Frede Jon Frihagen

Image of Frede Jon Frihagen
Norwegian version of this page
Username
Visiting address OUS Ullevål Kirkeveien 166 0450 Oslo
Postal address OUS, Ullevål Postboks 4956 Nydalen 0424 Oslo

Publications

  • Frihagen, Frede Jon; Madsen, Jan Erik; Sundfeldt, Mikael; Flugsrud, Gunnar B; Andreassen, Joakim S.; Andersen, Mette Renate & Andreassen, Geir (2020). Taylor spatial frame or reamed intramedullary nailing for closed fractures of the tibial shaft: A randomized controlled trial. Journal of Orthopaedic Trauma.  ISSN 0890-5339.  34(11), s 612- 619 . doi: 10.1097/BOT.0000000000001802
  • Ingstad, Frida; Solberg, Lene Bergendal; Nordsletten, Lars; Thorsby, Per Medbøe; Hestnes, Ingvild & Frihagen, Frede Jon (2020). Vitamin D status and complications, readmissions, and mortality after hip fracture. Osteoporosis International.  ISSN 0937-941X. . doi: 10.1007/s00198-020-05739-9 Full text in Research Archive.
  • Ræder, Lise Benedikte Wendt; Figved, Wender; Madsen, Jan Erik; Frihagen, Frede Jon; Jacobsen, Silje Berild & Andersen, Mette Renate (2020). Better outcome for suture button compared with single syndesmotic screw for syndesmosis injury: Five-year results of a randomized controlled trial. The Bone & Joint Journal.  ISSN 2049-4394.  102-B(2), s 212- 219 . doi: 10.1302/0301-620X.102B2.BJJ-2019-0692.R2
  • Ræder, Lise Benedikte Wendt; Stake, Ingrid Kvello; Madsen, Jan Erik; Frihagen, Frede Jon; Jacobsen, Silje Berild; Andersen, Mette Renate & Figved, Paul Wender (2020). Randomized trial comparing suture button with single 3.5 mm syndesmotic screw for ankle syndesmosis injury: similar results at 2 years. Acta Orthopaedica.  ISSN 1745-3674.  91 . doi: 10.1080/17453674.2020.1818175 Full text in Research Archive.
  • Svenøy, Stian; Watne, Leiv; Hestnes, Ingvild; WESTBERG, MARIANNE; Madsen, Jan Erik & Frihagen, Frede Jon (2020). Results after introduction of a hip fracture care pathway: comparison with usual care. Acta Orthopaedica.  ISSN 1745-3674.  91(2), s 139- 145 . doi: 10.1080/17453674.2019.1710804
  • Andersen, Mette Renate; Diep, Lien My; Frihagen, Jon Frede; Hellund, Johan Castberg; Madsen, Jan Erik & Figved, Paul Wender (2019). Importance of Syndesmotic Reduction on Clinical Outcome After Syndesmosis Injuries. Journal of Orthopaedic Trauma.  ISSN 0890-5339.  33(8), s 397- 403 . doi: 10.1097/BOT.0000000000001485
  • Bartels, Stefan; Gjertsen, Jan-Erik; Frihagen, Frede Jon; Rogmark, Cecilia & Utvåg, Stein-Erik (2019). Low bone density and high morbidity in patients between 55 and 70 years with displaced femoral neck fractures: A case-control study of 50 patients vs 150 normal controls. BMC Musculoskeletal Disorders.  ISSN 1471-2474.  20, s 1- 8 . doi: 10.1186/s12891-019-2732-8 Full text in Research Archive.
  • Bhandari, Mohit; Einhorn, Thomas A.; Guy-Att, Gordon; Schemitsch, Emil H.; Zura, Robert D.; Sprague, Sheila; Frihagen, Frede Jon; Guerra-Farfán, Ernesto; Klein-Lugtenbelt, Ydo V.; Poolman, Rudolf W.; Rangan, Amar; Bzovsky, Sofia; Heels-Ansdell, Diane; Thabane, Lehana; Walter, Stephen D. & Devereaux, Philip J. (2019). Total hip arthroplasty or hemiarthroplasty for hip fracture. New England Journal of Medicine.  ISSN 0028-4793.  381(23), s 2199- 2208 . doi: 10.1056/NEJMoa1906190
  • Borgen, Tove Tveitan; Bjørnerem, Åshild; Solberg, Lene Bergendal; Andreasen, Camilla; Brunborg, Cathrine; Stenbro, May-Britt; Hübschle, Lars Michael; Figved, Wender; Apalset, Ellen Margrete; Gjertsen, Jan Erik; Basso, Trude; Lund, Ida; Hansen, Ann Kristin; Stutzer, Jens-Meinhard; Dahl, Cecilie; Nordsletten, Lars; Frihagen, Frede Jon & Eriksen, Erik Fink (2019). Determinants of trabecular bone score and prevalent vertebral fractures in women with fragility fractures: a cross-sectional sub-study of NoFRACT. Osteoporosis International.  ISSN 0937-941X.  31, s 505- 514 . doi: 10.1007/s00198-019-05215-z Full text in Research Archive.
  • Borgen, Tove Tveitan; Bjørnerem, Åshild; Solberg, Lene Bergendal; Andreasen, Camilla; Brunborg, Cathrine; Stenbro, May-Britt; Hübschle, Lars Michael; Froholdt, Anne; Figved, Wender; Apalset, Ellen M; Gjertsen, Jan-Erik; Basso, Trude; Lund, Ida; Hansen, Ann Kristin; Stutzer, Jens-Meinhard; Dahl, Cecilie; Omsland, Tone Kristin; Nordsletten, Lars; Frihagen, Frede Jon & Eriksen, Erik Fink (2019). High prevalence of vertebral fractures and low trabecular bone score in patients with fragility fractures: A cross-sectional sub-study of NoFRACT. Bone.  ISSN 8756-3282.  122, s 14- 21 . doi: 10.1016/j.bone.2019.02.008 Full text in Research Archive.
