Publication list - Publika - Scientific publications from Oslo University Hospital

Publications by Christian Hellum

60 publications found

Original articles

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

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 (in press)
DOI 10.1007/s00586-024-08210-z, PubMed 38528161

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 (in press)
DOI 10.1007/s00586-024-08137-5, PubMed 38386059

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 (in press)
DOI 10.1016/j.spinee.2024.01.010, PubMed 38266826

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Reigstad A, Hetland KR, Hellum C (1985)
[Replantation of the forearm]
Tidsskr Nor Laegeforen, 105 (11), 731-4
PubMed 4012678

Bjerkreim I, Hellum C (1983)
Femur lengthening using the Wagner technique
Acta Orthop Scand, 54 (2), 263-6
DOI 10.3109/17453678308996567, PubMed 6846004

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

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

Hellum C (1973)
[Surgical treatment of periarticular diseases]
Tidsskr Nor Laegeforen, 93 (32), 2360-4
PubMed 4771923

Hellum C (1971)
[Wrist operations in rheumatoid polyarthritis]
Nord Med, 85 (12), 385
PubMed 5574975

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

HELLUM C (1962)
[Habitual luxation of the patella operated on by the Krogius method]
Tidsskr Nor Laegeforen, 82, 687-9
PubMed 13906317