Publications by Christian Hellum

63 publications found

  1. Weber C, Hermansen E, Myklebust TÅ, Banitalebi H, Brisby H, Brox JI, Franssen E, Hellum C, Indrekvam K, Harboe K, Rekeland F, Solberg T, Storheim K, Austevoll IM (2024)
    Comparison of Patients Operated for Lumbar Spinal Stenosis with and without Spondylolisthesis - A Secondary Analysis of the NORDSTEN Trials
    Spine (Phila Pa 1976) (in press)
    DOI 10.1097/BRS.0000000000005038, PubMed 38857371
  2. Åkerstedt J, Wänman J, Banitalebi H, Myklebust TÅ, Weber C, Storheim K, Hellum C, Indrekvam K, Hermansen E, Brisby H (2024)
    Change in Lumbar Lordosis after Decompressive Surgery in Lumbar Spinal Stenosis Patients and Associations with Patient Related Outcomes 2 Years after Surgery. Radiological and Clinical Results from the NORDSTEN Spinal Stenosis Trial
    Spine (Phila Pa 1976) (in press)
    DOI 10.1097/BRS.0000000000005037, PubMed 38736326
  3. Rolfsen MP, Gammelsrud KW, Espeland A, Bråten LC, Mjønes SB, Austevoll I, Dolatowski FC, Årrestad MB, Toppe MK, Orlien IE, Holberg-Petersen M, Fagerland M, Zwart JA, Storheim K, Hellum C (2024)
    Bacterial growth in patients with low back pain and Modic changes: protocol of a multicentre, case-control biopsy study
    BMJ Open, 14 (5), e082244
    DOI 10.1136/bmjopen-2023-082244, PubMed 38719329
  4. Hermansen E, Myklebust TÅ, Austevoll IM, Hellum C, Storheim K, Banitalebi H, Indrekvam K, Brisby H (2024)
    Dural Sac Cross-sectional area change from preoperatively and up to 2 years after decompressive surgery for central lumbar spinal stenosis: investigation of operated levels, data from the NORDSTEN study
    Eur Spine J (in press)
    DOI 10.1007/s00586-024-08251-4, PubMed 38587545
  5. Banitalebi H, Hermansen E, Hellum C, Espeland A, Storheim K, Myklebust TÅ, Indrekvam K, Brisby H, Weber C, Anvar M, Aaen J, Negård A (2024)
    Preoperative fatty infiltration of paraspinal muscles assessed by MRI is associated with less improvement of leg pain 2 years after surgery for lumbar spinal stenosis
    Eur Spine J, 33 (5), 1967-1978
    DOI 10.1007/s00586-024-08210-z, PubMed 38528161
  6. Wänman J, Åkerstedt J, Banitalebi H, Myklebust TÅ, Weber C, Storheim K, Austevoll IM, Hellum C, Indrekvam K, Brisby H, Hermansen E (2024)
    The association between lumbar lordosis preoperatively and changes in PROMs for lumbar spinal stenosis patients 2 years after spinal surgery: radiological and clinical results from the NORDSTEN-spinal stenosis trial
    Eur Spine J, 33 (5), 1950-1956
    DOI 10.1007/s00586-024-08137-5, PubMed 38386059
  7. Tronstad S, Haug KJ, Myklebust TÅ, Weber C, Brisby H, Austevoll IM, Hellum C, Storheim K, Aaen J, Banitalebi H, Brox JI, Grundnes O, Franssen E, Indrekvam K, Solberg T, Hermansen E (2024)
    Do patients with lumbar spinal stenosis benefit from decompression of levels with adjacent moderate stenosis? A prospective cohort study from the NORDSTEN study
    Spine J, 24 (6), 1015-1021
    DOI 10.1016/j.spinee.2024.01.010, PubMed 38266826
  8. Espeland A, Kristoffersen PM, Bråten LCH, Grøvle L, Grotle M, Haugen AJ, Rolfsen MP, Hellum C, Zwart JA, Storheim K, Assmus J, Vetti N (2023)
