​
1. Jönsson B, Strömqvist B. Ländryggskirurgi: Registret kan räddas. Ortopediskt Magasin 1998; (4): 6-9.

2. Jönsson B, Strömqvist B. Significance of a persistent positive straight leg raising test after lumbar disc surgery. J Neurosurg 1999; 91: 50-3.

3. Strömqvist B, Jönsson B, Zanoli G. The significance of VAS in evaluating pain outcomes of spine surgery. A prospective, consecutive study of 755 operated patients. Eur Spine J 1999; 8(Suppl 1): 14-5.

4 Strömqvist B, Jönsson B. Det nationella registret blir alltmer fullständigt. Dagens Medicin 2000; Nr 20: 55.

5. Svensk Ryggkirurgisk Förenings registergrupp. Uppföljning av ländryggskirurgi i Sverige 1999. Rapport. 21 s. 2000.

6. Zanoli G, Strömqvist B. Lessons learned searching for a HRQoL instrument to assess the results of treatment in persons with lumbar disorders. Spine 2000; 25: 3178-85.

7. Padua R, Strömqvist B, Jönsson B, Romanini E, Zanoli G. Imparare dagli errori del passato in chirurgia vertebrale: registro nazionale svedese e studi multicentrici italiani. Ital J Orthop Trauma 2000; 26: S116-23.

8. Strömqvist B, Jönsson B, Fritzell P, Hägg O, Larsson B-E, Lind B. The Swedish national register for lumbar spine surgery. Acta Orthop Scand 2001; 72: 99-106.

9. Zanoli G, Strömqvist B, Jönsson B. Visual analog scales for interpretation of back and eg pain intensity in patients operated for degenerative lumbar spine disorders. Spine 2001; 26: 2375-80.

10. Svensk Ryggkirurgisk Förenings registergrupp. Uppföljning av ländryggskirurgi i Sverige 2000. Rapport. 21 s. 2001.

11. Svensk Ryggkirurgisk Förenings registergrupp. The national Swedish register for lumbar spine surgery. Report 2002. Rapport för 2001. 30 s. 2002.

12. Strömqvist B. Evidence-based lumbar spine surgery. The role of national registration. Acta Orthop Scand 2002; 73(Suppl 305): 34-9.

13. Zanoli G, Strömqvist B, Jönsson B, Padua R, Romanini E. Pain in low-back pain. Problems measuring outcomes in musculoskeletal disorders. Acta Orthop Scand 2002;73.(Suppl 305): 54–7.

14. Svensk Ryggkirurgisk Förenings registergrupp. Uppföljning av ländryggskirurgi i Sverige 2002. Rapport. 26 s. 2003.

15. Svensk Ryggkirurgisk Förenings registergrupp. Uppföljning av ländryggskirurgi i Sverige 2003. Rapport. 24 s. 2004.

16. Jansson K-Å. On lumbar spinal stenosis and disc herniation surgery. Thesis, Dept Surg Sciences, Section Orthopedics, Karolinska Institutet, Stockholm, 2005.

17. Jansson K-Å, Németh G, Granath F et al. Health-related quality of life in patients before and after surgery for a herniated lumbar disc. J Bone Joint Surg 2005; 87-B: 959-64.

18. Zanoli G. Outcome assessment in lumbar spine surgery. Thesis, Dept Orthopedics,Lund University 2005.

19. Fritzell P. Fusion as treatment for chronic low back pain – existing evidence, the scientific frontier and research strategies. Eur Spine J 2005; 14: 519-20.

20. Svensk Ryggkirurgisk Förenings registergrupp. Uppföljning av ländryggskirurgi i Sverige 2004. Rapport. 24 s. 2005.
21. Fritzell P, Strömqvist B, Hägg O. A practical approach to spine registers in Europe. The Swedish experience. Eur Spine J 2006; 15:257-S63.

22. Strömqvist B, Fritzell P, Hägg O, Jönsson B. Swedish Society of Spinal Surgeons. One-year report from the Swedish National Spine Register. Swedish Society of Spinal Surgeons. Acta Orthop 2005; 76(Suppl 319: 1-24).

23. Strömqvist B, Fritzell P, Hägg O, Jönsson B. Lägesrapport om svenska nationella ryggregistret. Ortopediskt Magasin 2006; (2): 9-10,12.