  • Borgen, Tove Tveitan; Bjørnerem, Åshild; Solberg, Lene Bergendal; Andreasen, Camilla; Brunborg, Cathrine; Stenbro, May-Britt; Hübschle, Lars Michael; Froholdt, Anne; Figved, Wender; Apalset, Ellen Margrete; Gjertsen, Jan-Erik; Basso, Trude; Lund, Ida; Hansen, Ann Kristin; Stutzer, Jens-Meinhard; Omsland, Tone Kristin; Nordsletten, Lars; Frihagen, Frede Jon & Eriksen, Erik Fink (2019). Post-Fracture Risk Assessment: Target The Centrally Sited Fractures First! A Substudy of NoFRACT. Journal of Bone and Mineral Research.  ISSN 0884-0431.  34(11), s 2036- 2044 . doi: 10.1002/jbmr.3827 Full text in Research Archive.
  • Dolatowski, Filip Celestyn; Frihagen, Frede Jon; Bartels, Stefan; Opland, Vidar; Saltyte Benth, Jurate; Talsnes, Ove; Hoelsbrekken, Sigurd Erik & Utvåg, Stein-Erik (2019). Screw Fixation Versus Hemiarthroplasty for Nondisplaced Femoral Neck Fractures in Elderly Patients - A Multicenter Randomized Controlled Trial. Journal of bone and joint surgery reviews (JBJS Reviews).  ISSN 2329-9185.  101(2), s 136- 144 . doi: 10.2106/JBJS.18.00316
  • Figved, Wender; Myrstad, Marius; Saltvedt, Ingvild; Finjarn, Merete; Odland, Liv Marie Flaten & Frihagen, Frede Jon (2019). Team approach: Multidisciplinary treatment of hip fractures in elderly patients: Orthogeriatric care. Journal of bone and joint surgery reviews (JBJS Reviews).  ISSN 2329-9185.  7(6), s 1- 9 . doi: 10.2106/JBJS.RVW.18.00136 Full text in Research Archive. Show summary
  • Frisvoll, Cassandra; Clarke-Jenssen, John; Madsen, Jan Erik; Flugsrud, Gunnar B; Frihagen, Frede Jon; Andreassen, Geir & Bere, Tone Tufte (2019). Long-term outcomes after high-energy open tibial fractures: Is a salvaged limb superior to prosthesis in terms of physical function and quality of life?. European Journal of Orthopaedic Surgery & Traumatology (EJOST).  ISSN 1633-8065.  29(4), s 899- 906 . doi: 10.1007/s00590-019-02382-x
  • Pihl, Elsa; Kristoffersen, Målfrid Holen; Rosenlund, Anne-Mari; Laszlo, Sofia; Berglöf, Mida; Ribom, Eva; Eriksson, Karl; Frihagen, Frede Jon; Mattila, Ville M.; Schilcher, Jörg; Eklund, Martin; Snellman, Greta; Skorpil, Mikael; Sköldenberg, Olof; Hedbeck, Carl Johan & Jonsson, Kenneth (2019). The proximal hamstring avulsion clinical trial (PHACT) - a randomised controlled non-inferiority trial of operative versus non-operative treatment of proximal hamstrings avulsions: Study protocol. BMJ Open.  ISSN 2044-6055.  9:e031607(9), s 1- 5 . doi: 10.1136/bmjopen-2019-031607
  • Ranhoff, Anette Hylen; Saltvedt, Ingvild; Frihagen, Frede Jon; Ræder, Johan; Maini, Sameer & Sletvold, Olav (2019). Interdisciplinary care of hip fractures: Orthogeriatric models, alternative models, interdisciplinary teamwork. Baillière's Best Practice & Research : Clinical Rheumatology.  ISSN 1521-6942.  33(2), s 205- 226 . doi: 10.1016/j.berh.2019.03.015 Full text in Research Archive.
  • ANDERSEN, METTE RENATE; Frihagen, Frede Jon; Hellund, Johan Castberg; Madsen, Jan Erik & Figved, Wender (2018). Randomized trial comparing suture button with single syndesmotic screw for syndesmosis injury. Journal of Bone and Joint Surgery. American volume.  ISSN 0021-9355.  100(1), s 2- 12 . doi: 10.2106/JBJS.16.01011
  • Andreasen, Camilla; Solberg, Lene Bergendal; Basso, Trude; Borgen, Tove Tveitan; Dahl, Cecilie; Wisløff, Torbjørn; Hagen, Gunhild; Apalset, Ellen M; Gjertsen, Jan-Erik; Figved, Wender; Hübschle, Lars Michael; Stutzer, Jens-Meinhard; Elvenes, Jan; Joakimsen, Ragnar Martin; Syversen, Unni; Eriksen, Erik Fink; Nordsletten, Lars; Frihagen, Frede Jon; Omsland, Tone Kristin & Bjørnerem, Åshild (2018). Effect of a Fracture Liaison Service on the Rate of Subsequent Fracture Among Patients With a Fragility Fracture in the Norwegian Capture the Fracture Initiative (NoFRACT): A Trial Protocol. JAMA Network Open.  ISSN 2574-3805.  1(8) . doi: 10.1001/jamanetworkopen.2018.5701 Full text in Research Archive.