    Longitudinal Relationship Between Reduced Modic Change Edema and Disability and Pain in Patients With Chronic Low Back Pain
    Spine (Phila Pa 1976), 48 (24), 1699-1708
    DOI 10.1097/BRS.0000000000004837, PubMed 37759351
  9. Mikkelsen E, Ingebrigtsen T, Thyrhaug AM, Olsen LR, Nygaard ØP, Austevoll I, Brox JI, Hellum C, Kolstad F, Lønne G, Solberg TK (2023)
    The Norwegian registry for spine surgery (NORspine): cohort profile
    Eur Spine J, 32 (11), 3713-3730
    DOI 10.1007/s00586-023-07929-5, PubMed 37718341
  10. Austevoll IM, Hellum C, Försth P (2023)
    Letter to the Editor Regarding the Paper of Shukla and Colleagues on Laminectomy With Fusion is Associated With Greater Functional Improvement Compared With Laminectomy Alone for the Treatment of Degenerative Lumbar Spondylolisthesis
    Spine (Phila Pa 1976), 49 (2), E17
    DOI 10.1097/BRS.0000000000004800, PubMed 37589286
  11. Aaen J, Banitalebi H, Austevoll IM, Hellum C, Storheim K, Myklebust TÅ, Anvar M, Weber C, Solberg T, Grundnes O, Brisby H, Indrekvam K, Hermansen E (2023)
    Is the presence of foraminal stenosis associated with outcome in lumbar spinal stenosis patients treated with posterior microsurgical decompression
    Acta Neurochir (Wien), 165 (8), 2121-2129
    DOI 10.1007/s00701-023-05693-5, PubMed 37407851
  12. Indrekvam K, Bånerud IF, Hermansen E, Austevoll IM, Rekeland F, Guddal MH, Solberg TK, Brox JI, Hellum C, Storheim K (2023)
    The Norwegian degenerative spondylolisthesis and spinal stenosis (NORDSTEN) study: study overview, organization structure and study population
    Eur Spine J, 32 (12), 4162-4173
    DOI 10.1007/s00586-023-07827-w, PubMed 37395780
  13. Hellum C, Rekeland F, Småstuen MC, Solberg T, Hermansen E, Storheim K, Brox JI, Furunes H, Franssen E, Weber C, Brisby H, Grundnes O, Algaard KRH, Böker T, Banitalebi H, Indrekvam K, Austevoll IM (2023)
    Surgery in degenerative spondylolisthesis: does fusion improve outcome in subgroups? A secondary analysis from a randomized trial (NORDSTEN trial)
    Spine J, 23 (11), 1613-1622
    DOI 10.1016/j.spinee.2023.06.386, PubMed 37355044
  14. Riksaasen AS, Kaur S, Solberg TK, Austevoll I, Brox JI, Dolatowski FC, Hellum C, Kolstad F, Lonne G, Nygaard ØP, Ingebrigtsen T (2023)
    Impact of the number of previous lumbar operations on patient-reported outcomes after surgery for lumbar spinal stenosis or lumbar disc herniation
    Bone Joint J, 105-B (4), 422-430
    DOI 10.1302/0301-620X.105B4.BJJ-2022-0704.R1, PubMed 36924173
  15. Hermansen E, Myklebust TÅ, Weber C, Brisby H, Austevoll IM, Hellum C, Storheim K, Aaen J, Banitalebi H, Brox JI, Grundnes O, Rekeland F, Solberg T, Franssen E, Indrekvam K (2023)
    Postoperative Dural Sac Cross-Sectional Area as an Association for Outcome After Surgery for Lumbar Spinal Stenosis: Clinical and Radiological Results From the NORDSTEN-Spinal Stenosis Trial
    Spine (Phila Pa 1976), 48 (10), 688-694
    DOI 10.1097/BRS.0000000000004565, PubMed 36809364
  16. Aaen J, Banitalebi H, Austevoll IM, Hellum C, Storheim K, Myklebust TÅ, Anvar M, Weber C, Solberg T, Grundnes O, Brisby H, Indrekvam K, Hermansen E (2022)
