title: [Pseudotumour in metal-on-metal hip arthroplasty].
abstract: Pseudotumours are sterile inflammatory lesions that can be found in soft tissues surrounding metal-on-metal and more rare metal-on-polyethylene hip arthroplasties. They may cause local tissue and bone destruction and necessitate revision surgery. The pathogenesis of these lesions remain unclear; however, cups in an adverse position lead to high metal ion levels which is associated with pseudotumours. The prodromal symptom of pseudotumour is persistent inguinal pain, but lesions may also be silent. All patients with MoM hip arthroplasties should be monitored according to the national recommendations.
authors.affiliation: Ortopædkirurgisk Afdeling, Aarhus Universitetshospital, Tage-Hansens Gade 2, 8000 Aarhus C, Denmark. mettehh20@gmail.com
authors.forename: Mette Holm
authors.initials: MH
authors.lastname: Hjorth
authors.forename: Kjeld
authors.initials: K
authors.lastname: Søballe
authors.forename: Nina
authors.initials: N
authors.lastname: Lorenzen
authors.forename: Maiken
authors.initials: M
authors.lastname: Stilling
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects* / Q000295:instrumentation; D005260:Female; D005549:Foreign-Body Reaction / Q000209:etiology* / Q000601:surgery; D006104:Granuloma, Plasma Cell / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D006622:Hip Prosthesis / Q000009:adverse effects; D006801:Humans; D061825:Metal-on-Metal Joint Prostheses / Q000009:adverse effects*; D008875:Middle Aged; D011859:Radiography; D012086:Reoperation; D016896:Treatment Outcome