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Pseudotumors in association with well-functioning metal-on-metal hip prostheses: a case-control study using three-dimensional computed tomography and magnetic resonance imaging.

Hart, AJ; Satchithananda, K; Liddle, AD; Sabah, SA; McRobbie, D; Henckel, J; Cobb, JP; ... Mitchell, AW; + view all (2012) Pseudotumors in association with well-functioning metal-on-metal hip prostheses: a case-control study using three-dimensional computed tomography and magnetic resonance imaging. J Bone Joint Surg Am , 94 (4) 317 - 325. 10.2106/JBJS.J.01508. Green open access

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Abstract

Many papers have been published recently on the subject of pseudotumors surrounding metal-on-metal hip resurfacing and replacement prostheses. These pseudotumors are sterile, inflammatory lesions within the periprosthetic tissues and have been variously termed masses, cysts, bursae, collections, or aseptic lymphocyte-dominated vasculitis-associated lesions (ALVAL). The prevalence of pseudotumors in patients with a well-functioning metal-on-metal hip prosthesis is not well known. The purpose of this study was to quantify the prevalence of pseudotumors adjacent to well-functioning and painful metal-on-metal hip prostheses, to characterize these lesions with use of magnetic resonance imaging, and to assess the relationship between their presence and acetabular cup position with use of three-dimensional computed tomography.

Type: Article
Title: Pseudotumors in association with well-functioning metal-on-metal hip prostheses: a case-control study using three-dimensional computed tomography and magnetic resonance imaging.
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.2106/JBJS.J.01508
Publisher version: http://dx.doi.org/10.2106/JBJS.J.01508
Language: English
Additional information: Copyright © 2012. All Rights Reserved. The Journal of Bone and Joint Surgery, Inc. STRIATUS Orthopaedic Communications
Keywords: Adult, Case-Control Studies, Cysts, Female, Hip Prosthesis, Humans, Imaging, Three-Dimensional, Magnetic Resonance Imaging, Male, Middle Aged, Prevalence, Prospective Studies, Prosthesis Design, Tomography, X-Ray Computed
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci > Department of Ortho and MSK Science
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Eastman Dental Institute
URI: https://discovery.ucl.ac.uk/id/eprint/1353519
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