ORIGINAL ARTICLE   

Il Giornale Italiano di Radiologia Medica 2019 Maggio-Giugno;6(3):204-12

DOI: 10.23736/S2283-8376.19.00173-6

Copyright © 2019 EDIZIONI MINERVA MEDICA

language: English, Italian

Multidetector computed tomography with single energy metal artifact reduction algorithm in the complications following hip and knee replacement. Preliminary experience

Mario FINAZZO ¹ ✉, Cristiana DURANTI ², Giuseppe PERITORE ², Francesca FINAZZO ², Domenico MESSANA ²

¹ Radiology Firm, Finazzo S.r.l., Palermo, Italy; ² Unit of Radiology, ARNAS Civico Di Cristina Benfratelli, Palermo, Italy

BACKGROUND: The aim of this study was to assess 160 slice multidetector CT with SEMAR algorithm in the detection and characterization of the main complications following hip and knee arthroplasty.
METHODS: Eighteen patients were studied. Twelve had total hip replacement, five had total knee arthroplasty, one patient had unicompartimental knee replacement. All examinations were performed by a 160 slice - 80 row (0.5 x 80 mm) computed tomography (CT) scanner (Canon Aquilion Prime 160) with iterative reconstruction (AIDR 3D) and SEMAR algorithms. Image quality of prosthesis, bone-prosthesis interface, bone and soft tissue visualization was assessed. Furthermore, possible complications were sought.
RESULTS: Image quality of prosthesis, bone-prosthesis interface, bone and soft tissue was adequate for diagnosis in all cases (18/18; 100%). The following complications were detected in 10 patients (55%): aseptic implant loosening in 6 cases (33%); foreign body reaction in 1 case (5.5%); foreign body reaction with pseudotumor in 1 case (5.5%); septic loosening (infection) in 1 case (5.5%); prosthetic fracture in 1 case (5.5%).
CONCLUSIONS: Multidetector CT with SEMAR algorithm is an effective tool in the detection of the main complications following hip and knee replacement.

KEY WORDS: Multidetector computed tomography; Arthroplasty, replacement, knee; Arthroplasty, replacement, hip