Stephan M. Röhrl
- Head of CIRRO; Professor, MD
- +47 22 22 09 87
Stephan Maximillian Röhrl is a consultant at the Department of Orthopaedic Surgery at Oslo University Hospital Ullevål. Stephan is a specialist in general surgery and orthopaedic surgery and his clinical practice is focusing on reconstructive surgery of the hip and the knee. During his basic orthopaedic training in Umeå, Sweden, he started to work with radiostereometry and DEXA. After his PhD thesis on "wear and fixation of the acetabular component" in 2004 he was research fellow in 2005 at the University of Western Australia in Perth and came to Oslo in 2006. Since, he is leading CIRRO and focusing on research of joints with and without implants. In 2009 he became head of the Norwegian Society for Hip and Knee Surgery.
Stephan is a former German and European cup champion in Judo and has served as physician for the national judo team in Sweden and Norway.
Projects:
- Unipolar or bipolar hemiarthroplasty for the treatment of displaced femoral neck fractures. A prospective randomised controlled trial of RSA (Radiostereometric Analyses) measurements of acetabular wear.
- Bone remodeling and migration after insertion of femoral stems with differen surface coatings. Clinical and experimental studies
- Wear and different materials in hip arthroplasty
- Reverse hybrid total hip replacement: Wear, fixation and bone remodelling
- THR in patients under 20 years
- Learning curve, muscle sparing approach in primary total hip replacement
- A new method to measure ligament balancing . How balanced are total knee arthroplasties?
- Patellar resurfacing in total knee arthroplasty. A prospective, randomised and double blind study.
- Custom positioning guides technique versus conventional technique in knee arthroplasty
- Can the combination of information from different alignment axis improve rotational alignment of the femoral component in total knee arthroplasty?
- Computer navigation and conventional technique in total knee replacement
- Sacroiliac Joint Fusion in Patients with Severe Pelvic Girdle Pain after Pregnancy and Trauma
CV:
Present position | Consultant surgeon at the department of trauma and orthopaedics, Oslo University Hospital, Oslo, Norway Head of CIRRO: Center for Implant and Radiostereometric Research Oslo, Norway Head of the Norwegian Society for Hip and Knee Surgery (NSHKS) |
Personal information | Place of birth: Regensburg, Germany Date of birth: 03.02.1966 Nationality: German Civil status: married, 2 children Address: Agathe Grøndahlsgate 46, 0478 Oslo, Norway Telephone: +47 94424677 Email: s.m.rohrl@medisin.uio.no |
Education | 1972-1986 Goethe Gymnasium Regensburg, Germany 1983-1984 Cottage Grove high school USA 1986-1987 Military service Germany 1987-1994 Medical school Ludwig Maximilian Universität, München, Germany |
Research Qualifications |
1996 Ph.D, Ludwig Maximilian University Germany 2003 Licentiat, Umeå University Sweden 2004 Ph.D, Umeå University Sweden 2005 Research fellow, University of WA, Perth Australia 2007 Head of CIRRO (Implant RSA research) Norway |
Medical Qualifications |
1994 M.D. Ludwig Maximilian University Munich, Germany 1997 Specialist in Sports medicine Germany 1998 Chiropractor Germany 2003 Orthopaedic consultant Sweden |
Professional experience | 1995-1997 Postgrad. internship , University Regensburg, Germany 1997-2002 Speciality training in orthopaedic surgery University hospital of Northern Sweden, Sweden Consultant positions 2003-2004 University of Northern Sweden, Umeå Sweden 2005 Fremantle University hospital WA Australia 2006 - now Oslo University hospital, Ullevål Oslo, Norway |
Teaching | 2000-2004 Clinical student courses at Umeå university, Sweden 2005 Courses for students at the university of WA, Australia |
International reviewer |
Acta Scandinavica |
Honours |
1998-2001 Team doctor for premiar league icehockey, Sweden |
Publications 2024
No benefit of the trochanteric stabilizing plate on loss of fracture reduction in AO/OTA 31-A2 trochanteric fractures
