Ragnar Johnsson

Outcomes of endoscopic surgery compared with open surgery for carpal tunnel syndrome among employed patients: randomised controlled trial

Isam Atroshi, Gert-Uno Larsson, Ewald Ornstein et al. · BMJ · 2006 · 228 citations · Full text

Randomized Radiostereometric Study Comparing Osteogenic Protein-1 (BMP-7) and Autograft Bone in Human Noninstrumented Posterolateral Lumbar Fusion

Ragnar Johnsson, Björn Strömqvist, Per Aspenberg · Spine · 2002 · 202 citations

Manipulation Does Not Alter the Position of the Sacroiliac Joint

Tycho Tullberg, Stefan Blomberg, Björn Branth et al. · Spine · 1998 · 150 citations

Early Complications After One Hundred and Forty-four Consecutive Hip Revisions with Impacted Morselized Allograft Bone and Cement

Ewald Ornstein, Isam Atroshi, Herbert Franzén et al. · Journal of Bone and Joint Surgery · 2002 · 148 citations

X-Stop Versus Decompressive Surgery for Lumbar Neurogenic Intermittent Claudication

Björn Strömqvist, S. Van Den Berg, Paul Gerdhem et al. · Spine · 2013 · 133 citations