24. Svensk Ryggkirurgisk Förenings registergrupp. Uppföljning av ländryggskirurgi i Sverige 2005. Rapport 2006.

25. Zanoli G, Nilsson LT, Strömqvist B. Reliability of the prospective data collection protocol of the Swedish Spine Register. Test-retest analysis of 119 patients. Acta Orthop 2006; 77: 662-9.

26. Zanoli G, Strömqvist B, Jönsson B. SF-36 scores in degenerative lumbar spine disorders: analysis of prospective data from 451 patients. Acta Orthop 2006; 77:298-306.

27. Strömqvist B, Hedlund R, Jönsson B, Tullberg t. Ländryggens sjukdomar. Läkartidningen 2007; 104: 1498-1502.

28. Strömqvist F, Ahmad M, Strömqvist F, Hildingsson C, Jönsson B. Lumbar disc herniation surgery and gender-related differences. Touch Briefings 2008; 3(1): 61-2.

29. Strömqvist F, Ahmad M, Hildingsson C, Jönsson B, Strömqvist B. Gender differences in lumbar disc herniation surgery. Acta Orthop 2008; 79(5): 643-9.

30. Strömqvist B, Fritzell P, Hägg O, Jönsson B. Swedish Society of Spinal Surgeons. The Swedish Spine Register: development, design and utility. Eur Spine J 2009; 18(Suppl 3): S294-S304.

31. Strömqvist B, Fritzell P, Hägg O, Jönsson B. Svensk Ryggkirurgisk Förening. Uppföljning av ländryggskirurgi i Sverige. Rapport år 2009. 51 s. ISBN 978-91-978553-0-3.

32. Strömqvist B, Fritzell P, Hägg O, Jönsson B. Swedish Society of Spinal Surgeons. The Swedish Spine Register. The 2009 report. 58 pp. ISBN 978-91-978553-1-0.

33. Strömqvist F, Jönsson B, Strömqvist B. Dural lesions in lumbar disc herniation surgery: incidence, risk factors, and outcome. Eur Spine J 2010; 19: 439-42.

34. Sandén B, Försth P, Michaëlsson K. Smokers show less improvement than nonsmokers two years after surgery for lumbar spinal stenosis: a study of 4555 patients from the Swedish spine register. Spine 2011; 36(13): 1059-64.

35. Fritzell P, Brisby H, Hägg O. The national quality regristries: Long and complicated way if the medical profession doesn’t see the advantages. Läkartidn 2011; 108(9):478-9.

36. Fritzell P, Berg S, Borgstrom F, Tullberg T, Tropp H. Cost effectiveness of disc prosthesis versus lumbar fusion in patients with chronic low back pain: randomized controlled trial with 2-year follow-up. Eur Spine J. 2011Jul;20(7):1001-11.

37. Ohrn A, Olai A, Rutberg H, Nilsen P, Tropp H. Adverse events in spine surgery in Sweden: a comparison of patient claims data and national quality register (Swespine) data. Acta Orthop 2011; 82(6): 727-31.

38. Strömqvist B, Fritzell P, Hägg O, Jönsson B, Sandén B. Swespine – en lägesrapport. Långvarig smärta och rökning ger dåligt resultat. Ortopediskt Magasin 2012; (2): 28-30.

39. Strömqvist F, Jönsson B, Strömqvist B. Dural lesionns in decompression for lumbar spinal stenosis – incidence, risk factors and effect on outcome. Eur Spine J 2012; 21(5): 825-8.

40. Fritzell P, Ohlin O, Borgström F. Cost-effectiveness of Balloon Kyphoplasty (BKP) vs. Standard medical treatment in patients with osteoporotic vertebral compression  fracture - a Swedish multicenter RCT with 2-year follow up. Spine 2011; 36(26):2243-51.

41. Strömqvist B, Fritzell P, Hägg O, Jönsson B, Sandén B. Swespine – en lägesrapport. Långvarig smärta och rökning ger dåligt resultat. Ortopediskt Magasin 2012; (2): 28-30.

42. Knutsson B, Michaëlsson K, Sandén B. Obesity is associated with inferior results after surgery for lumbar spinal stenosis: A study of 2633 patients from the Swedish Spine Register. Spine 2013; 38(5): 435-41.

43. Strömqvist B, Fritzell P, Hägg O, Jönsson B. Swedish Society of Spinal Surgeons Swespine. The Swedish Spine Register. The 2011 Report. ISBN 978-91-979378-8-7.

