title: [Complete dislocation of the polyethylene inlay after internal hemipelvectomy and individually fitted tumor endoprosthesis].
abstract: We report about an exceptional complication after internal hemipelvectomy and replacement of the defect with a custom-made endoprosthesis. A complete luxation of the PE-inlay out of the metal cup occurred. Radiologically we assumed a luxation of the femoral head in dorsal direction. Revision after a failed attempt of closed reposition showed a complete luxation of the inlay, which was caused by deficient fixation in the acetabular component. The absence of a contrast wire in the PE-inlay delayed the right diagnosis and made it difficult to find the dislocated inlay in the large wound.
authors.affiliation: Orthopädische Universitätsklinik Essen.
authors.forename: T K
authors.initials: TK
authors.lastname: Lichtinger
authors.forename: M
authors.initials: M
authors.lastname: Lederer
authors.forename: R T
authors.initials: RT
authors.lastname: Müller
mesh_terms: D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary* / Q000601:surgery; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging / Q000556:secondary* / Q000601:surgery; D019544:Equipment Failure Analysis; D006428:Hemipelvectomy; D006622:Hip Prosthesis; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D010384:Pelvic Bones / Q000000981:diagnostic imaging / Q000601:surgery*; D020959:Polyethylene; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D011474:Prosthesis Design; D011859:Radiography; D012086:Reoperation
chemical_list: D020959:Polyethylene