title: The need for an objective outcome measurement in spine surgery--the timed-up-and-go test.
authors.affiliation: Department of Neurosurgery, University Clinic Geneva, Rue Gabrielle-Perret-Gentil 4, 1211 Geneva, Switzerland.
authors.forename: Oliver P
authors.initials: OP
authors.lastname: Gautschi
authors.affiliation: Department of Neurosurgery, University Clinic Geneva, Rue Gabrielle-Perret-Gentil 4, 1211 Geneva, Switzerland.
authors.forename: Marco V
authors.initials: MV
authors.lastname: Corniola
authors.affiliation: Department of Neurosurgery, University Clinic Geneva, Rue Gabrielle-Perret-Gentil 4, 1211 Geneva, Switzerland.
authors.forename: Karl
authors.initials: K
authors.lastname: Schaller
authors.affiliation: Gippsland Medical Schoool, Monash University, Northways Road, Churchill 3842, Melbourne, Australia.
authors.forename: Nicolas R
authors.initials: NR
authors.lastname: Smoll
authors.affiliation: Department of Neurosurgery, Kantonsspital St.Gallen, Rorschacher Strasse 95, 9007 St.Gallen, Switzerland.
authors.forename: Martin N
authors.initials: MN
authors.lastname: Stienen
mesh_terms: D006801:Humans; D019637:Orthopedic Procedures; D017063:Outcome Assessment, Health Care / Q000379:methods*; D013131:Spine / Q000601:surgery*