title: Failure of the Vari-Angle Hip Screw System: two cases.
authors.affiliation: Department of Orthopaedic Surgery, University of Toledo Medical Center, Toledo, OH, USA.
authors.forename: Philip Daniel
authors.initials: PD
authors.lastname: Nowicki
authors.forename: Gregory Minas
authors.initials: GM
authors.lastname: Georgiadis
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip; D001863:Bone Screws; D005260:Female; D005271:Femur Head Necrosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology; D005593:Fracture Fixation, Internal / Q000295:instrumentation* / Q000379:methods; D006620:Hip Fractures / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D011475:Prosthesis Failure; D011859:Radiography