    The association between preoperative MRI findings and clinical improvement in patients included in the NORDSTEN spinal stenosis trial
    Eur Spine J, 31 (10), 2777-2785
    DOI 10.1007/s00586-022-07317-5, PubMed 35930062
  17. Banitalebi H, Aaen J, Storheim K, Negård A, Myklebust TÅ, Grotle M, Hellum C, Espeland A, Anvar M, Indrekvam K, Weber C, Brox JI, Brisby H, Hermansen E (2022)
    A novel MRI index for paraspinal muscle fatty infiltration: reliability and relation to pain and disability in lumbar spinal stenosis: results from a multicentre study
    Eur Radiol Exp, 6 (1), 38
    DOI 10.1186/s41747-022-00284-y, PubMed 35854201
  18. Hermansen E, Austevoll IM, Hellum C, Storheim K, Myklebust TÅ, Aaen J, Banitalebi H, Anvar M, Rekeland F, Brox JI, Franssen E, Weber C, Solberg TK, Furunes H, Grundnes O, Brisby H, Indrekvam K (2022)
    Comparison of 3 Different Minimally Invasive Surgical Techniques for Lumbar Spinal Stenosis: A Randomized Clinical Trial
    JAMA Netw Open, 5 (3), e224291
    DOI 10.1001/jamanetworkopen.2022.4291, PubMed 35344046
  19. Banitalebi H, Espeland A, Anvar M, Hermansen E, Hellum C, Brox JI, Myklebust TÅ, Indrekvam K, Brisby H, Weber C, Aaen J, Austevoll IM, Grundnes O, Negård A (2022)
    Reliability of preoperative MRI findings in patients with lumbar spinal stenosis
    BMC Musculoskelet Disord, 23 (1), 51
    DOI 10.1186/s12891-021-04949-4, PubMed 35033042
  20. Aaen J, Austevoll IM, Hellum C, Storheim K, Myklebust TÅ, Banitalebi H, Anvar M, Brox JI, Weber C, Solberg T, Grundnes O, Brisby H, Indrekvam K, Hermansen E (2021)
    Clinical and MRI findings in lumbar spinal stenosis: baseline data from the NORDSTEN study
    Eur Spine J, 31 (6), 1391-1398
    DOI 10.1007/s00586-021-07051-4, PubMed 34797405
  21. Austevoll IM, Storheim K, Hellum C, NORDSTEN-DS Investigators (2021)
    Surgery with or without Fusion for Lumbar Spondylolisthesis. Reply
    N Engl J Med, 385 (19), 1823-1824
    DOI 10.1056/NEJMc2114488, PubMed 34731549
  22. Austevoll IM, Hermansen E, Fagerland MW, Storheim K, Brox JI, Solberg T, Rekeland F, Franssen E, Weber C, Brisby H, Grundnes O, Algaard KRH, Böker T, Banitalebi H, Indrekvam K, Hellum C, NORDSTEN-DS Investigators (2021)
    Decompression with or without Fusion in Degenerative Lumbar Spondylolisthesis
    N Engl J Med, 385 (6), 526-538
    DOI 10.1056/NEJMoa2100990, PubMed 34347953
  23. Garratt AM, Furunes H, Hellum C, Solberg T, Brox JI, Storheim K, Johnsen LG (2021)
    Evaluation of the EQ-5D-3L and 5L versions in low back pain patients
    Health Qual Life Outcomes, 19 (1), 155
    DOI 10.1186/s12955-021-01792-y, PubMed 34049574
  24. Kristoffersen PM, Bråten LCH, Vetti N, Grøvle L, Hellum C, Storheim K, Zwart JA, Assmus J, Espeland A (2020)
    Oedema on STIR modified the effect of amoxicillin as treatment for chronic low back pain with Modic changes-subgroup analysis of a randomized trial
    Eur Radiol, 31 (6), 4285-4297
    DOI 10.1007/s00330-020-07542-w, PubMed 33247344
