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Geir Hallan's picture

Geir Hallan

Professor
  • E-mailGeir.Halland@uib.no
  • Visitor Address
    Haukeland Universitetssykehus Laboratoriebygget, 7. etg. Heis øst
  • Postal Address
    Postboks 7804
    5020 Bergen
Academic article
  • 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. 1-9.
  • 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.
  • 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.
  • 2019. Validation of chichewa short musculoskeletal function assessment (SMFA) questionnaire: A cross-sectional study. Malawi Medical Journal. 65-70.
  • 2019. The benefits of collaboration: the Nordic Arthroplasty register association. EFORT Open Reviews. 391-400.
  • 2019. The 2018 Otto Aufranc Award: How does genome-wide variation affect osteolysis risk after THA? Clinical Orthopaedics and Related Research. 297-309.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 2019. Impact of hip arthroplasty registers on orthopaedic practice and perspectives for the future. EFORT Open Reviews. 368-376.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 2017. Reverse hybrid total hip arthroplasty: Results from the Nordic Arthroplasty Register Association (NARA). Acta Orthopaedica. 248-254.
  • 2017. Early aseptic loosening of a mobile-bearing total knee replacement: A case-control study with retrieval analyses. Acta Orthopaedica. 77-83.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 2015. Increased risk of revision for infection in rheumatoid arthritis patients with total hip replacements. Acta Orthopaedica. 469-476.
  • 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.
  • 2015. Failure of aseptic revision total knee arthroplasties: 145 Revision failures from the Norwegian Arthroplasty Register, 1994-2011. Acta Orthopaedica. 48-57.
  • 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.
  • 2014. The results of 479 thumb carpometacarpal joint replacements reported in the Norwegian Arthroplasty Register. Journal of Hand Surgery, European Volume. 819-825.
  • 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.
  • 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.
  • 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.
  • 2013. Risk factors for infection after 46,113 intramedullary nail operations in low- and middle-income countries. World Journal of Surgery. 349-355.
  • 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.
  • 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.
  • 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).
  • 2012. Is there still a place for the cemented titanium femoral stem? 10,108 cases from the Norwegian Arthroplasty Register. Acta Orthopaedica. 1-6.
  • 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.
  • 2012. Head material influences survival of a cemented total hip prosthesis in the Norwegian Arthroplasty Register. Clinical Orthopaedics and Related Research. 3007-3013.
  • 2012. Coordinating retrieval and register studies improves postmarket surveillance. Clinical Orthopaedics and Related Research. 2995-3002.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 2007. Liner replacement at revision surgery for uncemented primary acetabular cups. Journal of Bone and Joint Surgery (JBJS). 591-594.
  • 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.
  • 2006. Palamed G compared with Palacos R with gentamicin in Charnley total hip replacement. Journal of Bone and Joint Surgery (JBJS). 1143-1148.
  • 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
  • 2019. Mekanismer for aseptisk løsning av sementert Spectron EF hoftestamme med Reflection kopp - en retrievalstudie.
  • 2018. Revision of infected total knee arthroplasty: Do surgical strategies matter?
  • 2018. Result of revision surgery for infected total knee arthroplasty. Do surgical strategies matter?
  • 2016. Can clinical radiographs be used for large scale monitoring of polyethylene wear?
  • 2014. Revisjon av total kneprotese uten patellakomponent med kun innsetting av patellakomponent.
  • 2014. Early aseptic loosening of a mobile-bearing total knee replacement – a retrieval analysis.
  • 2014. Early aseptic loosening of a mobile-bearing total knee replacement – A retrieval analysis.
  • 2014. Computernavigasjon vs konvensjonell teknikk ved kneprotesekirurgi. En prospektiv, randomisert, blindet RSA-studie.
  • 2013. Using the Norwegian arthroplasty register to generate a DNA biobank.
  • 2013. Comparison of wear particle exposure and tissue reactions in patients with cemented and uncemented titanium hip prostheses that failed due to osteolysis.
  • 2012. The Titan hip stem problem - a retrieval study.
  • 2011. Økt løsning av sementert Titan hofteprotese – En studie på uthentet materiale.
  • 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.
  • 2011. Et nasjonalt analysesenter for uthentetede ortopediske implantater.
  • 2011. Betydningen av sementerte koppers inklinasjonsvinkel på plastslitasje og koppmigrasjon. En prospektiv randomisert studie.
  • 2010. A randomized study of the Spectron EF and the Charnley flanged 40 cemented femoral components.
Feature article
  • 2019. Kontrollen av medisinske implantater kan bli bedre. Dagens medisin. 1 pages.
Letter to the editor
  • 2014. Re: a statistical analysis of ankle prosthesis from the Norwegian Arthroplasty Register. Archives of Orthopaedic and Trauma Surgery. 17-18.
  • 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
  • 2007. Wear, fixation, and revision of hip prostheses.
Abstract
  • 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
  • 2011. A randomized study on migration of the Spectron EF and the Charnley flanged 40 cemented femoral components using radiostereometric analysis at 2 years.
  • 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.

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