44. Fritzell P, Hägg O, Jönsson B, Strömqvist B. Surgery for lumbar disc herniation – factors of importance for outcome after 1 and 2 years. Analysis of data from Swespine– the Swedish national spine register. Spine. In press.

45. Sigmundsson FG, Kang XP, Jönsson B, Strömqvist B. Prognostic factors in lumbar spinal stenosis surgery – A prospective study of imaging and patient related factors in 109 patients operated on by decompression. Acta Orthop 2012; 83(5): 536-42.

46. Robinson Y, Michaëlsson K, Sandén B. Instrumentation in lumbar fusion improves back pain but not quality of life 2 years after surgery. A study of 1,310 patients with degenerative disc disease from the Swedish Spine Register SWESPINE. Acta Orthop 2013; 84(1):7-11.

47. Strömqvist B, Berg S Gerdhem P, Johnsson R, Möller A, Sahlstrand T, Ahmed S, Tullberg T. X-Stop versus decompressive surgery for lumbar neurogenic intermittent claudication – A randomized controlled trial with 2 years follow-up. Spine 2013; 38(17): 1436-42.

48. Sigmundsson FG, Jönsson B, Strömqvist B. The impact of pain on function and health related quality of life in lumbar spinal stenosis: A register study of 14.821 patients.Spine 2013; 38(15): E937-45

49. Strömqvist B, Fritzell P, Hägg O, Jönsson B. Swedish Society of Spinal Surgeons. Swespine: The Swedish Spine Register. The 2012 Report. Eur Spine J 2013; 22(4):953-74.

50. Sigmundsson FG, Jönsson B, Strömqvist B. Preoperative pain pattern predicts surgical outcome more than type of surgery in patients with central spinal stenosis without concomitant spondylolisthesis: A register study of 9,051 patients. Spine 2014; 39(3):E199-210.

51. Strömqvist B, Fritzell P, Hägg O, Jönsson B. Svensk Ryggkirurgisk Förening. Uppföljning av ländryggskirurgi i Sverige. Årsrapport 2012. 63 s. 2013. ISBN 978-91-980722-3-5. Strömqvist B. In response. Spine 2013; 38(17): 1526.

52. Knutsson B, Michaëlsson K, Sandén B. Obese patients report modest weight loss after surgery for lumbar spinal stenosis: a study from the Swedish spine register. Spine 2014; 39(20):1725-30.

53. Fritzell P, Knutsson B, Sandén B, Strömqvist B, Hägg O. Recurrent versus primary lumbar disc herniation surgery: Patient-reported outcomes in the Swedish spine register Swespine. Clin Orthop Relat Res 2014. Apr 8

54. Hooff ML1,2, Jacobs WC3, Willems PC4, Wouters MW2,5, Kleuver Md1,6, Peul WC3, Ostelo RW7, Evidence and practice in spine registries.Fritzell P8. Acta Orthop. 2015 Oct;86(5):534-44. doi: 10.3109/17453674.2015.1043174.

55. Clement RC, Welander A, Stowell C, Cha TD, Chen JL, Davies M, Fairbank JC, Foley KT, Gehrchen M, Hagg O, Jacobs WC, Kahler R, Khan SN, Lieberman IH, Morisson B, Ohnmeiss DD, Peul WC, Shonnard NH, Smuck MW, Solberg TK, Stromqvist BH, Hooff ML, Wasan AD, Willems PC, Yeo W, Fritzell P. A proposed set of metrics for standardized outcome reporting in the management of low back pain.

56. Strömqvist F, Strömqvist B, Jönsson B, Karlsson MK. Gender differences in patients scheduled for lumbar disc herniation surgery: a National Register Study including 15,631 operations.Eur Spine J. 2015 Jun 7. [Epub ahead of print]

57. Kjellby-Wendt G, Styf J. Early active training after lumbar discectomy. A prospective, randomized, and controlled study. Spine 1998;23(21):2345-51.

58. Kjellby-Wendt G, Styf J, Carlsson SG. Early active rehabilitation after surgery for lumbar disc herniation: a prospective, randomized study of psychometric assessment in 50 patients. Acta Orthop Scand 2001;72(5):518-24.

59. Kjellby-Wendt G, Carlsson SG, Styf J. Results of early active rehabilitation 5-7 years after surgical treatment for lumbar disc herniation. J Spinal Disord Tech 2002;15(5):404-9.