  • Figved, Wender; Svenøy, Stian; Röhrl, Stephan Maximillian; Dahl, Jon; Nordsletten, Lars & Frihagen, Frede Jon (2018). 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 Orthopaedica.  ISSN 1745-3674.  89(5), s 503- 508 . doi: 10.1080/17453674.2018.1475899 Full text in Research Archive.
  • Halaas, Nathalie Bodd; Blennow, Kaj; Idland, Ane-Victoria; Wyller, Torgeir Bruun; Ræder, Johan; Frihagen, Frede Jon; Staff, Anne Cathrine; Zetterberg, Henrik & Watne, Leiv (2018). Neurofilament light in serum and cerebrospinal fluid of hip fracture patients with delirium. Dementia and Geriatric Cognitive Disorders.  ISSN 1420-8008.  46(5-6), s 346- 357 . doi: 10.1159/000494754 Full text in Research Archive.
  • Hassel, Bjørnar; Mariussen, Espen; Idland, Ane-Victoria; Dahl, Gry Torsæter; Ræder, Johan; Frihagen, Frede Jon; Berg, Jens Petter; Chaudhry, Farrukh Abbas; Wyller, Torgeir Bruun & Watne, Leiv (2018). CSF sodium at toxic levels precedes delirium in hip fracture patients. Neurotoxicology.  ISSN 0161-813X.  69(December), s 11- 16 . doi: 10.1016/j.neuro.2018.08.010
  • Torbergsen, Anne Cathrine; Watne, Leiv; Frihagen, Frede Jon; Wyller, Torgeir Bruun & Mowe, Morten (2018). Effects of nutritional intervention upon bone turnover in elderly hip fracture patients. Randomized controlled trial. Clinical Nutrition ESPEN.  ISSN 2405-4577. . doi: 10.1016/j.clnesp.2017.11.012
  • Bartels, Stefan; Gjertsen, Jan-Erik; Frihagen, Frede Jon; Rogmark, Cecilia & Utvåg, Stein-Erik (2017). High failure rate after internal fixation and beneficial outcome after arthroplasty in treatment of displaced femoral neck fractures in patients between 55 and 70 years. An observational study of 2,713 patients reported to the Norwegian Hip Fracture Register. Acta Orthopaedica.  ISSN 1745-3674.  89(1), s 53- 58 . doi: 10.1080/17453674.2017.1376514 Full text in Research Archive.
  • Ernst, Gernot Walter; Watne, Leiv Otto; Frihagen, Frede Jon; Wyller, Torgeir Bruun; Dominik, Andreas & Rostrup, Morten (2017). Decreases in heart rate variability are associated with postoperative complications in hip fracture patients. PLOS ONE.  ISSN 1932-6203.  12:e0180423(7), s 1- 14 . doi: 10.1371/journal.pone.0180423 Full text in Research Archive.
  • Guren, Ellen; Figved, Wender; Frihagen, Frede Jon; Watne, Leiv Otto & WESTBERG, MARIANNE (2017). Prosthetic joint infection?a devastating complication of hemiarthroplasty for hip fracture. Acta Orthopaedica.  ISSN 1745-3674.  88(4), s 383- 389 . doi: 10.1080/17453674.2017.1301009
  • Hov, Karen Roksund; Bolstad, Nils; Idland, Ane-Victoria; Zetterberg, Henrik; Blennow, Kaj; Chaudhry, Farrukh Abbas; Frihagen, Frede Jon; Ræder, Johan; Wyller, Torgeir Bruun & Watne, Leiv Otto (2017). Cerebrospinal Fluid S100B and Alzheimer's Disease Biomarkers in Hip Fracture Patients with Delirium. Dementia and geriatric cognitive disorders extra.  ISSN 1664-5464.  7(3), s 374- 385 . doi: 10.1159/000481853 Full text in Research Archive.
  • Idland, Ane-Victoria; Wyller, Torgeir Bruun; Støen, Randi; Dahl, Gry Torsæter; Frihagen, Frede Jon; Brækhus, Anne; Hassel, Bjørnar & Watne, Leiv Otto (2017). Cerebrospinal Fluid Phosphate in Delirium after Hip Fracture. Dementia and geriatric cognitive disorders extra.  ISSN 1664-5464.  7(3), s 309- 317 . doi: 10.1159/000478723 Full text in Research Archive.
  • Malouf-Sierra, Jorge; Tarantino, Umberto; García-Hernández, Pedro A.; Corradini, Costantino; Overgaard, Søren; Stepan, Jan J.; Borris, Lars; Lespessailles, Eric; Frihagen, Frede Jon; Papavasiliou, Kyriakos; Petto, Helmut; Aspenberg, Per; Caeiro, José Ramón & Marin, Fernando (2017). Effect of teriparatide or risedronate in elderly patients with a recent pertrochanteric hip fracture: final results of a 78-week randomized clinical trial. Journal of Bone and Mineral Research.  ISSN 0884-0431.  32(5), s 1040- 1051 . doi: 10.1002/jbmr.3067
  • Neerland, Bjørn Erik; Krogseth, Maria; Juliebø, Vibeke; Ranhoff, Anette Hylen; Engedal, Knut; Frihagen, Frede Jon; Ræder, Johan; Wyller, Torgeir Bruun & Watne, Leiv Otto (2017). Perioperative hemodynamics and risk for delirium and new onset dementia in hip fracture patients; A prospective follow-up study. PLOS ONE.  ISSN 1932-6203.  12(7:e0180641), s 1- 18 . doi: 10.1371/journal.pone.0180641 Full text in Research Archive.
