Publications 2022

Boye K, Lobmaier I, Kobbeltvedt MR, Thorkildsen J, Taksdal I, Bjerkehagen B, Bruland ØS, Zaikova O, Sundby Hall K, Hompland I (2022)
Real-world evidence on perioperative chemotherapy in localized soft tissue sarcoma of the extremities and trunk wall; a population-based study
Acta Oncol, 61 (7), 793-800
DOI 10.1080/0284186X.2022.2082259, PubMed 35698755

Olsen OG, Thorkildsen RD, Zaikova O, Lobmaier IVK, Taksdal I, Røkkum M (2022)
A woman in her fifties with a lump in the palm of her hand
Tidsskr Nor Laegeforen, 142 (12)
DOI 10.4045/tidsskr.21.0830, PubMed 36066222

Publications 2021

van Atteveld JE, Mulder RL, van den Heuvel-Eibrink MM, Hudson MM, Kremer LCM, Skinner R, Wallace WH, Constine LS, Higham CE, Kaste SC, Niinimäki R, Mostoufi-Moab S, Alos N, Fintini D, Templeton KJ, Ward LM, Frey E, Franceschi R, Pavasovic V, Karol SE, Amin NL, Vrooman LM, Harila-Saari A, Demoor-Goldschmidt C, Murray RD et al. (2021)
Bone mineral density surveillance for childhood, adolescent, and young adult cancer survivors: evidence-based recommendations from the International Late Effects of Childhood Cancer Guideline Harmonization Group
Lancet Diabetes Endocrinol, 9 (9), 622-637
DOI 10.1016/S2213-8587(21)00173-X, PubMed 34339631

Publications 2020

Thorkildsen J, Norum OJ, Myklebust TA, Zaikova O (2020)
Chondrosarcoma local recurrence in the Cancer Registry of Norway cohort (1990-2013): Patterns and impact
J Surg Oncol, 123 (2), 510-520
DOI 10.1002/jso.26308, PubMed 33314135

Thorkildsen J, Taksdal I, Bjerkehagen B, Norum OJ, Myklebust TA, Zaikova O (2020)
Risk stratification for central conventional chondrosarcoma of bone: A novel system predicting risk of metastasis and death in the Cancer Registry of Norway cohort
J Surg Oncol, 121 (7), 1115-1125
DOI 10.1002/jso.25883, PubMed 32141094

Publications 2019

Papworth KE, Arroyo VM, Styring E, Zaikova O, Melin BS, Lupo PJ (2019)
Soft-tissue sarcoma in adolescents and young adults compared with older adults: A report among 5000 patients from the Scandinavian Sarcoma Group Central Register
Cancer, 125 (20), 3595-3602
DOI 10.1002/cncr.32367, PubMed 31287163

Thorkildsen J, Taksdal I, Bjerkehagen B, Haugland HK, Børge Johannesen T, Viset T, Norum OJ, Bruland Ø, Zaikova O (2019)
Chondrosarcoma in Norway 1990-2013; an epidemiological and prognostic observational study of a complete national cohort
Acta Oncol, 58 (3), 273-282
DOI 10.1080/0284186X.2018.1554260, PubMed 30632866

Publications 2018

Berner K, Zaikova O, Johannesen TB, Hall KS, Bruland ØS (2018)
Validity and completeness of the Scandinavian Sarcoma Group Central Register by comparison with a nationwide cohort of patients with osteosarcoma in Norway
J Surg Oncol, 118 (1), 246-247
DOI 10.1002/jso.25137, PubMed 30208205

Casali PG, Abecassis N, Aro HT, Bauer S, Biagini R, Bielack S, Bonvalot S, Boukovinas I, Bovee JVMG, Brodowicz T, Broto JM, Buonadonna A, De Álava E, Dei Tos AP, Del Muro XG, Dileo P, Eriksson M, Fedenko A, Ferraresi V, Ferrari A, Ferrari S, Frezza AM, Gasperoni S, Gelderblom H, Gil T et al. (2018)
Soft tissue and visceral sarcomas: ESMO-EURACAN Clinical Practice Guidelines for diagnosis, treatment and follow-up
Ann Oncol, 29 (Suppl 4), iv51-iv67
DOI 10.1093/annonc/mdy096, PubMed 29846498