Bone Jt Open, 5 (1), 37-45
DOI 10.1302/2633-1462.51.BJO-2023-0082.R1, PubMed 38240179
Guideline for RSA and CT-RSA implant migration measurements: an update of standardizations and recommendations
Acta Orthop, 95, 256-267
DOI 10.2340/17453674.2024.40709, PubMed 38819193
Osseointegration of minimally invasive sacroiliac joint fixation implants-A human retrieval study
J Orthop Res, 42 (8), 1820-1830
DOI 10.1002/jor.25820, PubMed 38433320
The effect of minimally invasive sacroiliac joint fusion compared to sham operation: a double-blind randomized placebo-controlled trial
EClinicalMedicine, 68, 102438
DOI 10.1016/j.eclinm.2024.102438, PubMed 38328752
Publications 2023
A novel instrument for ligament balancing: a biomechanical study in human cadaveric knees
J Exp Orthop, 10 (1), 83
DOI 10.1186/s40634-023-00643-7, PubMed 37584812
CT-based migration analysis is more precise than radiostereometric analysis for tibial implants: a phantom study on a porcine cadaver
Acta Orthop, 94, 207-214
DOI 10.2340/17453674.2023.12306, PubMed 37114404
CT-based radiostereometric analysis for assessing midfoot kinematics: precision compared with marker-based radiostereometry
Acta Orthop, 94, 366-372
DOI 10.2340/17453674.2023.16905, PubMed 37493528
Effects of patient-specific positioning guides (PSPGs) vs. conventional instrumentation on patient-reported outcome in total knee arthroplasty: secondary analysis of a randomized controlled trial after 5 years
Acta Orthop, 94, 354-359
DOI 10.2340/17453674.2023.15335, PubMed 37493231
Computed tomography-based radiostereometric analysis in orthopedic research: practical guidelines
Acta Orthop, 94, 373-378
DOI 10.2340/17453674.2023.15337, PubMed 37493579
Dose reduction does not impact the precision of CT-based RSA in tibial implants: a diagnostic accuracy study on precision in a porcine cadaver
Acta Orthop, 94, 550-544
DOI 10.2340/17453674.2023.24022, PubMed 37909103
Publications 2022
A randomized controlled trial comparing two modern total wrist arthroplasties : improved function with stable implants, but high complication rates in non-rheumatoid wrists at two years
Bone Joint J, 104-B (10), 1132-1141
DOI 10.1302/0301-620X.104B10.BJJ-2022-0201.R2, PubMed 36177637
Does temporary bridge plate fixation preserve joint motion after an unstable Lisfranc injury?
Foot Ankle Surg, 29 (2), 151-157
DOI 10.1016/j.fas.2022.12.007, PubMed 36529589
Comparison of the in-vivo kinematics of three different knee prosthesis designs during a step-up movement
Clin Biomech (Bristol, Avon), 100, 105824
DOI 10.1016/j.clinbiomech.2022.105824, PubMed 36435077
Risk factors for revision surgery due to dislocation within 1 year after 111,711 primary total hip arthroplasties from 2005 to 2019: a study from the Norwegian Arthroplasty Register
Acta Orthop, 93, 593-601
DOI 10.2340/17453674.2022.3474, PubMed 35770369
Publications 2021
Stable glenoid component of reverse total shoulder arthroplasty at 2 years as measured with model-based radiostereometric analysis (RSA)
Acta Orthop, 92 (6), 644-650
DOI 10.1080/17453674.2021.1943932, PubMed 34196600
Antibiotic-Loaded Bone Cement in Prevention of Periprosthetic Joint Infections in Primary Total Knee Arthroplasty: A Register-based Multicentre Randomised Controlled Non-inferiority Trial (ALBA trial)
BMJ Open, 11 (1), e041096
DOI 10.1136/bmjopen-2020-041096, PubMed 33509845
Early migration of a medially stabilized total knee arthroplasty : a radiostereometric analysis study up to two years
Bone Jt Open, 2 (9), 737-744
DOI 10.1302/2633-1462.29.BJO-2021-0115.R1, PubMed 34493056
Publications 2020
Hip disorders in children and adolescents - examination and treatment of sequelae
Tidsskr. Nor. Laegeforen., 140 (17), 1772-1775
[Hip disorders in children and adolescents – assessment and treatment of sequelae]
Tidsskr Nor Laegeforen, 140 (17)
DOI 10.4045/tidsskr.20.0274, PubMed 33231392
"Great balls on fire:" known algorithm with a new instrument?
