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University of Bergen
Geir Hallan's picture

Geir Hallan

Department of Clinical Medicine
  • E-mailGeir.Halland@uib.no
  • Visitor Address
    Haukeland Universitetssykehus Laboratoriebygget, 7. etg. Heis øst
    5009 Bergen
  • Postal Address
    Postboks 7804
    5020 Bergen
Academic article
  • Show author(s) (2023). Increasing risk of revision due to infection after primary total hip arthroplasty: results from the Nordic Arthroplasty Register Association. Acta Orthopaedica. 307-315.
  • Show author(s) (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. Acta Orthopaedica. 266-273.
  • Show author(s) (2022). The unmet need for treatment of children with musculoskeletal impairment in Malawi. BMC Pediatrics. 1-7.
  • Show author(s) (2022). Similarly low-blood metal ion levels at 10-years follow-up of total hip arthroplasties with Oxinium, CoCrMo, and stainless steel femoral heads. Data from a randomized clinical trial. Journal of Biomedical Materials Research. Part B - Applied biomaterials. 1-8.
  • Show author(s) (2022). 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 Orthopaedica. 593-601.
  • Show author(s) (2022). Polycrystalline diamond coating on orthopedic implants: Realization and role of surface topology and chemistry in adsorption of proteins and cell proliferation. ACS Applied Materials & Interfaces. 44933-44946.
  • Show author(s) (2022). Kaplan-Meier and Cox Regression Are Preferable for the Analysis of Time to Revision of Joint Arthroplasty: Thirty-One Years of Follow-up for Cemented and Uncemented THAs Inserted from 1987 to 2000 in the Norwegian Arthroplasty Register. JBJS Open Access. 1-8.
  • Show author(s) (2022). Inflammatory tissue reactions around aseptically loose cemented hip prostheses: A retrieval study of the Spectron EF stem with Reflection All‐Poly acetabular cup. Journal of Biomedical Materials Research. Part B - Applied biomaterials. 1624-1636.
  • Show author(s) (2022). Incidence and risk factors of intraoperative periprosthetic femoral fractures during primary total hip arthroplasty: 218,423 cases reported to the Norwegian Arthroplasty Register between 1987 and 2020. Acta Orthopaedica. 405-412.
  • Show author(s) (2021). Prevalence, causes and impact of musculoskeletal impairment in Malawi: A national cluster randomized survey. PLOS ONE. 1-15.
  • Show author(s) (2021). Metallionenivåer i blod fra pasienter med metall-mot-metall-hofteprotese. Tidsskrift for Den norske legeforening. 31-36.
  • Show author(s) (2021). How Does Implant Survivorship Vary with Different Corail Femoral Stem Variants? Results of 51,212 Cases with Up to 30 Years Of Follow-up from the Norwegian Arthroplasty Register. Clinical Orthopaedics and Related Research. 2169-2180.
  • Show author(s) (2021). Cost utility analysis of intramedullary nailing and skeletal traction treatment for patients with femoral shaft fractures in Malawi. Acta Orthopaedica. 436-442.
  • Show author(s) (2021). Basic Body Awareness Therapy versus standard care in hip osteoarthritis. A randomized controlled trial. Physiotherapy Research International. 12 pages.
  • Show author(s) (2020). What is the frequency of fracture of ceramic components in THA? Results from the Norwegian arthroplasty register from 1997 to 2017. Clinical Orthopaedics and Related Research. 1254-1261.
  • Show author(s) (2020). 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. Acta Orthopaedica. 1-7.
  • Show author(s) (2020). Outcome at 1 year in patients with femoral shaft fractures treated with intramedullary nailing or skeletal traction in a low-income country: a prospective observational study of 187 patients in Malawi. Acta Orthopaedica. 1-8.
  • Show author(s) (2020). Operative approach influences functional outcome after DAIR for infected total hip arthroplasty. The Bone & Joint Journal. 1662-1669.
  • Show author(s) (2020). Operating room ventilation and the risk of revision due to infection after total hip arthroplasty: assessment of validated data in the Norwegian Arthroplasty Register. Journal of Hospital Infection.
  • Show author(s) (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? Acta Orthopaedica. 401-407.
  • Show author(s) (2020). Increasing but levelling out risk of revision due to infection after total hip arthroplasty: a study on 108,854 primary THAs in the Norwegian Arthroplasty Register from 2005 to 2019. Acta Orthopaedica. 1-7.
