title: Displaced longitudinal stress fracture of the patella: a case report.
authors.affiliation: Department of Orthopaedic Surgery and Trauma, Tampere University Hospital, Teiskontie 35, FIN-33521, Tampere, Finland.
authors.forename: Petri J
authors.initials: PJ
authors.lastname: Sillanpää
authors.forename: Antti
authors.initials: A
authors.lastname: Paakkala
authors.forename: Timo
authors.initials: T
authors.lastname: Paakkala
authors.forename: Heikki
authors.initials: H
authors.lastname: Mäenpää
authors.forename: Jarmo
authors.initials: J
authors.lastname: Toivanen