Casali PG, Abecassis N, Aro HT, Bauer S, Biagini R, Bielack S, Bonvalot S, Boukovinas I, Bovee JVMG, Brodowicz T, Broto JM, Buonadonna A, De Álava E, Dei Tos AP, Del Muro XG, Dileo P, Eriksson M, Fedenko A, Ferraresi V, Ferrari A, Ferrari S, Frezza AM, Gasperoni S, Gelderblom H, Gil T et al. (2018)
Gastrointestinal stromal tumours: ESMO-EURACAN Clinical Practice Guidelines for diagnosis, treatment and follow-up
Ann Oncol, 29 (Suppl 4), iv68-iv78
DOI 10.1093/annonc/mdy095, PubMed 29846513

Casali PG, Abecassis N, Aro HT, Bauer S, Biagini R, Bielack S, Bonvalot S, Boukovinas I, Bovee JVMG, Brodowicz T, Broto JM, Buonadonna A, De Álava E, Dei Tos AP, Del Muro XG, Dileo P, Eriksson M, Fedenko A, Ferraresi V, Ferrari A, Ferrari S, Frezza AM, Gasperoni S, Gelderblom H, Gil T et al. (2018)
Gastrointestinal stromal tumours: ESMO-EURACAN Clinical Practice Guidelines for diagnosis, treatment and follow-up
Ann Oncol, 29 (Suppl 4), iv267
DOI 10.1093/annonc/mdy320, PubMed 30188977

Casali PG, Abecassis N, Aro HT, Bauer S, Biagini R, Bielack S, Bonvalot S, Boukovinas I, Bovee JVMG, Brodowicz T, Broto JM, Buonadonna A, De Álava E, Dei Tos AP, Del Muro XG, Dileo P, Eriksson M, Fedenko A, Ferraresi V, Ferrari A, Ferrari S, Frezza AM, Gasperoni S, Gelderblom H, Gil T et al. (2018)
Soft tissue and visceral sarcomas: ESMO-EURACAN Clinical Practice Guidelines for diagnosis, treatment and follow-up
Ann Oncol, 29 (Suppl 4), iv268-iv269
DOI 10.1093/annonc/mdy321, PubMed 30285214

Casali PG, Bielack S, Abecassis N, Aro HT, Bauer S, Biagini R, Bonvalot S, Boukovinas I, Bovee JVMG, Brennan B, Brodowicz T, Broto JM, Brugières L, Buonadonna A, De Álava E, Dei Tos AP, Del Muro XG, Dileo P, Dhooge C, Eriksson M, Fagioli F, Fedenko A, Ferraresi V, Ferrari A, Ferrari S et al. (2018)
Bone sarcomas: ESMO-PaedCan-EURACAN Clinical Practice Guidelines for diagnosis, treatment and follow-up
Ann Oncol, 29 (Suppl 4), iv79-iv95
DOI 10.1093/annonc/mdy310, PubMed 30285218

Sundby Hall K, Bruland ØS, Bjerkehagen B, Zaikova O, Engellau J, Hagberg O, Hansson L, Hagberg H, Ahlström M, Knobel H, Papworth K, Zemmler M, Goplen D, Bauer HCF, Eriksson M (2018)
Adjuvant chemotherapy and postoperative radiotherapy in high-risk soft tissue sarcoma patients defined by biological risk factors-A Scandinavian Sarcoma Group study (SSG XX)
Eur J Cancer, 99, 78-85
DOI 10.1016/j.ejca.2018.05.011, PubMed 29929092

Zaikova O, Berner K (2018)
Validity and completeness of the Scandinavian Sarcoma Group Central Register by comparison with a nationwide cohort of patients with osteosarcoma in Norway
J Surg Oncol, 118 (1), 248
DOI 10.1002/jso.25135, PubMed 30208204

Publications 2017

Behjati S, Tarpey PS, Haase K, Ye H, Young MD, Alexandrov LB, Farndon SJ, Collord G, Wedge DC, Martincorena I, Cooke SL, Davies H, Mifsud W, Lidgren M, Martin S, Latimer C, Maddison M, Butler AP, Teague JW, Pillay N, Shlien A, McDermott U, Futreal PA, Baumhoer D, Zaikova O et al. (2017)
Recurrent mutation of IGF signalling genes and distinct patterns of genomic rearrangement in osteosarcoma
Nat Commun, 8, 15936
DOI 10.1038/ncomms15936, PubMed 28643781

