Johan Kärrholm

• Do Cumulative Revision Rate and First-time Re-revision Rate Vary Between Short and Standard Femoral Stem Lengths? A Multinational Registry Study

  Karin Rilby, Mirthe H.W. van Veghel, Maziar Mohaddes, Liza N. van Steenbergen, Peter L. Lewis, Johan Kärrholm, Berend W. Schreurs, Gerjon Hannink
  Clinical Orthopaedics and Related Research - 2025
• VEGF-A, -C, -D, VEGFR1, -2, -3, PDGF-BB and FGF-2 join forces to induce vascular and lymphatic angiogenesis during bone healing of hip implants

  Jean Cassuto, Agnetha Folestad, Jan Göthlin, Henrik Malchau, Johan Kärrholm
  Bone Reports - 2025
• Skin and cluster markers underestimate knee flexion during controlled motions. Evaluation of 12 patients with knee arthroplasty using radiosterometric analysis as reference

  Anna Fändriks, Roland Zügner, Bita Shareghi, Johan Kärrholm, Roy Tranberg
  JOURNAL OF BIOMECHANICS - 2025
• Choice of Bearings Influences the Implant Survival of Total Hip Arthroplasty in Patients Who Have Osteoarthritis Aged 55 Years or More: Results of 158,044 Patients From the Nordic Arthroplasty Register Association From 2005 to 2017

  Oskari Pakarinen, Ville Ponkilainen, Claus Varnum, Alma B. Pedersen, Søren Overgaard, Johan Kärrholm, Ola Rolfson, Anne Marie Fenstad, Ove Furnes, Geir Hallan, Keijo Mäkelä, Antti Eskelinen
  Journal of Arthroplasty - 2025
• Guideline for RSA and CT-RSA implant migration measurements: an update of standardizations and recommendations

  Bart L. Kaptein, Bart Pijls, Lennard Koster, Johan Kärrholm, Maury Hull, Abby Niesen, Petra Heesterbeek, Stuart Callary, Matthew Teeter, Trevor Gascoyne, Stephan M. Röhrl, Gunnar Flivik, Laura Bragonzoni, Elise Laende, Olof Sandberg, L. Bogdan Solomon, Rob Nelissen, Maiken Stilling
  Acta Orthopaedica - 2024
• Gait pattern in patients treated with a total hip arthroplasty due to an acute displaced cervical neck fracture: a randomised comparison between 29 cases with a cemented femoral stem and 16 cases with an uncemented femoral stem

  Roland Zügner, Roy Tranberg, Bita Shareghi, Johan Kärrholm
  HIP International - 2024
• A prospective randomized study of Refobacin Bone Cement R versus Palacos<i> R</i> plus G FEMORAL COMPONENT MIGRATION AT TWO YEARS POSTOPERATIVELY

  Vasileios Angelomenos, Maziar Mohaddes, Johan Kärrholm, Henrik Malchau, Bita Shareghi, Raed Itayem
  BONE & JOINT JOURNAL - 2024
• Annual report 2023: The Swedish Arthroplasty Register

  Annette W-Dahl, Johan Kärrholm, Cecilia Rogmark, Jonatan Nåtman, Erik Bülow, Perna Ighani Arani, Maziar Mohaddes, Ola Rolfson
  2024
• Influence of immigrant background on the outcome of total hip arthroplasty: better outcome in 280 native patients in Bosnia and Herzegovina than in 449 immigrants living in Sweden

  Ferid Krupic, Manojlovic Slavko, Custovic Svemir, Fazlic Mirsad, Sadic Sahmir, Johan Kärrholm
  HIP INTERNATIONAL - 2024
• Increasing risk of revision due to infection after primary total hip arthroplasty: results from the Nordic Arthro- plasty Register Association

  H. Dale, A. M. Fenstad, G. Hallan, S. Overgaard, A. B. Pedersen, N. P. Hailer, Johan Kärrholm, Ola Rolfson, A. Eskelinen, K. T. Makela, O. Furnes
  Acta orthopaedica - 2023
• What is the Role of Stem Size and Offset in the Risk of Nonseptic Revision of the Exeter & REG; 150-mm Stem? A Study From the Swedish Arthroplasty Register

