Sigurd Berven

The Impact of Positive Sagittal Balance in Adult Spinal Deformity

Steven D. Glassman, Keith H. Bridwell, John R. Dimar et al. · Spine · 2005 · 1.9K citations

Correlation of Radiographic Parameters and Clinical Symptoms in Adult Scoliosis

Steven D. Glassman, Sigurd Berven, Keith H. Bridwell et al. · Spine · 2005 · 1.2K citations

Surgical versus Nonsurgical Therapy for Lumbar Spinal Stenosis

James N. Weinstein, Tor D. Tosteson, Jon D. Lurie et al. · New England Journal of Medicine · 2008 · 1.2K citations · Full text

Minimum clinically important difference in lumbar spine surgery patients: a choice of methods using the Oswestry Disability Index, Medical Outcomes Study questionnaire Short Form 36, and Pain Scales

Anne G. Copay, Steven D. Glassman, Brian R. Subach et al. · The Spine Journal · 2008 · 1.2K citations

Oswestry Disability Index, Lumbar Spine, Short Form 36 +11

Surgical Versus Nonoperative Treatment for Lumbar Spinal Stenosis Four-Year Results of the Spine Patient Outcomes Research Trial

James N. Weinstein, Tor D. Tosteson, Jon D. Lurie et al. · Spine · 2010 · 569 citations