  • Svenøy, Stian; WESTBERG, MARIANNE; Figved, Wender; Valland, Haldor; Brun, Ole-Christian Laahne; Wangen, Helge; Madsen, Jan Erik & Frihagen, Frede Jon (2017). Posterior versus lateral approach for hemiarthroplasty after femoral neck fracture: Early complications in a prospective cohort of 583 patients. Injury.  ISSN 0020-1383.  48(7), s 1565- 1569 . doi: 10.1016/j.injury.2017.03.024
  • Torbergsen, Anne Cathrine; Watne, Leiv Otto; Wyller, Torgeir Bruun; Frihagen, Frede Jon; Strømsøe, Knut; Bøhmer, Thomas & Mowe, Morten (2017). Micronutrients and the risk of hip fracture: Case–control study. Clinical Nutrition.  ISSN 0261-5614.  36(2), s 438- 443 . doi: 10.1016/j.clnu.2015.12.014 Show summary
  • Tsukanaka, Masako; Støen, Ragnhild Øydna; Figved, Wender; Frihagen, Frede Jon; Nordsletten, Lars & Röhrl, Stephan Maximillian (2017). Steady state acetabular cartilage wear after bipolar hemiarthroplasty: a case series of 10 patients With radiostereometric analysis. HIP International.  ISSN 1120-7000.  27(2), s 193- 197 . doi: 10.5301/hipint.5000437
  • Dolatowski, Filip Celestyn; Adampour, Mina; Frihagen, Frede Jon; Stavem, Knut; Utvåg, Stein-Erik & Hoelsbrekken, Sigurd Erik (2016). Preoperative posterior tilt of at least 20° increased the risk of fixation failure in Garden-I and -II femoral neck fractures: 322 patients followed for a mean of 3 years. Acta Orthopaedica.  ISSN 1745-3674.  87(3), s 252- 256 . doi: 10.3109/17453674.2016.1155253 Full text in Research Archive.
  • Hall, Roanna J.; Watne, Leiv Otto; Idland, Ane-Victoria; Ræder, Johan; Frihagen, Frede Jon; MacLullich, Alasdair M.J.; Staff, Anne Cathrine; Wyller, Torgeir Bruun & Fekkes, Durk (2016). Cerebrospinal fluid levels of neopterin are elevated in delirium after hip fracture. Journal of Neuroinflammation.  ISSN 1742-2094.  13:170 . doi: 10.1186/s12974-016-0636-1
  • Hov, Karen Roksund; Berg, Jens Petter; Frihagen, Frede Jon; Ræder, Johan; Hall, Roanna J.; Wyller, Torgeir Bruun & Watne, Leiv Otto (2016). Blood-cerebrospinal fluid barrier integrity in delirium determined by Q-Albumin. Dementia and Geriatric Cognitive Disorders.  ISSN 1420-8008.  41(3-4), s 192- 198 . doi: 10.1159/000443789
  • Idland, Ane-Victoria; Wyller, Torgeir Bruun; Støen, Randi; Eri, Lars Magne; Frihagen, Frede Jon; Ræder, Johan; Chaudhry, Farrukh Abbas; Hansson, Oskar; Zetterberg, Henrik; Blennow, Kaj; Bogdanovic, Nenad; Brækhus, Anne & Watne, Leiv Otto (2016). Preclinical amyloid-β and axonal degeneration pathology in delirium. Journal of Alzheimer's Disease.  ISSN 1387-2877.  55(1), s 371- 379 . doi: 10.3233/JAD-160461
  • Krogseth, Maria; Watne, Leiv Otto; Juliebø, Vibeke; Skovlund, Eva; Engedal, Knut; Frihagen, Frede Jon & Wyller, Torgeir Bruun (2016). Delirium is a risk factor for further cognitive decline in cognitively impaired hip fracture patients. Archives of gerontology and geriatrics (Print).  ISSN 0167-4943.  64, s 38- 44 . doi: 10.1016/j.archger.2015.12.004
  • Neerland, Bjørn Erik; Hall, Roanna J.; Seljeflot, Ingebjørg; Frihagen, Frede Jon; MacLullich, Alasdair M.J.; Ræder, Johan; Wyller, Torgeir Bruun & Watne, Leiv Otto (2016). Associations between delirium and preoperative cerebrospinal fluid C-reactive protein, interleukin-6, and interleukin-6 receptor in individuals with acute hip fracture. Journal of The American Geriatrics Society.  ISSN 0002-8614.  64(7), s 1456- 1463 . doi: 10.1111/jgs.14238
  • Watne, Leiv Otto; Idland, Ane-Victoria; Fekkes, Durk; Ræder, Johan; Frihagen, Frede Jon; Ranhoff, Anette Hylen; Chaudhry, Farrukh Abbas; Engedal, Knut; Wyller, Torgeir Bruun & Hassel, Bjørnar (2016). Increased CSF levels of aromatic amino acids in hip fracture patients with delirium suggests higher monoaminergic activity. BMC Geriatrics.  ISSN 1471-2318.  16(149) . doi: 10.1186/s12877-016-0324-0 Full text in Research Archive.