  Raed Itayem, Ola Rolfson, Maziar Mohaddes, Johan Kärrholm
  Clinical Orthopaedics and Related Research - 2023
• Computed tomography-based radiostereometric analysis in orthopedic research: practical guidelines

  Olof H. Sandberg, Johan Kärrholm, Henrik Olivecrona, Stephan M. Rohrl, Olof G. Skoldenberg, Cyrus Broden
  ACTA ORTHOPAEDICA - 2023
• Similar results after five years with the use of the Fitmore or the CLS femoral components A RANDOMIZED STUDY OF 35 PATIENTS

  Karin Rilby, Maziar Mohaddes, Johan Kärrholm
  Bone and Joint Open - 2023
• Fracture pattern and risk factors for reoperation after treatment of 156 periprosthetic fractures around an anatomic cemented hip stem

  Ali Sattar, Johan Kärrholm, Michael Möller, Georgios Chatziagorou
  Acta Orthopaedica - 2023
• No difference in clinical outcome but in RSA in total knee arthroplasty with the ATTUNE vs. the PFC Sigma: a randomized trial with 2-year follow-up

  Thom Keiller, Tuuli Saari, Bita Shareghi, Johan Kärrholm
  Acta Orthopaedica - 2023
• The importance of BMPs and TGF-βs for endochondral bone repair – A longitudinal study in hip arthroplasty patients

  Jean Cassuto, Agnetha Folestad, Jan Göthlin, Henrik Malchau, Johan Kärrholm
  Bone Reports - 2023
• Outcome of patients with osteoarthritis aged 90 to 101 years after cemented total hip arthroplasty: 1,385 patients from the Swedish Arthroplasty Register

  Mattias Schaufelberger, Ola Rolfson, Johan Kärrholm
  Acta Orthopaedica - 2023
• Årsrapport 2023: Svenska ledprotesregistret

  Annette W-Dahl, Johan Kärrholm, Cecilia Rogmark, Jonatan Nåtman, Erik Bülow, Perna Ighani Arani, Maziar Modaddes, Ola Rolfson
  2023
• Does choice of bearings influence the survival of cement-less total hip arthroplasty in patients aged 20-55 years? Comparison of 21,594 patients reported to the Nordic Arthroplasty Register Association dataset 2005-2017

  R. T. Mikkelsen, S. Overgaard, A. B. Pedersen, Johan Kärrholm, Ola Rolfson, A. M. Fenstad, O. Furnes, G. Hallan, K. Makela, A. Eskelinen, C. Varnum
  Acta Orthopaedica - 2023
• No difference in outcome or migration but greater loss of bone mineral density with the Collum Femoris Preserving stem compared with the Corail stem: a randomized controlled trial with five-year follow-up

  Karin Rilby, E. Naucler, Maziar Mohaddes, Johan Kärrholm
  Bone & Joint Journal - 2022
• Influence of implant variations on survival of the Lubinus SP II stem: evaluation of 76,530 hips in the Swedish Arthroplasty Register, 2000-2018.

  Raed Itayem, Ola Rolfson, Maziar Mohaddes, Johan Kärrholm
  Acta orthopaedica - 2022
• Similar outcome with a new anteverted or a straight standard stem: a randomized study of 72 total hip arthroplasties evaluated with clinical variables, radiostereometry, and DXA up to 2 years

  Karin Rilby, Maziar Mohaddes, E. Naucler, Johan Kärrholm
  Acta Orthopaedica - 2022
• Annual report 2022: The Swedish Arthroplasty Register

  Annette W-Dahl, Johan Kärrholm, Cecilia Rogmark, Maziar Mohaddes, Malin Carling, Martin Sundberg, Erik Bülow, Jonatan Nåtman, Hanne Krage Carlsen, Rikard Isaksson, Ola Rolfson
  2022
• Årsrapport 2022: Svenska Ledprotesregistret

  Annette W-Dahl, Johan Kärrholm, Cecilia Rogmark, Maziar Mohaddes, Malin Carling, Martin Sundberg, Erik Bülow, Jonatan Nåtman, Hanne Krage Carlsen, Rikard Isaksson, Ola Rolfson
  2022
• Similar risk of cancer in patients younger than 55 years with or without a total hip arthroplasty (THA): a population- based cohort study on 18,771 exposed to THA and 87,683 controls

  Y. D. Hailer, Johan Kärrholm, N. Eriksson, L. Holmberg, N. P. Hailer
  Acta Orthopaedica - 2022
• Total hip arthroplasties in the Dutch Arthroplasty Register (LROI) and the Nordic Arthroplasty Register Association (NARA): comparison of patient and procedure characteristics in 475,685 cases.