Acta Orthop, 91 (6), 621-623
DOI 10.1080/17453674.2020.1840029, PubMed 33143497
Results of a randomized controlled trial with five-year radiostereometric analysis results of vitamin E-infused highly crosslinked versus moderately crosslinked polyethylene in reverse total hip arthroplasty
Bone Joint J, 102-B (12), 1646-1653
DOI 10.1302/0301-620X.102B12.BJJ-2020-0721.R1, PubMed 33249906
Decreased Survival of Medial Pivot Designs Compared with Cruciate-retaining Designs in TKA Without Patellar Resurfacing
Clin Orthop Relat Res, 478 (6), 1207-1218
DOI 10.1097/CORR.0000000000001120, PubMed 31977446
Publications 2019
Component Placement in Direct Lateral vs Minimally Invasive Anterior Approach in Total Hip Arthroplasty: Radiographic Outcomes From a Prospective Randomized Controlled Trial
J Arthroplasty, 34 (8), 1718-1722
DOI 10.1016/j.arth.2019.04.003, PubMed 31053468
Does radiopaque cement conceal periprosthetic bone loss around femoral stems?
Hip Int, 30 (6), 731-738
DOI 10.1177/1120700019863352, PubMed 31359800
Outcome of 881 total hip arthroplasties in 747 patients 21 years or younger: data from the Nordic Arthroplasty Register Association (NARA) 1995-2016
Acta Orthop, 90 (4), 331-337
DOI 10.1080/17453674.2019.1615263, PubMed 31088343
Displaced Acetabular Fracture in Elderly Patients: Is Acute Arthroplasty an Effective Option?
Z Orthop Unfall, 157 (6), 676-683
DOI 10.1055/a-0842-2320, PubMed 31071728
Publications 2018
No detrimental effect of ligament balancing on functional outcome after total knee arthroplasty: a prospective cohort study on 129 mechanically aligned knees with 3 years' follow-up
Acta Orthop, 89 (5), 548-554
DOI 10.1080/17453674.2018.1485283, PubMed 29883259
Higher cartilage wear in unipolar than bipolar hemiarthroplasties of the hip at 2 years: A randomized controlled radiostereometric study in 19 fit elderly patients with femoral neck fractures
Acta Orthop, 89 (5), 503-508
DOI 10.1080/17453674.2018.1475899, PubMed 29790397
Model-based RSA is suitable for clinical trials on the glenoid component of reverse total shoulder arthroplasty
J Orthop Res, 36 (12), 3299-3307
DOI 10.1002/jor.24111, PubMed 30035319
High precision and accuracy of model-based RSA for analysis of wrist arthroplasty
J Orthop Res, 36 (11), 3053-3063
DOI 10.1002/jor.24063, PubMed 29873422
Low wear rate at 6-year follow-up of vitamin E-infused cross-linked polyethylene: a randomised trial using 32- and 36-mm heads
Hip Int, 29 (4), 355-362
DOI 10.1177/1120700018798790, PubMed 30227721
Computer-Assisted Compared with Conventional Total Knee Replacement: A Multicenter Parallel-Group Randomized Controlled Trial
J Bone Joint Surg Am, 100 (15), 1265-1274
DOI 10.2106/JBJS.17.01338, PubMed 30063588
A 2-year RSA study of the Vanguard CR total knee system: A randomized controlled trial comparing patient-specific positioning guides with conventional technique
Acta Orthop, 89 (4), 418-424
DOI 10.1080/17453674.2018.1470866, PubMed 29739264
Publications 2017
Minimal effect of patella eversion on ligament balancing in cruciate-retaining total knee arthroplasty
Arch Orthop Trauma Surg, 137 (3), 387-392
DOI 10.1007/s00402-017-2625-y, PubMed 28168644
Movement of the sacroiliac joint during the Active Straight Leg Raise test in patients with long-lasting severe sacroiliac joint pain
Clin Biomech (Bristol, Avon), 47, 40-45
DOI 10.1016/j.clinbiomech.2017.05.014, PubMed 28582642
No radiological and clinical advantages with patient-specific positioning guides in total knee replacement
Acta Orthop, 89 (1), 89-94
DOI 10.1080/17453674.2017.1393732, PubMed 29161930
Publications 2016
Similar migration in computer-assisted and conventional total knee arthroplasty
Acta Orthop, 88 (2), 166-172
DOI 10.1080/17453674.2016.1267835, PubMed 27996349
Implant survival and radiographic outcome of total hip replacement in patients less than 20 years old
Acta Orthop, 87 (5), 479-84
DOI 10.1080/17453674.2016.1212180, PubMed 27435903
Steady state acetabular cartilage wear after bipolar hemiarthroplasty: a case series of 10 patients with radiostereometric analysis
Hip Int, 27 (2), 193-197
DOI 10.5301/hipint.5000437, PubMed 27911454
Patient-specific positioning guides do not consistently achieve the planned implant position in UKA
Knee Surg Sports Traumatol Arthrosc, 25 (3), 752-758
DOI 10.1007/s00167-016-4268-x, PubMed 27520882
Publications 2015
Low wear, high stability - promises of success in a moderately cross-linked cup?
