title: Fluoro-Free navigated retrograde drilling of osteochondral lesions.
authors.affiliation: Department of Trauma Surgery, Hand Surgery and Reconstructive Surgery, Friedrich Schiller University, Jena, Erlanger Allee 101, 07740 Jena, Germany. marc.gras@med.uni-jena.de
authors.forename: Florian
authors.initials: F
authors.lastname: Gras
authors.forename: Ivan
authors.initials: I
authors.lastname: Marintschev
authors.forename: David M
authors.initials: DM
authors.lastname: Kahler
authors.forename: Kajetan
authors.initials: K
authors.lastname: Klos
authors.forename: Thomas
authors.initials: T
authors.lastname: Mückley
authors.forename: Gunther O
authors.initials: GO
authors.lastname: Hofmann