  Liza N Van Steenbergen, Keijo T Mäkelä, Johan Kärrholm, Ola Rolfson, Søren Overgaard, Ove Furnes, Alma B Pedersen, Antti Eskelinen, Geir Hallan, Berend W Schreurs, Rob G H H Nelissen
  Acta orthopaedica - 2021
• Uncemented or cemented stems in first-time revision total hip replacement? An observational study of 867 patients including assessment of femoral bone defect size.

  Yosef Tyson, Christer Hillman, Norbert Majenburg, Olof Sköldenberg, Ola Rolfson, Johan Kärrholm, Maziar Mohaddes, Nils P Hailer
  Acta orthopaedica - 2021
• Similar early mortality risk after cemented compared with cementless total hip arthroplasty for primary osteoarthritis: data from 188,606 surgeries in the Nordic Arthroplasty Register Association database

  Alma B Pedersen, Aurélie Mailhac, Anne Garland, Søren Overgaard, Ove Furnes, Stein Atle Lie, Anne Marie Fenstad, Cecilia Rogmark, Johan Kärrholm, Ola Rolfson, Jaason Haapakoski, Antti Eskelinen, Keijo T Mäkelä, Nils P Hailer
  Acta orthopaedica - 2021
• Pelvic tilt between supine and standing after total hip arthroplasty an RSA up to seven years after the operation

  Bita Shareghi, Maziar Mohaddes, Johan Kärrholm
  Journal of Orthopaedic Research - 2021
• Dislocation of hemiarthroplasty after hip fracture is common and the risk is increased with posterior approach: result from a national cohort of 25,678 individuals in the Swedish Hip Arthroplasty Register

  A. Jobory, Johan Kärrholm, S. Hansson, K. Akesson, C. Rogmark
  Acta Orthopaedica - 2021
• Annual report 2021: The Swedish Arthroplasty Register

  Annette W-Dahl, Johan Kärrholm, Cecilia Rogmark, Emma Nauclér, Jonatan Nåtman, Erik Bülow, Maziar Mohaddes, Martin Sundberg, Ola Rolfson
  2021
• The risk of revision following total hip arthroplasty in patients with inflammatory bowel disease, a registry based study

  Meghan M. Moran, Peter Wessman, Ola Rolfson, Daniel D. Bohl, Johan Kärrholm, Ali Keshavarzian, D. Rick Sumner
  PLoS ONE - 2021
• Årsrapport 2021 Svenska Ledprotesregistret

  Anette W-Dahl, Johan Kärrholm, Cecilia Rogmark, Emma Nauclér, Jonatan Nåtman, Erik Bülow, Maziar Mohaddes, Martin Sundberg, Ola Rolfson
  2021
• Exchange of Modular Components Improves Success of Debridement, Antibiotics, and Implant Retention An Observational Study of 575 Patients with Infection After Primary Total Hip Arthroplasty

  Karin Svensson, Ola Rolfson, Emma Nauclér, Stergios Lazarinis, Olof Sköldenberg, Jörg Schilcher, Per-Erik Johanson, Maziar Mohaddes, Johan Kärrholm
  JBJS Open Access - 2020
• Wear measurements with use of radiostereometric analysis in total hip arthroplasty with obscured femoral head

  Per-Erik Johanson, Bita Shareghi, M. Eriksson, Johan Kärrholm
  Journal of Orthopaedic Research - 2020
• No difference in gait pattern between a short collum femoris-preserving and a conventional stem: 44 randomised total hip arthroplasty patients stem evaluated after 2 years.

  Roland Zügner, Roy Tranberg, Goran Puretic, Johan Kärrholm, Maziar Modaddes
  Hip international : the journal of clinical and experimental research on hip pathology and therapy - 2020
• Global diversity in bearings in primary THA.