  • ANDERSEN, METTE RENATE; Frihagen, Frede Jon; Madsen, Jan Erik & Figved, Wender (2015). High complication rate after syndesmotic screw removal. Injury.  ISSN 0020-1383.  46(11), s 2283- 2287 . doi: 10.1016/j.injury.2015.08.021
  • Bhandari, Mohit; Devereaux, Philip J.; Einhorn, Thomas A.; Thabane, Lehana; Schemitsch, Emil H.; Koval, Kenneth J.; Frihagen, Frede Jon; Poolman, Rudolf W.; Tetsworth, Kevin; Guerra-Farfán, Ernesto; Madden, Kim; Sprague, Sheila & Guyatt, Gordon Henry (2015). Hip fracture evaluation with alternatives of total hip arthroplasty versus hemiarthroplasty (HEALTH): Protocol for a multicentre randomised trial. BMJ Open.  ISSN 2044-6055.  5(2) . doi: 10.1136/bmjopen-2014-006263
  • Slobogean, Gerard P.; Giannoudis, Peter V.; Frihagen, Frede Jon; Forte, Mary L; Morshed, Saam & Bhandari, Mohit (2015). Bigger data, bigger problems. Journal of Orthopaedic Trauma.  ISSN 0890-5339.  29, s S43- S46 . doi: 10.1097/BOT.0000000000000463
  • Torbergsen, Anne Cathrine; Watne, Leiv Otto; Frihagen, Frede Jon; Wyller, Torgeir Bruun; Brugård, Anniken & Mowe, Morten (2015). Vitamin deficiency as a risk factor for delirium. European Geriatric Medicine.  ISSN 1878-7649.  6(4), s 314- 318 . doi: 10.1016/j.eurger.2014.09.002
  • Torbergsen, Anne Cathrine; Watne, Leiv Otto; Wyller, Torgeir Bruun; Frihagen, Frede Jon; Strømsøe, Knut; Bøhmer, Thomas & Mowe, Morten (2015). Vitamin K1 and 25(OH)D are independently and synergistically associated with a risk for hip fracture in an elderly population: A case control study. Clinical Nutrition.  ISSN 0261-5614.  34(1), s 101- 106 . doi: 10.1016/j.clnu.2014.01.016
  • WESTBERG, MARIANNE; Frihagen, Frede Jon; Brun, Ole-Christian Laahne; Figved, Wender; Grøgaard, Bjarne; Valland, Haldor; Wangen, Helge & Snorrason, Finnur (2015). Effectiveness of Gentamicin-containing collagen sponges for prevention of surgical site infection after hip arthroplasty: A multicenter randomized trial. Clinical Infectious Diseases.  ISSN 1058-4838.  60(12), s 1752- 1759 . doi: 10.1093/cid/civ162
  • Williksen, John Håkon; Husby, Torstein; Hellund, Johan Castberg; Kvernmo, Hebe Desiree; Rosales, Carina & Frihagen, Frede Jon (2015). External fixation and adjuvant pins versus volar locking plate fixation in unstable distal radius fractures: A randomized, controlled study with a 5-year follow-up. Journal of Hand Surgery-American Volume.  ISSN 0363-5023.  40(7), s 1333- 1340 . doi: 10.1016/j.jhsa.2015.03.008
  • Langslet, Ellen; Frihagen, Frede Jon; Opland, Vidar; Madsen, Jan Erik; Nordsletten, Lars & Figved, Wender (2014). Cemented versus Uncemented Hemiarthroplasty for Displaced Femoral Neck Fractures: 5-year Followup of a Randomized Trial. Clinical Orthopaedics and Related Research.  ISSN 0009-921X.  472(4), s 1291- 1299 . doi: 10.1007/s11999-013-3308-9
  • Støen, Ragnhild Øydna; Lofthus, Cathrine Marie; Nordsletten, Lars; Madsen, Jan Erik & Frihagen, Frede Jon (2014). Randomized trial of hemiarthroplasty versus internal fixation for femoral neck fractures: no differences at 6 years. Clinical Orthopaedics and Related Research.  ISSN 0009-921X.  472(1), s 360- 367 . doi: 10.1007/s11999-013-3245-7
  • Watne, Leiv Otto; Hall, Roanna J.; Molden, Espen; Ræder, Johan; Frihagen, Frede Jon; MacLullich, Alasdair M.J.; Juliebø, Vibeke; Nyman, Anna Armika Tussilago; Meagher, David & Wyller, Torgeir Bruun (2014). Anticholinergic activity in cerebrospinal fluid and serum in individuals with hip fracture with and without delirium. Journal of The American Geriatrics Society.  ISSN 0002-8614.  62(1), s 94- 102 . doi: 10.1111/jgs.12612
  • Watne, Leiv Otto; Torbergsen, Anne Cathrine; Conroy, Simon; Engedal, Knut; Frihagen, Frede; Hjorthaug, Geir Aasmund; Juliebø, Vibeke; Ræder, Johan; Saltvedt, Ingvild; Skovlund, Eva & Wyller, Torgeir Bruun (2014). The effect of a pre- and postoperative orthogeriatric service on cognitive function in patients with hip fracture: Randomized controlled trial (Oslo Orthogeriatric Trial). BMC Medicine.  ISSN 1741-7015.  12(1) . doi: 10.1186/1741-7015-12-63 Full text in Research Archive.