Boye K, Jebsen NL, Zaikova O, Knobel H, Løndalen AM, Trovik CS, Monge OR, Hall KS (2017)
Denosumab in patients with giant-cell tumor of bone in Norway: results from a nationwide cohort
Acta Oncol, 56 (3), 479-483
DOI 10.1080/0284186X.2016.1278305, PubMed 28105885

Namløs HM, Zaikova O, Bjerkehagen B, Vodák D, Hovig E, Myklebost O, Boye K, Meza-Zepeda LA (2017)
Use of liquid biopsies to monitor disease progression in a sarcoma patient: a case report
BMC Cancer, 17 (1), 29
DOI 10.1186/s12885-016-2992-8, PubMed 28061772

Trovik C, Bauer HCF, Styring E, Sundby Hall K, Vult Von Steyern F, Eriksson S, Johansson I, Sampo M, Laitinen M, Kalén A, Jónsson H, Jebsen N, Eriksson M, Tukiainen E, Wall N, Zaikova O, Sigurðsson H, Lehtinen T, Bjerkehagen B, Skorpil M, Egil Eide G, Johansson E, Alvegard TA (2017)
The Scandinavian Sarcoma Group Central Register: 6,000 patients after 25 years of monitoring of referral and treatment of extremity and trunk wall soft-tissue sarcoma
Acta Orthop, 88 (3), 341-347
DOI 10.1080/17453674.2017.1293441, PubMed 28266233

Publications 2016

Hesla AC, Tsagozis P, Jebsen N, Zaikova O, Bauer H, Brosjö O (2016)
Improved Prognosis for Patients with Ewing Sarcoma in the Sacrum Compared with the Innominate Bones: The Scandinavian Sarcoma Group Experience
J Bone Joint Surg Am, 98 (3), 199-210
DOI 10.2106/JBJS.O.00362, PubMed 26842410

Lorenz S, Barøy T, Sun J, Nome T, Vodák D, Bryne JC, Håkelien AM, Fernandez-Cuesta L, Möhlendick B, Rieder H, Szuhai K, Zaikova O, Ahlquist TC, Thomassen GO, Skotheim RI, Lothe RA, Tarpey PS, Campbell P, Flanagan A, Myklebost O, Meza-Zepeda LA (2016)
Unscrambling the genomic chaos of osteosarcoma reveals extensive transcript fusion, recurrent rearrangements and frequent novel TP53 aberrations
Oncotarget, 7 (5), 5273-88
DOI 10.18632/oncotarget.6567, PubMed 26672768

Strøm TM, Skeie AT, Lobmaier IK, Zaikova O (2016)
Giant Cell Tumor: A Rare Condition in the Immature Skeleton-A Retrospective Study of Symptoms, Treatment, and Outcome in 16 Children
Sarcoma, 2016, 3079835
DOI 10.1155/2016/3079835, PubMed 27999474

Publications 2015

Berner K, Hall KS, Monge OR, Weedon-Fekjær H, Zaikova O, Bruland ØS (2015)
Prognostic factors and treatment results of high-grade osteosarcoma in norway: a scope beyond the "classical" patient
Sarcoma, 2015, 516843
DOI 10.1155/2015/516843, PubMed 25784831

Switlyk MD, Kongsgaard U, Skjeldal S, Hald JK, Hole KH, Knutstad K, Zaikova O (2015)
Prognostic factors in patients with symptomatic spinal metastases and normal neurological function
Clin Oncol (R Coll Radiol), 27 (4), 213-21
DOI 10.1016/j.clon.2015.01.002, PubMed 25624156

Tsagozis P, Bauer HC, Styring E, Trovik CS, Zaikova O, Brosjö O (2015)
Prognostic factors and follow-up strategy for superficial soft-tissue sarcomas: Analysis of 622 surgically treated patients from the scandinavian sarcoma group register
J Surg Oncol, 111 (8), 951-6
DOI 10.1002/jso.23927, PubMed 26040651

Zaikova O, Sundby Hall K, Styring E, Eriksson M, Trovik CS, Bergh P, Bjerkehagen B, Skorpil M, Weedon-Fekjaer H, Bauer HC (2015)
Referral patterns, treatment and outcome of high-grade malignant bone sarcoma in Scandinavia--SSG Central Register 25 years' experience
J Surg Oncol, 112 (8), 853-60
DOI 10.1002/jso.24074, PubMed 26482729