60. Millisdotter M, Strömqvist B. Early neuromuscular customized training after surgery for lumbar disc herniation: a prospective controlled study. Eur Spine J 2007;16(1):19-26.

61. Johansson AC, Linton SJ, Bergkvist L, Nilsson O, Cornefjord M. Clinical-based training in comparison to home-based training after first-time lumbar disc surgery: an randomised controlled trial. Eur Spine J.2009;18(3):398-409.

62. Abbott AD, Tyni-Lenné R, Hedlund R. Early rehabilitation targeting cognition, behaviour and motor function after lumbar fusion. A randomized controlled trial. Spine (2010), Apr 15;35(8):848-857.

63. Abbott AD, Tyni-Lenné R, Hedlund R. The influence of psychological factors on pre-operative levels of pain intensity, disability and HRQOL in lumbar spinal fusion surgery patients. Physiotherapy (2010), Sep;96(3):213-21.

64. Abbott AD, Tyni-Lenné R, Hedlund R. Leg pain and psychological variables predict outcome 2-3 years after lumber fusion surgery. Eur Spine J (2011) Oct;20(10):1626-34.

65. Abbott A, Halvorsen M, Dedering A. Is there a need for cervical collar usage post anterior cervical decompression and fusion? A randomized control pilot trial. Physiother Theory Pract. (2013) May;29(4):290-300

66. Abbott A, Gerdhem P. CONTRAIS: CONservative Treatment for Adolescent Idiopathic Scoliosis. A randomised controlled trial protocol. BMC Musculoskeletal Disorders. (2013) Sep 5:14(1):261.

67. Limbäck Svensson G, Kjellby Wendt G, Thomee R, Danielson E. Patients experience of health three years after structured physiotherapy or surgery for lumbar disc herniation. J Rehabil Med. (2013) mar; 45(3):293-9.

68. Svensson GL, Wendt GK, Thomee R. A structured physiotherapy treatment model can provide rapid relief to patients who qualify for lumbar disc surgery: a prospective cohort study. J Rehabil Med. (2014) Mar; 46(3):233-40.

69. Johanna Wibault, Birgitta Öberg, Åsa Dedering, Håkan Löfgren, Peter Zsigmond, Liselott Persson, Anneli Peolsson. Individual factors associated with neck disability in patients with cervical radiculopathy scheduled for surgery: a study on physical impairments, psychosocial factors, and life style habits. Eur Spine J (2014);23:599-605

70. Engquist M, Lofgren H, Oberg B, Holtz A, Peolsson A. Soderlund A, Vavruch L, Lind B. Surgery versus nonsurgical treatment of cervical radiculopathy: a prospective, randomized study comparing surgery plus physiotherapy with physiotherapy alone with a 2-year follow-up. Spine (2013); 38:1715-2.

71. Engquist M, Lofgren H, Oberg B, Holtz A, Peolsson A. Soderlund A, Vavruch L, Lind B. Factors affecting the outcome of surgical versus nonsurgical treatment of cervical radiculopathy - a randomized, controlled study. Spine. Submitted 2015.

72. Johanna Wibault, Birgitta Öberg, Åsa Dedering, Håkan Löfgren, Peter Zsigmond, Anneli Peolsson. Physiotherapy rehabilitation after surgery for cervical radiculopathy: outcomes at six months in a randomized clinical trial. Spine. Submitted 2015

73. Lindbäck Y, Tropp H, Enthoven P, Abbott A, Öberg B. Prepare: Pre-surgery physiotherapy for patients with specific low back pain: a randomized controlled trial protocol. BMC Musculoskeletal Disorders, Submitted 2015.

74. Cheng T, Gerdhem P. Outcome of surgery for degenerative lumbar scoliosis. An observational study using the Swedish Spine register. Accepted for publication in the European Spine Journal, Aug 5, 2017 [Epub ahead of print].

75. Strömqvist F, Strömqvist B, Jönsson B, Karlsson M: The outcome of lumbar disc herniation surgery is worse in old adults than in young adults Acta Orthop 2016 87(5): 516-21

76. Strömqvist F, Strömqvist B, Jönsson B, Karlsson M. Gender differences in the surgical treatment of lumbar disc herniation in elderly, Eur Spine J 2016; 25(11): 3528-35

77. Strömqvist F, Strömqvist B, Jönsson B, Karlsson M: Gender differences in patients scheduled for lumbar disc herniation surgery: a national register study including 15631 operations. Eur Spine J 2016 25(1): 1 -7

78. Sigmundsson FG, Strömqvist B, Jönsson B.  Determinants of patient satisfaction in surgery for lumbar spinal stenosis without concomitant spondylolisthesis.  Eur Spine J 2016 Eur Spine J. 2017 Feb;26(2):473-480.