  • Skaara, Helene Engberg; Moksnes, Håvard; Frihagen, Frede Jon & Stuge, Britt (2013). Self-reported and performance-based functional outcomes after surgical repair of proximal hamstring avulsions. American Journal of Sports Medicine.  ISSN 0363-5465.  41(11), s 2577- 2584 . doi: 10.1177/0363546513499518 Show summary
  • WESTBERG, MARIANNE; Snorrason, Finnur & Frihagen, Frede Jon (2013). Preoperative waiting time increased the risk of periprosthetic infection in patients with femoral neck fracture. Acta Orthopaedica.  ISSN 1745-3674.  84(2), s 124- 129 . doi: 10.3109/17453674.2013.775044
  • Williksen, John Håkon; Frihagen, Frede Jon; Hellund, Johan Castberg; Kvernmo, Helene Ballo & Husby, Torstein (2013). Volar Locking Plates Versus External Fixation and Adjuvant Pin Fixation in Unstable Distal Radius Fractures: A Randomized, Controlled Study. Journal of Hand Surgery-American Volume.  ISSN 0363-5023.  38A(8), s 1469- 1476 . doi: 10.1016/j.jhsa.2013.04.039
  • Bjørnelv, Gudrun Maria Waaler; Frihagen, Frede Jon; Madsen, Jan Erik; Nordsletten, Lars & Aas, Eline (2012). Hemiarthroplasty compared to internal fixation with percutaneous cannulated screws as treatment of displaced femoral neck fractures in the elderly: cost-utility analysis performed alongside a randomized, controlled trial. Osteoporosis International.  ISSN 0937-941X.  23(6), s 1711- 1719 . doi: 10.1007/s00198-011-1772-1
  • Figved, Wender; Dahl, Jon; Snorrason, Finnur; Frihagen, Frede Jon; Röhrl, Stephan Maximillian; Madsen, Jan Erik & Nordsletten, Lars (2012). Radiostereometric analysis of hemiarthroplasties of the hip - a highly precise method for measurements of cartilage wear. Osteoarthritis and Cartilage.  ISSN 1063-4584.  20(1), s 36- 42 . doi: 10.1016/j.joca.2011.11.006
  • Robstad, Bjørn; Frihagen, Frede Jon & Nordsletten, Lars (2012). The rate of hip osteoarthritis in patients with proximal femoral fractures versus hip contusion. Osteoporosis International.  ISSN 0937-941X.  23(3), s 901- 905 . doi: 10.1007/s00198-011-1628-8
  • Schizas, Nikos; Weiss, Rudiger; Lian, Øystein Bjerkestrand; Frihagen, Frede Jon; Bahr, Roald & Ackermann, Paul W. (2012). Glutamate receptors in tendinopathic patients. Journal of Orthopaedic Research.  ISSN 0736-0266.  30(9), s 1447- 1452 . doi: 10.1002/jor.22094 Show summary
  • Støen, Ragnhild Øydna; Nordsletten, Lars; Meyer, Haakon E; Frihagen, Frede Jon; Falch, Jan Arvid & Lofthus, Cathrine Marie (2012). Hip fracture incidence is decreasing in the high incidence area of Oslo, Norway. Osteoporosis International.  ISSN 0937-941X.  23(10), s 2527- 2534 . doi: 10.1007/s00198-011-1888-3
  • Wyller, Torgeir Bruun; Watne, Leiv Otto; Torbergsen, Anne Cathrine; Engedal, Knut Arne; Frihagen, Frede Jon; Juliebø, Vibeke; Saltvedt, Ingvild; Skovlund, Eva; Ræder, Johan & Conroy, Simon (2012). The effect of a pre- and post-operative orthogeriatric service on cognitive function in patients with hip fracture. The protocol of the Oslo Orthogeriatrics Trial. BMC Geriatrics.  ISSN 1471-2318.  12(36) . doi: 10.1186/1471-2318-12-36 Full text in Research Archive.
  • Frihagen, Frede Jon; Figved, Wender; Madsen, Jan Erik; Lofthus, Cathrine Marie; Støen, Ragnhild Øydna & Nordsletten, Lars (2010). Behandling av lårhalsbrudd :. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  130(16), s 1614- 1617 . doi: 10.4045/tidsskr.09.1264
  • Frihagen, Frede Jon; Waaler, Gudrun Maria; Madsen, Jan Erik; Nordsletten, Lars; Aspaas, Silje & Aas, Eline (2010). The cost of hemiarthroplasty compared to that of internal fixation for femoral neck fractures 2-year results involving 222 patients based on a randomized controlled trial. Acta Orthopaedica.  ISSN 1745-3674.  81(4), s 446- 452 . doi: 10.3109/17453674.2010.492763
  • Madsen, Jan Erik; Frihagen, Frede Jon & Flugsrud, Gunnar B (2010). Optimal ortopedisk behandling av den hardt skadde pasienten. Kirurgen.  ISSN 1504-8888.  (3), s 146- 149
  • Schizas, Nikos; Lian, Øystein; Frihagen, Frede Jon; Engebretsen, Lars; Bahr, Roald & Ackermann, Paul W (2010). Coexistence of up-regulated NMDA receptor 1 and glutamate on nerves, vessels and transformed tenocytes in tendinopathy. Scandinavian Journal of Medicine & Science in Sports.  ISSN 0905-7188.  20(2), s 208- 215 . doi: 10.1111/j.1600-0838.2009.00913.x Show summary
  • Figved, Wender; Opland, V; Frihagen, Frede Jon; Jervidalo, T; Madsen, Jan Erik & Nordsletten, Lars (2009). Cemented versus Uncemented Hemiarthroplasty for Displaced Femoral Neck Fractures. Clinical Orthopaedics and Related Research.  ISSN 0009-921X.  467(9), s 2426- 2435 . doi: 10.1007/s11999-008-0672-y