Hip Int, 25 (3), 199-203
DOI 10.5301/hipint.5000230, PubMed 25952922
No medium-term advantage of electrochemical deposition of hydroxyapatite in cementless femoral stems. 5-year RSA and DXA results from a randomized controlled trial
Acta Orthop, 87 (1), 42-7
DOI 10.3109/17453674.2015.1084768, PubMed 26364953
Triple taper stem design shows promising fixation and bone remodelling characteristics: radiostereometric analysis in a randomised controlled trial
Bone Joint J, 97-B (6), 755-61
DOI 10.1302/0301-620X.97B6.34736, PubMed 26033054
E-vitamin infused highly cross-linked polyethylene: RSA results from a randomised controlled trial using 32 mm and 36 mm ceramic heads
Hip Int, 25 (1), 50-5
DOI 10.5301/hipint.5000195, PubMed 25633755
Stability of Uncemented Cups - Long-Term Effect of Screws, Pegs and HA Coating: A 14-Year RSA Follow-Up of Total Hip Arthroplasty
J Arthroplasty, 31 (1), 156-61
DOI 10.1016/j.arth.2015.07.012, PubMed 26260783
Better survival of hybrid total knee arthroplasty compared to cemented arthroplasty
Acta Orthop, 86 (6), 714-20
DOI 10.3109/17453674.2015.1073539, PubMed 26179889
Identification of femoral head center of bipolar hemiarthroplasy in radiostereometric analysis with elementary geometrical shape models
J Biomech, 49 (3), 469-73
DOI 10.1016/j.jbiomech.2015.11.054, PubMed 26705109
Publications 2014
Intraoperative ligament laxity influences functional outcome 1 year after total knee arthroplasty
Knee Surg Sports Traumatol Arthrosc, 23 (6), 1684-92
DOI 10.1007/s00167-014-3108-0, PubMed 24917538
Radiosteriometric analysis of movement in the sacroiliac joint during a single-leg stance in patients with long-lasting pelvic girdle pain
Clin Biomech (Bristol, Avon), 29 (4), 406-11
DOI 10.1016/j.clinbiomech.2014.02.002, PubMed 24602677
Comparison of planned and achieved implant position in total knee arthroplasty with patient-specific positioning guides
Acta Orthop, 86 (2), 201-7
DOI 10.3109/17453674.2014.985154, PubMed 25386738
Comparison of two different Radiostereometric analysis (RSA) systems with markerless elementary geometrical shape modeling for the measurement of stem migration
Clin Biomech (Bristol, Avon), 29 (8), 950-5
DOI 10.1016/j.clinbiomech.2014.06.007, PubMed 25175935
Publications 2013
More than 50% reduction of wear in polyethylene liners with alumina heads compared to cobalt-chrome heads in hip replacements: a 10-year follow-up with radiostereometry in 43 hips
Acta Orthop, 84 (4), 360-4
DOI 10.3109/17453674.2013.810516, PubMed 23795579
Publications 2012
A new method to measure ligament balancing in total knee arthroplasty: laxity measurements in 100 knees
Arch Orthop Trauma Surg, 132 (8), 1173-81
DOI 10.1007/s00402-012-1536-1, PubMed 22581351
Center index method-an alternative for wear measurements with radiostereometry (RSA)
J Orthop Res, 31 (3), 480-4
DOI 10.1002/jor.22241, PubMed 23070723
Precision and accuracy measurement of radiostereometric analysis applied to movement of the sacroiliac joint
Clin Orthop Relat Res, 470 (11), 3187-94
DOI 10.1007/s11999-012-2413-5, PubMed 22695864
Reverse hybrid and cemented hip replacement compared using radiostereometry and dual-energy X-ray absorptiometry: 43 hips followed for 2 years in a prospective trial
