title: Fracture of the fabella: a rare injury in knee trauma.
abstract: We present a case of a 21-year-old woman sustaining a traumatic [fabellar] fracture following a motor vehicle accident. The fabellar fracture was confirmed on plain films, which prompted further evaluation of the knee with ultrasound and magnetic resonance imaging to evaluate other possible associated injuries. Fracture of the fabella is a rare condition. Clinically, patients present with posterolateral knee pain, edema, and limited knee extension. Occasionally these symptoms may be very subtle, delaying the correct diagnosis and patient management.
authors.affiliation: Division of Radiology, Department of Internal Medicine, Ribeirão Preto School of Medicine, University of São Paulo, 14030-000 Ribeirao Preto, SP, Brazil.
authors.forename: Andre Rodrigues Façanha
authors.initials: AR
authors.lastname: Barreto
authors.forename: Francisco Abaete
authors.initials: FA
authors.lastname: Chagas-Neto
authors.forename: Michel Daoud
authors.initials: MD
authors.lastname: Crema
authors.forename: Mario Muller
authors.initials: MM
authors.lastname: Lorenzato
authors.forename: Mariana Tiemi Teixeira
authors.initials: MT
authors.lastname: Kobayashi
authors.forename: Carlos Ribeiro
authors.initials: CR
authors.lastname: Monteiro
authors.forename: Marcello Henrique
authors.initials: MH
authors.lastname: Nogueira-Barbosa