title: Rapidly destructive coxopathy after subchondral insufficiency fracture of the femoral head.
abstract: Rapidly destructive coxopathy (RDC) is a rare disorder, and its pathophysiology is unknown. Here, we report a case of RDC evaluated by roentgenography and magnetic resonance imaging, from the onset of hip pain without changes on roentgenograms, to the terminal stage with collapse of the femoral head. Our serial radiological findings clearly illustrate the entire process of RDC, especially the initial stage. Subchondral insufficiency fracture of the femoral head seems to be an important preliminary event in the development of RDC.
authors.affiliation: Department of Orthopaedic Surgery, Mie University Faculty of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan.
authors.forename: Rui
authors.initials: R
authors.lastname: Niimi
authors.forename: Masahiro
authors.initials: M
authors.lastname: Hasegawa
authors.forename: Akihiro
authors.initials: A
authors.lastname: Sudo
authors.forename: Atsumasa
authors.initials: A
authors.lastname: Uchida
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D005270:Femur Head / Q000293:injuries*; D006620:Hip Fractures / Q000150:complications* / Q000175:diagnosis; D006621:Hip Joint; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D010024:Osteoporosis / Q000150:complications; D016896:Treatment Outcome