  25. Austevoll IM, Gjestad R, Solberg T, Storheim K, Brox JI, Hermansen E, Rekeland F, Indrekvam K, Hellum C (2020)
    Comparative Effectiveness of Microdecompression Alone vs Decompression Plus Instrumented Fusion in Lumbar Degenerative Spondylolisthesis
    JAMA Netw Open, 3 (9), e2015015
    DOI 10.1001/jamanetworkopen.2020.15015, PubMed 32910195
  26. Furunes H, Berg L, Espeland A, Thoresen H, Neckelmann G, Brøgger HM, Småstuen MC, Brox JI, Storheim K, Hellum C (2020)
    Facet Arthropathy Following Disc Replacement Versus Rehabilitation: A Prospective Study With 8-Year Follow-Up
    Spine (Phila Pa 1976), 45 (21), 1467-1475
    DOI 10.1097/BRS.0000000000003600, PubMed 32694494
  27. Hermansen E, Austevoll IM, Hellum C, Storheim K, Myklebust TÅ, Aaen J, Banitalebi H, Anvar M, Rekeland F, Brox JI, Franssen E, Weber C, Solberg T, Haug KJ, Grundnes O, Brisby H, Indrekvam K (2020)
    Comparable increases in dural sac area after three different posterior decompression techniques for lumbar spinal stenosis: radiological results from a randomized controlled trial in the NORDSTEN study
    Eur Spine J, 29 (9), 2254-2261
    DOI 10.1007/s00586-020-06499-0, PubMed 32556585
  28. Bråten LCH, Rolfsen MP, Espeland A, Wigemyr M, Aßmus J, Froholdt A, Haugen AJ, Marchand GH, Kristoffersen PM, Lutro O, Randen S, Wilhelmsen M, Winsvold BS, Kadar TI, Holmgard TE, Vigeland MD, Vetti N, Nygaard ØP, Lie BA, Hellum C, Anke A, Grotle M, Schistad EI, Skouen JS, Grøvle L et al. (2019)
    Efficacy of antibiotic treatment in patients with chronic low back pain and Modic changes (the AIM study): double blind, randomised, placebo controlled, multicentre trial
    BMJ, 367, l5654
    DOI 10.1136/bmj.l5654, PubMed 31619437
  29. Berg L, Thoresen H, Neckelmann G, Furunes H, Hellum C, Espeland A (2019)
    Facet arthropathy evaluation: CT or MRI?
    Eur Radiol, 29 (9), 4990-4998
    DOI 10.1007/s00330-019-06047-5, PubMed 30796571
  30. Hermansen E, Myklebust TÅ, Austevoll IM, Rekeland F, Solberg T, Storheim K, Grundnes O, Aaen J, Brox JI, Hellum C, Indrekvam K (2019)
    Clinical outcome after surgery for lumbar spinal stenosis in patients with insignificant lower extremity pain. A prospective cohort study from the Norwegian registry for spine surgery
    BMC Musculoskelet Disord, 20 (1), 36
    DOI 10.1186/s12891-019-2407-5, PubMed 30669998
  31. Austevoll IM, Gjestad R, Grotle M, Solberg T, Brox JI, Hermansen E, Rekeland F, Indrekvam K, Storheim K, Hellum C (2019)
    Follow-up score, change score or percentage change score for determining clinical important outcome following surgery? An observational study from the Norwegian registry for Spine surgery evaluating patient reported outcome measures in lumbar spinal stenosis and lumbar degenerative spondylolisthesis
    BMC Musculoskelet Disord, 20 (1), 31
    DOI 10.1186/s12891-018-2386-y, PubMed 30658613
  32. Austevoll IM, Hermansen E, Fagerland M, Rekeland F, Solberg T, Storheim K, Brox JI, Lønne G, Indrekvam K, Aaen J, Grundnes O, Hellum C (2019)
    Decompression alone versus decompression with instrumental fusion the NORDSTEN degenerative spondylolisthesis trial (NORDSTEN-DS); study protocol for a randomized controlled trial