  • Show author(s) (2020). Hoftelidelser hos barn og unge- utredning og behandling av senfølger. Tidsskrift for Den norske legeforening. 9 pages.
  • Show author(s) (2019). Varying but reduced use of postoperative mobilization restrictions after primary total hip arthroplasty in Nordic countries: a questionnaire-based study. Acta Orthopaedica. 143-147.
  • Show author(s) (2019). Validation of chichewa short musculoskeletal function assessment (SMFA) questionnaire: A cross-sectional study. Malawi Medical Journal. 65-70.
  • Show author(s) (2019). The benefits of collaboration: the Nordic Arthroplasty register association. EFORT Open Reviews. 391-400.
  • Show author(s) (2019). The 2018 Otto Aufranc Award: How does genome-wide variation affect osteolysis risk after THA? Clinical Orthopaedics and Related Research. 297-309.
  • Show author(s) (2019). Reduced revision risk for dual-mobility cup in total hip replacement due to hip fracture: A matched-pair analysis of 9,040 cdases from the Nordic Arthroplasty Register Association (NARA). Journal of Bone and Joint Surgery. American volume. 1278-1285.
  • Show author(s) (2019). Perioperative, short, and long-term mortality related to fixation in primary total hip arthroplasty: a study of 79,557 patients in the Norwegian Arthroplasty Register. Acta Orthopaedica. 1-8.
  • Show author(s) (2019). Outcome of revision surgery for infection after total knee arthroplasty: Results of 3 surgical strategies. Journal of bone and joint surgery reviews (JBJS Reviews). 1-10.
  • Show author(s) (2019). Operating room ventilation-Validation of reported data on 108 067 primary total hip arthroplasties in the Norwegian Arthroplasty Register. Journal of Evaluation In Clinical Practice. 1-8.
  • Show author(s) (2019). Is there a weekend effect after hip fracture surgery? A study of 74,410 hip fractures reported to the Norwegian Hip Fracture Register. Acta Orthopaedica. 63-68.
  • Show author(s) (2019). Impact of hip arthroplasty registers on orthopaedic practice and perspectives for the future. EFORT Open Reviews. 368-376.
  • Show author(s) (2019). Fixation, sex and age: highest risk of revision for uncemented stems in elderly women- data from 66,995 primary total hip arthroplasties in the Norwegian arthroplasty register. Acta Orthopaedica. 1-10.
  • Show author(s) (2019). Erratum to: The 2018 Otto Aufranc Award: How does genome-wide variation affect osteolysis risk after THA? Clinical Orthopaedics and Related Research. 668-668.
  • Show author(s) (2019). Dual Mobility Cups: 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. Journal of Bone and Joint Surgery. American volume. 169-176.
  • Show author(s) (2018). The rise in road traffic injuries in Lilongwe, Malawi: A snapshot of the growing epidemic of trauma in low income countries. International Journal of Surgery Open. 55-60.
  • Show author(s) (2018). No increase in survival for 36-mm versus 32-mm femoral heads in metal-on-polyethylene THA: A registry study. . Clinical Orthopaedics and Related Research. 2367-2378.
  • Show author(s) (2018). Computer-assisted compared with conventional total knee replacement: A Multicenter Parallel-Group Randomized Controlled Trial. Journal of Bone and Joint Surgery. American volume. 1265-1274.
  • Show author(s) (2018). A survivorship study of 838 total elbow replacements: a report from the Norwegian Arthroplasty Register 1994-2016. Journal of shoulder and elbow surgery. 260-269.
  • Show author(s) (2017). Validation and reliability of the Chichewa translation of the EQ-5D quality of life questionnaire in adults with orthopaedic injuries in Malawi. Malawi Medical Journal. 84-88.
  • Show author(s) (2017). Reverse hybrid total hip arthroplasty: Results from the Nordic Arthroplasty Register Association (NARA). Acta Orthopaedica. 248-254.
  • Show author(s) (2017). Early aseptic loosening of a mobile-bearing total knee replacement: A case-control study with retrieval analyses. Acta Orthopaedica. 77-83.
  • Show author(s) (2017). Does hydroxyapatite coating of uncemented cups improve long-term survival? An analysis of 28,605 primary total hip arthroplasty procedures from the Nordic Arthroplasty Register Association (NARA). Osteoarthritis and Cartilage. 1980-1987.
