PET/CT adds to individual conventional tests in diagnosing infected hip prosthesis. It may improve the preoperative planning and should therefore be considered in the diagnostic work-up. Future studies should define the exact place of 18F-FDG PET/CT in the diagnostic work-up of periprosthetic joint infection.
Databáze: OpenAIRE