title: [The current status of navigation systems].
authors.forename: C
authors.initials: C
authors.lastname: Krettek
authors.forename: F
authors.initials: F
authors.lastname: Gebhard
authors.forename: T
authors.initials: T
authors.lastname: Hüfner
mesh_terms: D005858:Germany; D006801:Humans; D019637:Orthopedic Procedures / Q000295:instrumentation*; D025321:Surgery, Computer-Assisted / Q000295:instrumentation*; D013673:Technology Assessment, Biomedical