Publications 2014

Ratasvuori M, Wedin R, Hansen BH, Keller J, Trovik C, Zaikova O, Bergh P, Kalen A, Laitinen M (2014)
Prognostic role of en-bloc resection and late onset of bone metastasis in patients with bone-seeking carcinomas of the kidney, breast, lung, and prostate: SSG study on 672 operated skeletal metastases
J Surg Oncol, 110 (4), 360-5
DOI 10.1002/jso.23654, PubMed 24889389

Switlyk MD, Bruland ØS, Skjeldal S, Hald JK, Seierstad T, Zaikova O (2014)
Radiotherapy for spinal metastases from breast cancer with emphasis on local disease control and pain response using repeated MRI
J Bone Oncol, 3 (1), 5-9
DOI 10.1016/j.jbo.2014.02.003, PubMed 26909292

Publications 2013

Ratasvuori M, Wedin R, Keller J, Nottrott M, Zaikova O, Bergh P, Kalen A, Nilsson J, Jonsson H, Laitinen M (2013)
Insight opinion to surgically treated metastatic bone disease: Scandinavian Sarcoma Group Skeletal Metastasis Registry report of 1195 operated skeletal metastasis
Surg Oncol, 22 (2), 132-8
DOI 10.1016/j.suronc.2013.02.008, PubMed 23562148

Publications 2012

Switlyk MD, Hole KH, Skjeldal S, Hald JK, Knutstad K, Seierstad T, Zaikova O (2012)
MRI and neurological findings in patients with spinal metastases
Acta Radiol, 53 (10), 1164-72
DOI 10.1258/ar.2012.120442, PubMed 23047848

Weiss RJ, Ekström W, Hansen BH, Keller J, Laitinen M, Trovik C, Zaikova O, Wedin R (2012)
Pathological subtrochanteric fractures in 194 patients: a comparison of outcome after surgical treatment of pathological and non-pathological fractures
J Surg Oncol, 107 (5), 498-504
DOI 10.1002/jso.23277, PubMed 23070922

Publications 2011

Wedin R, Hansen BH, Laitinen M, Trovik C, Zaikova O, Bergh P, Kalén A, Schwarz-Lausten G, Vult von Steyern F, Walloe A, Keller J, Weiss RJ (2011)
Complications and survival after surgical treatment of 214 metastatic lesions of the humerus
J Shoulder Elbow Surg, 21 (8), 1049-55
DOI 10.1016/j.jse.2011.06.019, PubMed 21982491

Zaikova O, Fosså SD, Bruland OS, Giercksky KE, Sandstad B, Skjeldal S (2011)
Radiotherapy or surgery for spine metastases?
Acta Orthop, 82 (3), 365-71
DOI 10.3109/17453674.2011.566142, PubMed 21434789

Publications 2010

Zaikova O (2010)
A study of spinal metastatic disease: epidemiology, treatment and outcome
In Series of dissertations submitted to the Faculty of Medicine, University of Oslo, Unipub, Oslo, no. 1043, 1 b. (flere pag.)
BIBSYS 102680957, ISBN 978-82-8264-115-9

Zaikova O, Fosså SD, Kongsgaard U, Kvaløy S, Giercksky KE, Skjeldal S (2010)
Pain after palliative radiotherapy for spine metastases
Clin Oncol (R Coll Radiol), 22 (10), 828-36
DOI 10.1016/j.clon.2010.03.008, PubMed 20363110

Publications 2009

Zaikova O, Giercksky KE, Fosså SD, Kvaløy S, Johannesen TB, Skjeldal S (2009)
A population-based study of spinal metastatic disease in South-East Norway
Clin Oncol (R Coll Radiol), 21 (10), 753-9
DOI 10.1016/j.clon.2009.09.023, PubMed 19850454

Publications 2008

Engström K, Bergh P, Gustafson P, Hultborn R, Johansson H, Löfvenberg R, Zaikova O, Trovik C, Wahlström O, Bauer HC (2008)
Liposarcoma: outcome based on the Scandinavian Sarcoma Group register
Cancer, 113 (7), 1649-56
DOI 10.1002/cncr.23784, PubMed 18720363