  • Show author(s) (2016). Similar migration in computer-assisted and conventional total knee arthroplasty: A multicenter, parallel-group, randomized controlled trial involving 54 patients. Acta Orthopaedica. 166-172.
  • Show author(s) (2016). Outcomes of unicompartmental knee arthroplasty after aseptic revision to total knee arthroplasty: a comparative study of 768 TKAs and 578 UKAs revised to TKAs from the norwegian arthroplasty register (1994 to 2011). Journal of Bone and Joint Surgery. American volume. 431-440.
  • Show author(s) (2016). Is it feasible to merge data from national shoulder registries? A new collaboration within the Nordic Arthroplasty Register Association. Journal of shoulder and elbow surgery. e369-e377.
  • Show author(s) (2015). Wear particles and ions from cemented and uncemented titanium-based hip prostheses - A histological and chemical analysis of retrieval material. Journal of Biomedical Materials Research. Part B - Applied biomaterials. 709-717.
  • Show author(s) (2015). Secondary patella resurfacing in painful non-resurfaced total knee arthroplasties: A study of survival and clinical outcome from the Norwegian Arthroplasty Register (1994–2011). International Orthopaedics. 8 pages.
  • Show author(s) (2015). Oxinium modular femoral heads do not reduce polyethylene wear in cemented total hip arthroplasty at five years: A randomised trial of 120 hips using radiostereometric analysis. The Bone & Joint Journal. 1463-1469.
  • Show author(s) (2015). Increased risk of revision for infection in rheumatoid arthritis patients with total hip replacements. Acta Orthopaedica. 469-476.
  • Show author(s) (2015). Hydroxyapatite coating does not improve uncemented stem survival after total hip arthroplasty!: An analysis of 116,069 THAs in the Nordic Arthroplasty Register Association (NARA) database. Acta Orthopaedica. 18-25.
  • Show author(s) (2015). Failure of aseptic revision total knee arthroplasties: 145 Revision failures from the Norwegian Arthroplasty Register, 1994-2011. Acta Orthopaedica. 48-57.
  • Show author(s) (2015). Bacterial and hematological findings in infected total hip arthroplasties in Norway. Assessment of 278 revisions due to infection in the Norwegian Arthroplasty Register. The Open Orthopaedics Journal. 445-449.
  • Show author(s) (2014). The results of 479 thumb carpometacarpal joint replacements reported in the Norwegian Arthroplasty Register. Journal of Hand Surgery (European Volume). 819-825.
  • Show author(s) (2014). Increasing Resistance of Coagulase-Negative Staphylococci in Total Hip Arthroplasty Infections: 278 THA-Revisions due to Infection Reported to the Norwegian Arthroplasty Register from 1993 to 2007. Advances in Orthopedics. 1-7.
  • Show author(s) (2014). Functional outcome and alignment in computer-assisted and conventionally operated total knee replacements: a multicentre parallel-group randomised controlled trial. The Bone & Joint Journal. 609-618.
  • Show author(s) (2013). Survival rates and causes of revision in cemented primary total knee replacement: A report from the Norwegian Arthroplasty Register 1994-2009. The Bone & Joint Journal. 636-642.
  • Show author(s) (2013). Risk factors for infection after 46,113 intramedullary nail operations in low- and middle-income countries. World Journal of Surgery. 349-355.
  • Show author(s) (2013). Complications after intramedullary nailing of femoral fractures in a low-income country : A prospective study of follow-up, HIV infection, and microbial infection rates after IM nailing of 141 femoral fractures at a central hospital in Malawi. Acta Orthopaedica. 460-467.
  • Show author(s) (2012). The influence of acetabular inclination angle on the penetration of polyethylene and migration of the acetabular component: A prospective, radiostereometric study on cemented acetabular components. Journal of Bone and Joint Surgery (JBJS). 302-307.
  • Show author(s) (2012). More re-operations after uncemented than cemented hemiarthroplasty used in the treatment of displaced fractures of the femoral neck: an observational study of 11,116 hemiarthroplasties from a national register. Journal of Bone and Joint Surgery (JBJS).
  • Show author(s) (2012). Is there still a place for the cemented titanium femoral stem? 10,108 cases from the Norwegian Arthroplasty Register. Acta Orthopaedica. 1-6.
