R. Steffen

The accuracy of free-hand cup positioning - a CT based measurement of cup placement in 105 total hip arthroplasties

Guido Saxler, A. Marx, D Vandevelde et al. · International Orthopaedics · 2004 · 195 citations · Full text

Free-hand Cup, Surgery, Total Hip Arthroplasties +5

Verification of the position of pedicle screws in lumbar spinal fusion

R. Haaker, Ulrich Eickhoff, E. Schopphoff et al. · European Spine Journal · 1997 · 33 citations · Full text

Lumbar Spine, Biomechanics, Spinal Fusion +7

Prospective Comparative Study of Intradiscal High-dose and Low-dose Collagenase Versus Chymopapain

A. Hedtmann, R. Steffen, Jürgen Krämer · Spine · 1987 · 29 citations

Lumbar Spine, Intradiscal High-dose, Osteoarthritis +11

Protection of pancreatic and biliary anastomosis after partial duodenopancreatectomy by external drainage.

H. Keck, R. Steffen, P. Neuhaus · PubMed · 1992 · 19 citations

Partial Duodenopancreatectomy, Efferent Limb, Pancreatic Fluid Collection +11

The correlation between magnetic resonance imaging and the operative and clinical findings after lumbar microdiscectomy

R. H. Wittenberg, A. Lütke, D. Longwitz et al. · International Orthopaedics · 1998 · 18 citations · Full text

Lumbar Spine, Medical Imaging, Spinal Fusion +9