    BMC Musculoskelet Disord, 20 (1), 7
    DOI 10.1186/s12891-018-2384-0, PubMed 30611229
  33. Furunes H, Hellum C, Espeland A, Brox JI, Småstuen MC, Berg L, Storheim K (2018)
    Adjacent Disc Degeneration After Lumbar Total Disc Replacement or Nonoperative Treatment: A Randomized Study with 8-year Follow-up
    Spine (Phila Pa 1976), 43 (24), 1695-1703
    DOI 10.1097/BRS.0000000000002712, PubMed 29794581
  34. Furunes H, Hellum C, Brox JI, Rossvoll I, Espeland A, Berg L, Brøgger HM, Småstuen MC, Storheim K (2017)
    Lumbar total disc replacement: predictors for long-term outcome
    Eur Spine J, 27 (3), 709-718
    DOI 10.1007/s00586-017-5375-1, PubMed 29103126
  35. Furunes H, Storheim K, Brox JI, Johnsen LG, Skouen JS, Franssen E, Solberg TK, Sandvik L, Hellum C (2017)
    Total disc replacement versus multidisciplinary rehabilitation in patients with chronic low back pain and degenerative discs: 8-year follow-up of a randomized controlled multicenter trial
    Spine J, 17 (10), 1480-1488
    DOI 10.1016/j.spinee.2017.05.011, PubMed 28583869
  36. Habiba S, Nygaard ØP, Brox JI, Hellum C, Austevoll IM, Solberg TK (2017)
    Risk factors for surgical site infections among 1,772 patients operated on for lumbar disc herniation: a multicentre observational registry-based study
    Acta Neurochir (Wien), 159 (6), 1113-1118
    DOI 10.1007/s00701-017-3184-2, PubMed 28424918
  37. Storheim K, Berg L, Hellum C, Gjertsen Ø, Neckelmann G, Espeland A, Keller A, Norwegian Spine Study Group (2017)
    Fat in the lumbar multifidus muscles - predictive value and change following disc prosthesis surgery and multidisciplinary rehabilitation in patients with chronic low back pain and degenerative disc: 2-year follow-up of a randomized trial
    BMC Musculoskelet Disord, 18 (1), 145
    DOI 10.1186/s12891-017-1505-5, PubMed 28376754
  38. Hermansen E, Austevoll IM, Romild UK, Rekeland F, Solberg T, Storheim K, Grundnes O, Aaen J, Brox JI, Hellum C, Indrekvam K (2017)
    Study-protocol for a randomized controlled trial comparing clinical and radiological results after three different posterior decompression techniques for lumbar spinal stenosis: the Spinal Stenosis Trial (SST) (part of the NORDSTEN Study)
    BMC Musculoskelet Disord, 18 (1), 121
    DOI 10.1186/s12891-017-1491-7, PubMed 28327114
  39. Austevoll IM, Gjestad R, Brox JI, Solberg TK, Storheim K, Rekeland F, Hermansen E, Indrekvam K, Hellum C (2016)
    The effectiveness of decompression alone compared with additional fusion for lumbar spinal stenosis with degenerative spondylolisthesis: a pragmatic comparative non-inferiority observational study from the Norwegian Registry for Spine Surgery
    Eur Spine J, 26 (2), 404-413
    DOI 10.1007/s00586-016-4683-1, PubMed 27421276
  40. Hermansen E, Romild UK, Austevoll IM, Solberg T, Storheim K, Brox JI, Hellum C, Indrekvam K (2016)
    Does surgical technique influence clinical outcome after lumbar spinal stenosis decompression? A comparative effectiveness study from the Norwegian Registry for Spine Surgery
    Eur Spine J, 26 (2), 420-427