  • Show author(s) (2012). Increasing risk of prosthetic joint infection after total hip arthroplasty 2,778 revisions due to infection after 432,168 primary THAs in the Nordic Arthroplasty Register Association (NARA). Acta Orthopaedica. 449-458.
  • Show author(s) (2012). Head material influences survival of a cemented total hip prosthesis in the Norwegian Arthroplasty Register. Clinical Orthopaedics and Related Research. 3007-3013.
  • Show author(s) (2012). Coordinating retrieval and register studies improves postmarket surveillance. Clinical Orthopaedics and Related Research. 2995-3002.
  • Show author(s) (2011). Wear and migration of highly cross-linked and conventional cemented polyethylene cups with cobalt chrome or Oxinium femoral heads: A randomized radiostereometric study of 150 patients. Journal of Orthopaedic Research. 1222-1229.
  • Show author(s) (2011). Surgical procedures in the treatment of 784 infected THAs reported to the Norwegian Arthroplasty Register Best survival with 2-stage exchange revision, but also good results with debridement and retention of the fixed implant. Acta Orthopaedica. 530-537.
  • Show author(s) (2011). Low infection rates after 34,361 intramedullary nail operations in 55 low- and middle-income countries Validation of the Surgical Implant Generation Network (SIGN) Online Surgical Database. Acta Orthopaedica. 737-743.
  • Show author(s) (2011). Is reverse hybrid hip replacement the solution? 3,963 primary hip replacements with cemented cup and uncemented stem, from the Norwegian Arthroplasty Register. Acta Orthopaedica. 639-645.
  • Show author(s) (2011). A randomized study on migration of the Spectron EF and the Charnley flanged 40 cemented femoral components using radiostereometric analysis at 2 years. Acta Orthopaedica. 538-544.
  • Show author(s) (2010). Risk of Revision for Infection in Primary Total Hip and Knee Arthroplasty in Patients With Rheumatoid Arthritis Compared With Osteoarthritis: A Prospective, Population-Based Study on 108,786 Hip and Knee Joint Arthroplasties From the Norwegian Arthroplasty Register. Arthritis Care and Research. 473-479.
  • Show author(s) (2010). Metal-backed acetabular components with conventional polyethylene A REVIEW OF 9113 PRIMARY COMPONENTS WITH A FOLLOW-UP OF 20 YEARS. Journal of Bone and Joint Surgery (JBJS). 196-201.
  • Show author(s) (2009). Increasing risk of revision due to deep infection after hip arthroplasty A study on 97,344 primary total hip replacements in the Norwegian Arthroplasty Register from 1987 to 2007. Acta Orthopaedica. 639-645.
  • Show author(s) (2007). Medium and long-term performance of 11 516 uncemented primary femoral stems from the Norwegian arthroplasty register. Journal of Bone and Joint Surgery (JBJS). 1574-1580.
  • Show author(s) (2007). Liner replacement at revision surgery for uncemented primary acetabular cups. Journal of Bone and Joint Surgery (JBJS). 591-594.
  • Show author(s) (2007). Isolated acetabular liner exchange compared With Complete acetabular Component revision in revision of primary uncemented acetabular components: a study of 1649 revisions from the Norwegian arthroplasty register. Journal of Bone and Joint Surgery (JBJS). 591-594.
  • Show author(s) (2006). Palamed G compared with Palacos R with gentamicin in Charnley total hip replacement. Journal of Bone and Joint Surgery (JBJS). 1143-1148.
  • Show author(s) (2006). High wear rates and extensive osteolysis in 3 types of uncemented total hip arthroplasty - A review of the PCA, the Harris Galante and the profile/tri-lock plus arthroplasties with a minimum of 12 years median follow-up in 96 hips. Acta Orthopaedica. 575-584.
Academic lecture
  • Show author(s) (2022). SIMULTAN SEKVENSIELL BILATERAL KNEPROTESE SAMMENLIKNET MED SEKVENSIELLE OG UNILATERALE PROSEDYRER I NASJONALT REGISTER.
  • Show author(s) (2021). Polyethylene wear in total hip arthroplasty; comparing Oxinium and CoCr femoral heads using radiostereometry with 10 years follow-up.
  • Show author(s) (2020). Metallionenivåer i blod etter 10 år med hofteproteser med ulike hodematerialer.