Acta Orthop, 83 (6), 592-8
DOI 10.3109/17453674.2012.742393, PubMed 23116437
No adverse effects of submelt-annealed highly crosslinked polyethylene in cemented cups: an RSA study of 8 patients 10 yaers after surgery
Acta Orthop, 83 (2), 148-52
DOI 10.3109/17453674.2011.652889, PubMed 22248172
10-year results of a new low-monomer cement: follow-up of a randomized RSA study
Acta Orthop, 83 (6), 604-8
DOI 10.3109/17453674.2012.742392, PubMed 23116438
Publications 2011
Less wear with aluminium-oxide heads than cobalt-chrome heads with ultra high molecular weight cemented polyethylene cups: a ten-year follow-up with radiostereometry
Int Orthop, 36 (3), 485-90
DOI 10.1007/s00264-011-1334-3, PubMed 21870101
Is reverse hybrid hip replacement the solution?
Acta Orthop, 82 (6), 639-45
DOI 10.3109/17453674.2011.623569, PubMed 21999624
Segment choice and cup stability influence wear measurements using radiostereometric analysis: a radiostereometric study comparing wear measured by markers in the polyethylene with markers in the periacetabular bone
Clin Biomech (Bristol, Avon), 27 (5), 511-4
DOI 10.1016/j.clinbiomech.2011.11.009, PubMed 22197589
Publications 2010
A prospective randomized study comparing electrochemically deposited hydroxyapatite and plasma-sprayed hydroxyapatite on titanium stems
Acta Orthop, 82 (1), 13-9
DOI 10.3109/17453674.2010.548027, PubMed 21189109
Publications 2007
Periprosthetic changes in bone mineral density in 5 stem designs 5 years after cemented total hip arthroplasty. No relation to stem migration
J Arthroplasty, 22 (5), 689-91
DOI 10.1016/j.arth.2006.05.035, PubMed 17689776
Very low wear of non-remelted highly cross-linked polyethylene cups: an RSA study lasting up to 6 years
Acta Orthop, 78 (6), 739-45
DOI 10.1080/17453670710014509, PubMed 18236179
Publications 2006
Migration pattern of a short femoral neck preserving stem
Clin Orthop Relat Res, 448, 73-8
DOI 10.1097/01.blo.0000224000.87517.4c, PubMed 16826099
Porous-coated cups fixed with screws: a 12-year clinical and radiostereometric follow-up study of 50 hips
Acta Orthop, 77 (3), 393-401
DOI 10.1080/17453670610046316, PubMed 16819677
A comparison of conventional versus locking plates in intraarticular calcaneus fractures: a biomechanical study in human cadavers
Clin Biomech (Bristol, Avon), 22 (1), 100-5
DOI 10.1016/j.clinbiomech.2006.07.008, PubMed 17007974
Publications 2005
RSA wear measurements with or without markers in total hip arthroplasty
J Biomech, 39 (9), 1641-50
DOI 10.1016/j.jbiomech.2005.05.004, PubMed 15990104
In vivo wear and migration of highly cross-linked polyethylene cups a radiostereometry analysis study
J Arthroplasty, 20 (4), 409-13
DOI 10.1016/j.arth.2004.09.040, PubMed 16124954
Publications 2004
Effect of augmented cup fixation on stability, wear, and osteolysis: a 5-year follow-up of total hip arthroplasty with RSA
J Arthroplasty, 19 (8), 962-71
DOI 10.1016/j.arth.2004.06.024, PubMed 15586331
Publications 2003
Increase in early polyethylene wear after sterilization with ethylene oxide: radiostereometric analyses of 201 total hips
Acta Orthop Scand, 74 (5), 531-41
DOI 10.1080/00016470310017910, PubMed 14620972