79. Strömqvist F, Strömqvist B, Jönsson B, Gerdhem P, Karlsson M: Predictive outcome factors in the young patient treated with lumbar disc herniation surgery J Neurosurg Spine 2016 25(4): 448-55

80. Strömqvist F, Strömqvist B, Jönsson B, Karlsson M: Lumbar disc herniation surgery in children: outcome and gender differences. Eur Spine J 2016 25(2): 657-63

81. Strömqvist F, Strömqvist B, Jönsson B, Karlsson M: Inferior outcome of lumbar disc herniation surgery in women due to inferior preoperative status: A prospective study of 11237 patients. Spine 2016 41(15): 1247-52

82. Försth P, Ólafsson G, Carlsson T, Frost A, Borgström F, Fritzell P, Öhagen P, Michaëlsson K, Sandén B. A Randomized, Controlled Trial of Fusion Surgery for Lumbar Spinal Stenosis. N Engl J Med. 2016 Apr 14;374(15):1413-23.

83. Fritzell P, Hägg O, Gerdhem P, Abbott A, Songsong A, Parai C, Strömqvist B. The Swedish spine Register. The 2015 report. 2016: 1-49

84. Elkan P, Sjövie Hasserius J, Gerdhem P. Similar result after non-elective and elective surgery for lumbar disc herniation: an observational study based on the SweSpine register. Eur Spine J. 2016 May;25(5):1460-1466.

85. Endler P, Ekman P, Möller H, Gerdhem P. A prospective study on the outcome of non-instrumented posterolateral fusion, instrumented posterolateral fusion and interbody fusion in isthmic spondylolisthesis. Accepted for publication in JBJS-A, Sep 2016.

86. Theis JC, Grauers A, Diarbakerli E, Savvides P, Abbott A, Gerdhem P. An observational study on surgically treated adult idiopathic scoliosis patients' quality of life outcomes at 1- and 2-year follow-ups and comparison to controls. Scoliosis Spinal Disord. 2017 Apr 12;12:11.

87. Diarbakerli E, Grauers A, Gerdhem P. Population-based normative data for the Scoliosis Research Society 22r questionnaire in adolescents and adults, including a comparison with EQ-5D. Eur Spine J. 2017 Jun;26(6):1631-1637.

88. Elkan P, Sten-Linder M, Hedlund R, Willers U, Ponzer S, Gerdhem P. Markers of inflammation and fibrinolysis in relation to outcome after surgery for lumbar disc herniation. A prospective study on 177 patients. E Spine J 2016 Jan 25(1):186-191

89. Lindbäck Y, Tropp H, Enthoven P, Gerdle B, Abbott A, Öberg B. Association between pain sensitivity in the hand and outcomes after surgery in patients with lumbar disc herniation or spinal stenosis. Eur Spine J. 2017 Oct;26(10):2581-2588. 

90. Eneqvist T, Nemes S, Brisby H, Fritzell P, Garellick G, Rolfson O. Lumbar surgery prior to total hip arthroplasty is associated with worse patient-reported outcomes. Bone Joint J. 2017 Jun;99-B(6):759-765.

91. Oscar Solmell, Patrick Dahlemar Sterner, Svante Berg. Are there findings on MRI or on patient-reported back pain before surgery for lumbar disc herniation that can predict future progression of painful disc degeneration? Journal of spine. OAT ISSN: 2398-970X

92. Jonsson E, Olafsson G, Fritzell P, Hägg O, Borgström F. A Profile of Low Back Pain: Treatment and Costs Associated With Patients Referred to Orthopedic Specialists in Sweden. Spine (Phila Pa 1976). 2017 Sep 1;42(17):1302-1310.

93. Olafsson G, Jonsson E, Fritzell P, Hägg O, Borgström F. A health economic lifetime treatment pathway model for low back pain in Sweden. J Med Econ. 2017 Dec;20(12):1281-1289.

94. Olafsson G, Jonsson E, Fritzell P, Hägg O, Borgström F. Burden of Spinal Diseases: Results From Register Study In Sweden. Value Health. 2015 Nov;18(7):A642.