  • Show author(s) (2019). Mekanismer for aseptisk løsning av sementert Spectron EF hoftestamme med Reflection kopp - en retrievalstudie.
  • Show author(s) (2018). Revision of infected total knee arthroplasty: Do surgical strategies matter?
  • Show author(s) (2018). Result of revision surgery for infected total knee arthroplasty. Do surgical strategies matter?
  • Show author(s) (2016). Can clinical radiographs be used for large scale monitoring of polyethylene wear?
  • Show author(s) (2014). Revisjon av total kneprotese uten patellakomponent med kun innsetting av patellakomponent.
  • Show author(s) (2014). Early aseptic loosening of a mobile-bearing total knee replacement – a retrieval analysis.
  • Show author(s) (2014). Early aseptic loosening of a mobile-bearing total knee replacement – A retrieval analysis.
  • Show author(s) (2014). Computernavigasjon vs konvensjonell teknikk ved kneprotesekirurgi. En prospektiv, randomisert, blindet RSA-studie.
  • Show author(s) (2013). Using the Norwegian arthroplasty register to generate a DNA biobank.
  • Show author(s) (2013). Comparison of wear particle exposure and tissue reactions in patients with cemented and uncemented titanium hip prostheses that failed due to osteolysis.
  • Show author(s) (2012). The Titan hip stem problem - a retrieval study.
  • Show author(s) (2011). Økt løsning av sementert Titan hofteprotese – En studie på uthentet materiale.
  • Show author(s) (2011). Implantatoverlevelse og revisjonsårsaker ved primær ”mobile bearing”, ”fixed modular bearing” og ”fixed non-modular bearing” totalprotese i kne. En rapport fra Nasjonalt register for leddproteser.
  • Show author(s) (2011). Et nasjonalt analysesenter for uthentetede ortopediske implantater.
  • Show author(s) (2011). Betydningen av sementerte koppers inklinasjonsvinkel på plastslitasje og koppmigrasjon. En prospektiv randomisert studie.
  • Show author(s) (2010). A randomized study of the Spectron EF and the Charnley flanged 40 cemented femoral components.
Feature article
  • Show author(s) (2019). Kontrollen av medisinske implantater kan bli bedre. Dagens medisin. 1 pages.
Letter to the editor
  • Show author(s) (2014). Re: a statistical analysis of ankle prosthesis from the Norwegian Arthroplasty Register. Archives of Orthopaedic and Trauma Surgery. 17-18.
  • Show author(s) (2013). Authors' reply Cobb correspondence re: J-E. Gjertsen, S. A. Lie, T. Vinje, et al. More re-operations after uncemented than cemented hemiarthroplasty used in the treatment of displaced fractures of the femoral neck: An observational study of 11 116 hemiarthroplasties from a national register. J Bone Joint Surg [Br] 2012;94-B:1113-1119. The Bone & Joint Journal. 862.
Doctoral dissertation
  • Show author(s) (2007). Wear, fixation, and revision of hip prostheses.
Abstract
  • Show author(s) (2014). COMPARISON OF WEAR PARTICLE EXPOSURE AND TISSUE REACTIONS IN PATIENTS WITH CEMENTED AND UNCEMENTED TITANIUM HIP PROSTHESES THAT FAILED DUE TO OSTEOLYSIS. Bone & Joint Journal Orthopaedic Proceedings Supplement. 41-41.
Poster
  • Show author(s) (2022). Polyethylene Wear In Total Hip Arthroplasty; Comparing Oxinium And CoCr Femoral Heads Using Radiostereometry With 10 Years Follow-Up.
  • Show author(s) (2020). Patient Education and Basic Body Awareness Therapy versus Patient Education only in people with hip Osteoarthritis. A randomized controlled trial.
  • Show author(s) (2011). A randomized study on migration of the Spectron EF and the Charnley flanged 40 cemented femoral components using radiostereometric analysis at 2 years.
  • Show author(s) (2010). Wear of highly cross-linked and conventional ultra-high molecular weight semented polyethylene cups with oxidized zirconium (Oxinium) or Cobalt Chrome femoral heads. A randomized study of 150 hips using radiostereometric analysis.
Academic literature review
  • Show author(s) (2021). 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. 1-8.

More information in national current research information system (CRIStin)