    DOI 10.1007/s00586-016-4643-9, PubMed 27262561
  41. Storheim K, Hellum C (2015)
    No differences between physiotherapy and decompression surgery for patients considered surgical candidates for lumbar spinal stenosis [commentary]
    J Physiother, 62 (1), 49
    DOI 10.1016/j.jphys.2015.09.005, PubMed 26701160
  42. Johnsen LG, Hellum C, Storheim K, Nygaard ØP, Brox JI, Rossvoll I, Rø M, Andresen H, Lydersen S, Grundnes O, Pedersen M, Leivseth G, Olafsson G, Borgström F, Fritzell P, Norwegian Spine Study Group (2014)
    Cost-effectiveness of total disc replacement versus multidisciplinary rehabilitation in patients with chronic low back pain: a Norwegian multicenter RCT
    Spine (Phila Pa 1976), 39 (1), 23-32
    DOI 10.1097/BRS.0000000000000065, PubMed 24150435
  43. Berg L, Hellum C, Gjertsen Ø, Neckelmann G, Johnsen LG, Storheim K, Brox JI, Eide GE, Espeland A, Norwegian Spine Study Group (2013)
    Do more MRI findings imply worse disability or more intense low back pain? A cross-sectional study of candidates for lumbar disc prosthesis
    Skeletal Radiol, 42 (11), 1593-602
    DOI 10.1007/s00256-013-1700-x, PubMed 23982421
  44. Johnsen LG, Hellum C, Nygaard OP, Storheim K, Brox JI, Rossvoll I, Leivseth G, Grotle M (2013)
    Comparison of the SF6D, the EQ5D, and the oswestry disability index in patients with chronic low back pain and degenerative disc disease
    BMC Musculoskelet Disord, 14, 148
    DOI 10.1186/1471-2474-14-148, PubMed 23622053
  45. Johnsen LG, Brinckmann P, Hellum C, Rossvoll I, Leivseth G (2013)
    Segmental mobility, disc height and patient-reported outcomes after surgery for degenerative disc disease: a prospective randomised trial comparing disc replacement and multidisciplinary rehabilitation
    Bone Joint J, 95-B (1), 81-9
    DOI 10.1302/0301-620X.95B1.29829, PubMed 23307678
  46. Wilkens P, Scheel IB, Grundnes O, Hellum C, Storheim K (2013)
    Prognostic factors of prolonged disability in patients with chronic low back pain and lumbar degeneration in primary care: a cohort study
    Spine (Phila Pa 1976), 38 (1), 65-74
    DOI 10.1097/BRS.0b013e318263bb7b, PubMed 22718223
  47. Hellum C, Berg L, Gjertsen Ø, Johnsen LG, Neckelmann G, Storheim K, Keller A, Grundnes O, Espeland A, Norwegian Spine Study Group (2012)
    Adjacent level degeneration and facet arthropathy after disc prosthesis surgery or rehabilitation in patients with chronic low back pain and degenerative disc: second report of a randomized study
    Spine (Phila Pa 1976), 37 (25), 2063-73
    DOI 10.1097/BRS.0b013e318263cc46, PubMed 22706091
  48. Berg L, Gjertsen O, Hellum C, Neckelmann G, Johnsen LG, Eide GE, Espeland A (2012)
    Reliability of change in lumbar MRI findings over time in patients with and without disc prosthesis--comparing two different image evaluation methods
    Skeletal Radiol, 41 (12), 1547-57
    DOI 10.1007/s00256-012-1394-5, PubMed 22430564
  49. Hellum C, Johnsen LG, Gjertsen Ø, Berg L, Neckelmann G, Grundnes O, Rossvoll I, Skouen JS, Brox JI, Storheim K, Norwegian Spine Study Group (2012)
