title: Debonding of porous coating of a threaded acetabular component: retrieval analysis.
abstract: This report presents a case of debonding of plasma sprayed porous titanium coating from a threaded acetabular component which caused aseptic loosening of the implant. Weight bearing after delamination caused abrasive damage of the acetabular shell, and particles of the coating embedded in the acetabular liner. Microscopic examination of periprosthetic tissues showed presence of metal particles and macrophage infiltration. Despite microscopic examination of the retrieved component the cause of debonding remains unclear.
authors.affiliation: Department of General Orthopaedics, Musculoskeletal Oncology and Trauma Surgery, Poznan University of Medical Sciences, ul. 28 czerwca 1956 roku, nr 135/147, 61-545 Poznan, Poland. esperal@tlen.pl
authors.forename: Łukasz
authors.initials: Ł
authors.lastname: Łapaj
authors.forename: Jacek
authors.initials: J
authors.lastname: Markuszewski
authors.forename: Tomasz
authors.initials: T
authors.lastname: Rybak
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Wierusz-Kozłowska
mesh_terms: D000077:Acetabulum / Q000473:pathology / Q000502:physiology; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D019544:Equipment Failure Analysis; D005260:Female; D006801:Humans; D016062:Porosity; D019736:Prostheses and Implants; D014025:Titanium / Q000737:chemistry; D016474:Weight-Bearing
chemical_list: D014025:Titanium