95. Strömqvist F, Strömqvist B, Jönsson B, Karlsson MK. Surgical treatment of lumbar disc herniation in different ages-evaluation of 11,237 patients. Spine J. 2017 Mar 20. pii: S1529-9430(17)30108-0.

96. Lumbar disc herniation surgery - Fredrik Strömqvist. Thesis. Department of Orthopedics, Clinical sciences, Lund University 2017. Faculty of Medicine Doctoral Dissertation Series 2017:70. ISBN 978-91-7619-450-8. ISSN 1652-8220.

97. Eneqvist T, Bülow E, Nemes S, Brisby H, Garellick G, Fritzell P, Rolfson O. Patients with a previous total hip replacement experience less reduction of back pain following lumbar back surgery. J Orthop Res . 2018 Sep;36(9):2484-2490

98. Lønne G, Fritzell P, Hägg O, Nordvall D, Gerdhem P, Lagerbäck T, Andersen M, Eiskjaer S, Gehrchen M, Jacobs W, van Hooff ML, Solberg TK. Lumbar spinal stenosis: comparison of surgical practice variation and clinical outcome in three national spine registries. Spine J. 2018 May 21

99. Olafsson G, Jonsson E, Fritzell P, Hägg O, Borgström F. Cost of low back pain: results from a national register study in Sweden. Eur Spine J. 2018 Aug 28.

100. Strömqvist F, Sigmundsson FG, Strömqvist B, Jönsson B, Karlsson MK. Incidental Durotomy in Degenerative Lumbar Spine Surgery - A register study of 64,431 operations. Spine J. 2018 Aug 30. [Epub ahead of print]

101. Robinson Y, Sandén B, Snellman G, Triebel J, Strömqvist F. Spine registries generate patient-benefit in the century of big data: Author response to: Big data analysis reveals the truth of lumbar fusion: gender differences. Spine J. 2017 May;17(5):755-756.

102. Triebel J, Snellman G, Sandén B, Strömqvist F, Robinson Y. Women do not fare worse than men after lumbar fusion surgery: Two-year follow-up results from 4,780 prospectively collected patients in the Swedish National Spine Register with lumbar degenerative disc disease and chronic low back pain. Spine J. 2017 May;17(5):656-662.

103. Lindbäck Y, Tropp H, Enthoven P, Gerdle B, Abbott A, Öberg, B. Altered somatosensory profile according to quantitative sensory testing in patients with degenerative lumbar spine disorders scheduled for surgery. BMC Musculoskeletal Disorders, (2017) Jun 17;18(1):264.

104. Lindbäck Y, Tropp H, Enthoven P, Abbott A, Öberg B. Pre-surgery physiotherapy for patients with degenerative lumbar spine disorder: a randomized controlled trial. Spine J. (2017) Dec 15.

105. Diarbakerli E, Grauers A, Danielsson A, Abbott A, Gerdhem P. Quality of life in males and females with idiopathic scoliosis, Spine. (2018) Accepted for publication.

106. Yvonne Lindbäck. Pre-surgery physiotherapy and pain thresholds in patients with degenerative lumbar spine disorders. Linköping University Medical Dissertations No.1029, 2018. ISBN 978-91-7685-276-7. ISSN 0345-0082

107. Parai C, Hägg O, Lind B, Brisby H. The value of patient global assessment in lumbar spine surgery: an evaluation based on more than 90,000 patients. Eur Spine J. 2018 Mar;27(3):554-563.

108. Lagerbäck T, Fritzell P, Hagg O, Nordvall D, Lonne G, Solberg TK, Andersen MO, Eiskjaer S, Gehrchen M, Jacobs WC, van Hooff ML, Gerdhem P. Effectiveness of surgery for sciatica with disc herniation is not substantially affected by differences in surgical incidences among three countries. Results from the Danish, Swedish and Norwegian Spine registries. Accepted in the European Spine J 2018.

109. Joelson A, Diarbakerli E, Gerdhem P, Hedlund R, Wretenberg P, Frennered K. Self-image and health-related quality of life three decades after fusion in situ for high-grade isthmic spondylolisthesis. Accepted in Spine Deformity, 2018.

110. Endler P, Ekman P, Ljungqvist H, Brismar T, Gerdhem P*, Möller H* (*shared authorship). Long term outcome after spinal fusion for isthmic spondylolisthesis in adults. The Spine J 2018 Aug 21. PMOD 30142456.       

