title: [Dislocation of the polyethylene in a patello-femoral replacement with a movable patella].
abstract: Patellofemoral arthroplasty is an infrequently used surgical technique because of its controversial results. In an attempt to improve the results, a design with a mobile-bearing poliethylene patellar component has been developed. We describe a clinical case with an unusual complication: the dislocation of poliethylene from the metal backing; and accordingly, we carried out a literature review of this complication.
authors.affiliation: Servicio de Traumatología y Cirugía Ortopédica, Hospital Arnau de Vilanova, Valencia, España. mjsanneb@hotmail.com
authors.forename: M J
authors.initials: MJ
authors.lastname: Sangüesa Nebot
authors.forename: F
authors.initials: F
authors.lastname: Cabanes Soriano
authors.forename: R
authors.initials: R
authors.lastname: Fernández Gabarda
authors.forename: A
authors.initials: A
authors.lastname: Darder Prats
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007720:Knee Prosthesis; D008875:Middle Aged; D057071:Patellofemoral Joint; D020959:Polyethylene; D011475:Prosthesis Failure
chemical_list: D020959:Polyethylene