  • Frihagen, Frede Jon (2009). On the diagnosis and treatment of femoral neck fractures. Acta Orthopaedica.  ISSN 1745-3674.  80, s 3- 26
  • Heetveld, Martin J.; Rogmark, Cecilia; Frihagen, Frede Jon & Keating, John (2009). Internal Fixation Versus Arthroplasty for Displaced Femoral Neck Fractures: What is the Evidence?. Journal of Orthopaedic Trauma.  ISSN 0890-5339.  23(6), s 395- 402
  • Frihagen, Frede Jon; Grotle, Margreth; Madsen, Jan Erik; Wyller, Torgeir Bruun; Mowinckel, P & Nordsletten, Lars (2008). Outcome after femoral neck fractures: A comparison of Harris Hip Score, Eq-5d and Barthel Index. Injury.  ISSN 0020-1383.  39(10), s 1147- 1156 . doi: 10.1016/j.injury.2008.03.027
  • Lofthus, Cathrine M; Frihagen, Frede Jon; Meyer, Haakon E; Nordsletten, Lars; Melhuus, K & Falch, Jan Arvid (2008). Epidemiology of distal forearm fractures in Oslo, Norway. Osteoporosis International.  ISSN 0937-941X.  19(6), s 781- 786 . doi: 10.1007/s00198-007-0499-5
  • Figved, Wender; Frihagen, Frede Jon; Nordsletten, Lars; Madsen, Jan Erik; Havelin, L.I.; Furnes, O.N. & Dybvik, Eva (2007). Conversion from failed hemiarthroplasties to total hip arthroplasty. Analysis of 595 hips with previous femoral neck fractures in the Norwegian Arthroplasty Register. Acta Orthopaedica.  ISSN 1745-3674.  78(6), s 711- 718
  • Frihagen, Frede Jon; Madsen, Jan Erik; Reinholt, Finn P. & Nordsletten, Lars (2007). Screw augmentation in displaced femoral neck fractures - Clinical and histological results using a new composite. Injury.  ISSN 0020-1383.  38, s 797- 805 . doi: 10.1016/j.injury.2007.03.005
  • Frihagen, Frede Jon; Nordsletten, Lars & Madsen, Jan Erik (2007). Hemiarthroplasty or internal fixation for intracapsular displaced femoral neck fractures: randomised controlled trial. BMJ. British Medical Journal.  ISSN 0959-8146.  335, s 1251- 1254 . doi: 10.1136/bmj.39399.456551.25
  • Figved, Wender; Norum, Ole-Jacob; Frihagen, Frede Jon; Madsen, Jan Erik & Nordsletten, Lars (2006). Interprosthetic dislocations of the Charnley/Hastings hemiarthroplasty - Report of 11 cases in 350 consecutive patients. Injury.  ISSN 0020-1383.  37(2), s 157- 161 . doi: 10.1016/j.injury.2005.07.005

View all works in Cristin

  • Nordbø, Jakob Vangen; Frihagen, Frede Jon & Solberg, Lene Bergendal (2020). Fastlegens rolle ved osteoporosebehandling etter brudd. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  17, s 1738- 1739 . doi: 10.4045/tidsskr.20.0822
  • Borgen, Tove Tveitan; Bjørnerem, Åshild; Solberg, Lene Bergendal; Andreasen, Camilla; Brunborg, Cathrine; Hübschle, Lars Michael; Stenbro, May-Britt; Hansen, Ann Kristin; Apalset, Ellen Margrete; Gjertsen, Jan-Erik; Lund, Ida; Dahl, Cecilie; Figved, Wender; Stutzer, Jens-Meinhard; Frihagen, Frede Jon; Nordsletten, Lars & Eriksen, Erik Fink (2019). Determinants of Trabecular Bone Score and Vertebral Fracture Status in Women With Fragility Fractures: A Cross-sectional Sub-study of NoFRACT.
  • Borgen, Tove Tveitan; Bjørnerem, Åshild; Solberg, Lene Bergendal; Brunborg, Cathrine; Andreasen, Camilla; Hübschle, Lars Michael; Stenbro, May-Britt; Apalset, Ellen Margrete; Gjertsen, Jan-Erik; Figved, Wender; Froholdt, Anne; Stutzer, Jens-Meinhard; Hansen, Ann Kristin; Omsland, Tone Kristin; Lund, Ida; Frihagen, Frede Jon; Nordsletten, Lars & Eriksen, Erik Fink (2019). Individuals with Central Fractures have More Prevalent Vertebral Fractures, Lower Trabecular Bone Score and Lower BMD than Individuals with Peripheral Fractures: a Sub-study of NoFRACT.
  • Hedström, Margareta; Ekström, Wilhelmina; Al-Ani, Amer; Campenfeldt, Pierre; Bartels, Stefan; Gjertsen, Jan-Erik; Frihagen, Frede Jon; Rogmark, Cecilia & Utvåg, Stein-Erik (2019). High failure rate after internal fixation and beneficial outcome after arthroplasty in treatment of displaced femoral neck fractures in patients between 55 and 70 years. Acta Orthopaedica.  ISSN 1745-3674.  90(1), s 94- 95 . doi: 10.1080/17453674.2018.1556875
  • Andreasen, Camilla; G. Rogli, Veronica; Elvenes, Jan; Joakimsen, Ragnar Martin; Borgen, Tove Tveitan; Solberg, Lene Bergendal; Frihagen, Frede Jon; Nordsletten, Lars; Basso, Trude; Eriksen, Erik Fink; Dahl, Cecilie; Omsland, Tone Kristin & Bjørnerem, Åshild (2018). Tromsoporosis - Secondary Fracture Prevention Program resulted in high adherence to anti-osteoporotic drugs in Tromsø, Norway.