    Predictors of outcome after surgery with disc prosthesis and rehabilitation in patients with chronic low back pain and degenerative disc: 2-year follow-up
    Eur Spine J, 21 (4), 681-90
    DOI 10.1007/s00586-011-2145-3, PubMed 22246644
  50. Berg L, Neckelmann G, Gjertsen O, Hellum C, Johnsen LG, Eide GE, Espeland A (2011)
    Reliability of MRI findings in candidates for lumbar disc prosthesis
    Neuroradiology, 54 (7), 699-707
    DOI 10.1007/s00234-011-0963-y, PubMed 21947249
  51. Hellum C, Johnsen LG, Storheim K, Nygaard OP, Brox JI, Rossvoll I, Rø M, Sandvik L, Grundnes O, Norwegian Spine Study Group (2011)
    Surgery with disc prosthesis versus rehabilitation in patients with low back pain and degenerative disc: two year follow-up of randomised study
    BMJ, 342, d2786
    DOI 10.1136/bmj.d2786, PubMed 21596740
  52. Wilkens P, Scheel IB, Grundnes O, Hellum C, Storheim K (2010)
    Effect of glucosamine on pain-related disability in patients with chronic low back pain and degenerative lumbar osteoarthritis: a randomized controlled trial
    JAMA, 304 (1), 45-52
    DOI 10.1001/jama.2010.893, PubMed 20606148
  53. HELLUM C (1962)
    [Habitual luxation of the patella operated on by the Krogius method]
    Tidsskr Nor Laegeforen, 82, 687-9
    PubMed 13906317
  54. Terjesen T, Hellum C (1998)
    [Femoral shortening osteotomy for chronic hip dislocation in patients with cerebral palsy]
    Tidsskr Nor Laegeforen, 118 (18), 2773-6
    PubMed 9748806
  55. Reikerås O, Hellum C (1981)
    Fractures in children with myelomeningocele
    Arch Orthop Trauma Surg (1978), 98 (1), 25-8
    DOI 10.1007/BF00389706, PubMed 7235874
  56. Reigstad A, Hellum C (1980)
    Volkmann's ischaemic contracture of the forearm
    Injury, 12 (2), 148-50
    DOI 10.1016/0020-1383(80)90140-0, PubMed 7203636
  57. Bjerkreim I, Hellum C (1983)
    Femur lengthening using the Wagner technique
    Acta Orthop Scand, 54 (2), 263-6
    DOI 10.3109/17453678308996567, PubMed 6846004
  58. Hellum C, Vainio K (1968)
    Arthroplasty of the metacarpophalangeal joints in rheumatoid arthritis with transposition of the interosseus muscles
    Scand J Plast Reconstr Surg, 2 (2), 139-43
    DOI 10.3109/02844316809010496, PubMed 5733936
  59. Hellum C (1971)
    [Wrist operations in rheumatoid polyarthritis]
    Nord Med, 85 (12), 385
    PubMed 5574975
  60. Hellum C (1973)
    [Surgical treatment of periarticular diseases]
    Tidsskr Nor Laegeforen, 93 (32), 2360-4
    PubMed 4771923
  61. Reigstad A, Hetland KR, Hellum C (1985)
    [Replantation of the forearm]
    Tidsskr Nor Laegeforen, 105 (11), 731-4
    PubMed 4012678
  62. Orstavik KH, Tangsrud SE, Nordshus T, Finnanger AM, Hellum C, Gjessing E (1992)
    Orofaciodigital syndrome type I in a girl with unilateral tibial pseudarthrosis
    J Med Genet, 29 (11), 827-30
    DOI 10.1136/jmg.29.11.827, PubMed 1453437
  63. Austevoll IM, Storheim K, Hellum C, NORDSTEN-DS Investigators (2021)
    Transfer of Fresh versus Frozen Embryos in Ovulatory Women (vol 378, pg 126, 2018)
    N. Engl. J. Med., 385 (19), 1824
    DOI 10.1056/NEJMx190017

 
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