title: Reply to the Letter to the Editor of M. Avellanal concerning: "Cost-effectiveness of conservative versus surgical treatment strategies of lumbar spinal stenosis in the Swiss setting: analysis of the prospective multicenter Lumbar Stenosis Outcome Study (LSOS)" by A. Aichmair et al. (Eur Spine J; 2016. doi:10.1007/s00586-016-4937-y).
authors.affiliation: Spine Division, Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland. alexander.aichmair@balgrist.ch.
authors.forename: Alexander
authors.initials: A
authors.lastname: Aichmair
authors.affiliation: Spine Division, Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008, Zurich, Switzerland.
authors.forename: Mazda
authors.initials: M
authors.lastname: Farshad
mesh_terms: D003251:Constriction, Pathologic; D003362:Cost-Benefit Analysis; D006801:Humans; D017063:Outcome Assessment, Health Care; D011446:Prospective Studies; D013130:Spinal Stenosis