  Georgios Tsikandylakis, Soren Overgaard, Luigi Zagra, Johan Kärrholm
  EFORT open reviews - 2020
• Is there a reduction in risk of revision when 36-mm heads instead of 32 mm are used in total hip arthroplasty for patients with proximal femur fractures?: A matched analysis of 5,030 patients with a median of 2.5 years’ follow-up between 2006 and 2016 in the Nordic Arthroplasty Register Association

  Georgios Tsikandylakis, Johan Kärrholm, G. Hallan, O. Furnes, A. Eskelinen, K. Mäkelä, A. B. Pedersen, S. Overgaard, Maziar Mohaddes
  Acta Orthopaedica - 2020
• Validity and Responsiveness of Forearm Strength Measurements in the Evaluation of Distal Radioulnar Joint Implant Arthroplasty

  Peter Axelsson, Christer Sollerman, Johan Kärrholm
  Journal of Hand Surgery - 2020
• Risk for hip fracture before and after total knee replacement in Sweden

  Cecilie Hongslo Vala, Johan Kärrholm, J. A. Kanis, H. Johansson, S. Sten, Valter Sundh, M. Karlsson, Mattias Lorentzon, Dan Mellström
  Osteoporosis International - 2020
• How do EQ-5D-3L and EQ-5D-5L compare in a Swedish total hip replacement population?

  Ted Eneqvist, Szilard Nemes, Johan Kärrholm, K. Burstrom, Ola Rolfson
  Acta Orthopaedica - 2020
• No generally increased risk of cancer after total hip arthroplasty performed due to osteoarthritis

  N. P. Hailer, A. Garland, M. Gordon, Johan Kärrholm, O. Skoldenberg, N. Eriksson, H. Garmo, L. Holmberg
  International Journal of Cancer - 2020
• Concerted actions by MMPs, ADAMTS and serine proteases during remodeling of the cartilage callus into bone during osseointegration of hip implants.

  Jean Cassuto, Agnetha Folestad, Jan Göthlin, Henrik Malchau, Johan Kärrholm
  Bone reports - 2020
• More hip complications after total hip arthroplasty than after hemi­arthroplasty as hip fracture treatment: analysis of 5,815 matched pairs in the Swedish Hip Arthroplasty Register

  Susanne Hansson, Erik Bülow, Anne Garland, Johan Kärrholm, Cecilia Rogmark
  Acta Orthopaedica - 2020
• Effect on Risk of Revision of Primary Total Hip Arthroplasty Due to Osteoarthritis: A Matched Population-Based Study Using the Nordic Arthroplasty Register Association Database.

  R Kreipke, Cecilia Rogmark, AB Pedersen, Johan Kärrholm, G Hallan, LI Havelin, K Mäkelä, S Overgaard
  Journal of Bone and Joint Surgery. American volume - 2019
• Uncemented or cemented revision stems? Analysis of 2,296 first-time hip revision arthroplasties performed due to aseptic loosening, reported to the Swedish Hip Arthroplasty Register

  Y. Tyson, Ola Rolfson, Johan Kärrholm, N. P. Hailer, Maziar Mohaddes
  Acta Orthopaedica - 2019
• Implant survival and patient-reported outcome following total hip arthroplasty in patients 30 years or younger: a matched cohort study of 1,008 patients in the Swedish Hip Arthroplasty Register

  Maziar Mohaddes, E. Naucler, Johan Kärrholm, Henrik Malchau, D. Odin, Ola Rolfson
  Acta Orthopaedica - 2019
• Uncemented cups with and without screw holes in primary THA: a Swedish Hip Arthroplasty Register study with 22,725 hips

  V. Otten, S. Mukka, K. Nilsson, S. Crnalic, Johan Kärrholm
  Acta Orthopaedica - 2019
• Postoperative Thromboprophylaxis With New Oral Anticoagulants is Superior to LMWH in Hip Arthroplasty Surgery: Findings from the Swedish Registry

  P. Kasina, Alexander Wall, Lasse J. Lapidus, Ola Rolfson, Johan Kärrholm, Szilard Nemes, Bengt I. Eriksson, Maziar Mohaddes
  Clinical orthopaedics and related research - 2019
• Similar clinical results and early subsidence between the Collum Femoris Preserving and the Corail stem: a randomized radiostereometric study of 77 hips with 2 years’ follow-up

  Lisbeth Klein, Goran Puretic, Maziar Mohaddes, Johan Kärrholm
  Acta Orthopaedica - 2019

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