  • Andreasen, Camilla; G. Rogli, Veronica; Elvenes, Jan; Joakimsen, Ragnar Martin; Borgen, Tove Tveitan; Solberg, Lene Bergendal; Frihagen, Frede Jon; Nordsletten, Lars; Eriksen, Erik Fink; Basso, Trude; Dahl, Cecilie; Omsland, Tone Kristin & Bjørnerem, Åshild (2018). Tromsoporosis - Secondary Fracture Prevention Program resulted in high adherence to anti-osteoporotic drugs in Tromsø, Norway.
  • Andreasen, Camilla; G. Rogli, Veronica; Elvenes, Jan; Joakimsen, Ragnar Martin; Borgen, Tove Tveitan; Solberg, Lene Bergendal; Frihagen, Frede Jon; Nordsletten, Lars; Eriksen, Erik Fink; Basso, Trude; Dahl, Cecilie; Omsland, Tone Kristin & Bjørnerem, Åshild (2018). Tromsoporosis - Secondary Fracture Prevention Program resulted in improved adherence to anti-osteoporotic drugs in Tromsø, Norway.
  • Pettersen, Petter Morten; Frihagen, Frede Jon; Saltvedt, Ingvild & Figved, Wender (2018). På tide å innføre ortogeriatri i Norge?. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  138(14), s 1320- 1321 . doi: 10.4045/tidsskr.18.0485
  • Andreasen, Camilla; Osima, Marit; Rognli, Veronica; Grundel, Dag E.; Elvenes, Jan; Knutsen, Gunnar; Meknas, Khaled; Joakimsen, Ragnar Martin; Borgen, Tove Tveitan; Solberg, Lene Bergendal; Frihagen, Frede Jon; Nordsletten, Lars; Eriksen, Erik Fink; Basso, Trude; Dahl, Cecilie; Omsland, Tone Kristin & Bjørnerem, Åshild (2017). Tromsoporosis - Adherence to a Secondary Fracture Prevention Program in Tromsø, Norway.
  • Johnsen, Lars Gunnar; Watne, Leiv Otto; Frihagen, Frede Jon; Helbostad, Jorunn L.; Prestmo, Anders; Saltvedt, Ingvild; Sletvold, Olav & Wyller, Torgeir Bruun (2015). Hvorfor ortogeriatri?. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  135(6), s 523- 524 . doi: 10.4045/tidsskr.15.0188
  • Frihagen, Frede Jon; Madsen, Jan Erik; Nordsletten, Lars; Lofthus, Cathrine Marie & Støen, Ragnhild Øydna (2013). HEMIARTHROPLASTY OR INTERNAL FIXATION FOR DISPLACED FEMORAL NECK FRACTURES IN THE ELDERLY: 6 YEAR FOLLOW UP OF AN RCT. Osteoporosis International.  ISSN 0937-941X.  24, s S135- S135
  • Frihagen, Frede Jon; Sandnes, Øystein Drolsum & Støen, Ragnhild (2013). POOR CLINICAL RESULTS AFTER INTERNAL FIXATION OF UNDISPLACED FEMORAL NECK FRACTURES. Osteoporosis International.  ISSN 0937-941X.  24, s S200- S200
  • Frihagen, Frede Jon; Støen, Ragnhild Øydna; Hygen, Hans Olav; Nordsletten, Lars & Lofthus, Cathrine Marie (2011). ICE AND SNOW IN OSLO GAVE A MARKED INCREASE IN DISTAL RADIUS FRACTURES, BUT NOT IN HIP FRACTURES. Osteoporosis International.  ISSN 0937-941X.  22, s 159- 160
  • Hagen, Gunhild; Wisløff, Torbjørn; Falch, Jan; Lofthus, Cathrine; Frihagen, Frede; Wensaas, Knut-Arne; Granum, Lars; Nevjar, Janicke; Kristiansen, Ivar Sønbø & Klemp, Marianne (2011). Efficacy and cost-effectiveness of alendronate for the prevention of fractures in postmenopausal women in Norway. Rapport fra Kunnskapssenteret. 10/2011.
  • Frihagen, Frede Jon; Figved, Wender; Madsen, Jan Erik; Lofthus, Cathrine Marie; Støen, Ragnhild Øydna & Nordsletten, Lars (2010). F. Frihagen og medarbeidere svarer: :. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  130(20), s 2011
  • Figved, Wender; Frihagen, Frede Jon; Nordsletten, Lars; Madsen, Jan Erik; Havelin, L.I.; Furnes, O.N. & Dybvik, Eva (2007). Resultater etter konvertering fra hemiprotese til totalprotese - 595 hofter med tidligere medialt lårhalsbrudd i Nasjonalt Register for Leddproteser.
  • Lian, Ø.; Dahl, Johan; Ackermann, Paul W.; Frihagen, Frede Jon; Engebretsen, Lars & Bahr, Roald (2006). Smärtmedierande neuropeptider i kronisk sensmärta.
  • Frihagen, Frede Jon; Nordsletten, Lars; Osnes, Eivind Kaare & Madsen, Jan Erik (2004). Hemiprotese gir bedre funksjon enn skrueosteosyntese 4 måneder postoperativt ved disloserte lårhalsbrudd.
  • Mæhlum, T; Bakken, HN; Madsen, Jan Erik; Walløe, Anders; Aksnes, E.; Frihagen, Frede Jon & Nordsletten, Lars (2004). En sammenlikning av primærhemiartroplastikk versus hemiartroplastikk etter havarert skruefiksasjon.

View all works in Cristin

Published Sep. 1, 2020 2:19 PM - Last modified Sep. 1, 2020 2:19 PM