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Acta Orthopaedica
Volume 82, 2011 - Issue 1
Open access
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Research Article
Would loss to follow-up bias the outcome evaluation of patients operated for degenerative disorders of the lumbar spine?
A study of responding and non-responding cohort participants from a clinical spine surgery registry
Tore K Solberg Department of Neurosurgery, University Hospital of Northern Norway, Tromsø; Norwegian Registry for Spine Surgery (NORspine), Northern Norway Regional Health Authority, TromsøCorrespondence[email protected]
, Andreas Sørlie Department of Neurosurgery, University Hospital of Northern Norway, Tromsø; Norwegian Registry for Spine Surgery (NORspine), Northern Norway Regional Health Authority, Tromsø
, Kristin Sjaavik Department of Neurosurgery, University Hospital of Northern Norway, Tromsø; Norwegian Registry for Spine Surgery (NORspine), Northern Norway Regional Health Authority, Tromsø
, Øystein P Nygaard Norwegian Registry for Spine Surgery (NORspine), Northern Norway Regional Health Authority, Tromsø; National Centre for Spinal Disorders and Department of Neurosurgery, University Hospital of St. Olav, Trondheim
& Tor Ingebrigtsen Department of Neurosurgery, University Hospital of Northern Norway, Tromsø; Institute of Clinical Medicine, University of Tromsø, Norway
Pages 56-63
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Received 13 Jan 2010, Accepted 21 Sep 2010, Published online: 29 Dec 2010
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