111. Diarbakerli E, Grauers A, Danielsson A, Abbott A, Gerdhem P. Quality of life in males and females with idiopathic scoliosis. Accepted in Spine (Phila 1979), 2018.

112. Charalampidis A, Möller A, Wretling ML, Brismar TB, Gerdhem P. Implant Density Unrelated to Patient Reported Outcome in a Nationwide Survey of 328 Patients with Idiopathic Scoliosis. Bone and Joint Journal 2018 Aug;100-B(8):1080-1086. PMID: 30062942.

113. Elkan P, Lagerbäck T, Möller H, Gerdhem P. Response rate does not affect patient reported outcome after lumbar discectomy. European Spine Journal 2018 Jul;27(7):1538-1546. [Epub Mar 9]. PMID: 29523985.

114. Diarbakerli E, Grauers A, Danielsson A, Gerdhem P. Health-related quality of life in adulthood in untreated and treated individuals with adolescent or juvenile idiopathic scoliosis. JBJS 2018. May 16: 811-17. PMID: 29762275.

115. MacDowall A, Skeppholm M, Lindhagen L, Robinson Y, Löfgren H, Michaëlsson K, Olerud Artificial disc replacement versus fusion in patients with cervical degenerative disc disease with radiculopathy: 5-year outcomes from the National Swedish Spine Register.  J Neurosurg Spine. 2018 Nov 2;30(2):159-167.

116. Hansson-Hedblom A, Jonsson E, Fritzell P, Hägg O, Borgström F. The Association Between Patient Reported Outcomes of Spinal Surgery and Societal Costs: A Register Based Study. Spine (Phila Pa 1976). 2019 Mar 26.

117. Iderberg H, Willers C, Borgström F, Hedlund R, Hägg O, Möller H, Ornstein E, Sandén B, Stalberg H, Torevall-Larsson H, Tullberg T, Fritzell P. Predicting clinical outcome and length of sick leave after surgery for lumbar spinal stenosis in Sweden: a multi-register evaluation. Eur Spine J. 2019 Jun;28(6):1423-1432.

118. Parai C, Hägg O, Lind B, Brisby H. Follow-up of degenerative lumbar spine surgery - PROMs stabilize after 1 year: an equivalence study based on Swespine data. Eur Spine J. 2019 Sep;28(9):2187-2197.

119. Endler P, Ekman P, Hellström F, Möller H, Gerdhem P. Minor effect of loss to follow-up on outcome interpretation in the Swedish Spine Register. Accepted for publication in the European Spine Journal 2019.

120. Lagerbäck T, Möller H, Gerdhem P.  Lumbar disc herniation surgery in adolescents and young adults- a long term comparison. Accepted for publication in the Bone and Joint Journal 2019.

121. Endler P, Ekman P, Berglund I, Möller H, Gerdhem P. Long term outcome of fusion for degenerative disc disease in the lumbar spine. Accepted for publication in the Bone and Joint Journal 2019.

122. Helenius L, Diarbakerli E, Grauers A, Oksanen H, Lastikka M, Pajulo O, Gerdhem P, Helenius IJ. Back Pain and Quality of Life after Surgical Treatment for Adolescent Idiopathic Scoliosis at 5-year Follow-up. Comparison with Healthy Controls and Patients with Untreated Idiopathic Scoliosis. Accepted for publication in the Journal of Bone and Joint Surgery (JBJS) 2019.

123. Andersen MO, Fritzell P, Eiskjaer S, Lagerbäck T, Hägg O, Nordvall D, Lönne G, Solberg TK, Jacobs WC, van Hooff M, Gerdhem P, Gehrchen M. Surgical treatment of degenerative disc disease in three Scandinavian countries- an international register based study on three merged national spine registers. Accepted in Global Spine Journal 2019.
124. Joelson A, Diarbakerli E, Gerdhem P, Hedlund R, Wretenberg P, Frennered K. Self-image and health-related quality of life three decades after fusion in situ for high-grade isthmic spondylolisthesis. Accepted in Spine Deformity 2019

125. Sigmundsson FG, Möller A, Strömqvist F. Surgery for Lumbar Spinal Stenosis in Patients With Mild Leg Pain Levels Is Associated With Unsatisfactory Outcome [published online ahead of print, 2020 Aug 4]. Global Spine J.

126. Back pain is improved by lumbar disc herniation surgery. