Radiographic and CT features of metallosis in a lame dog after total hip replacement: the cloud sign.

Autor: Lucaci FD; Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania., Battiato P; Department of Veterinary Medicine and Animal Sciences, University of Milan, Lodi, Italy., Bassi J; Department of Veterinary Medicine and Animal Sciences, University of Milan, Lodi, Italy., Zani DD; Department of Veterinary Medicine and Animal Sciences, University of Milan, Lodi, Italy., De Zani D; Department of Veterinary Medicine and Animal Sciences, University of Milan, Lodi, Italy., Vezzoni A; Clinica Veterinaria Vezzoni, Cremona, Italy., Stranieri A; Department of Veterinary Medicine and Animal Sciences, University of Milan, Lodi, Italy., Longo M; Department of Veterinary Medicine and Animal Sciences, University of Milan, Lodi, Italy.
Jazyk: angličtina
Zdroj: Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association [Vet Radiol Ultrasound] 2024 Jan; Vol. 65 (1), pp. 49-53. Date of Electronic Publication: 2023 Dec 22.
DOI: 10.1111/vru.13322
Abstrakt: A 2-year-old female American Akita was referred for CT of the pelvis and hindlimbs due to a left hindlimb lameness after a left total hip replacement. Referral radiographs and CT images demonstrated amorphous soft-tissue and mineral opacities surrounding the proximal femur and the prosthetic stem, consistent with the "cloud sign" reported as a characteristic of metallosis in humans. Dorsomedial displacement of the prosthetic head, multiple foci of geographic osteolysis alongside the "cloud sign", presumed pseudotumor lesions, and medial iliac lymphadenopathy were also identified with CT. Metallosis was confirmed based on ultrasound-guided cytology, revision surgery, and histopathology.
(© 2023 The Authors. Veterinary Radiology & Ultrasound published by Wiley Periodicals LLC on behalf of American College of Veterinary Radiology.)
Databáze: MEDLINE
Externí odkaz: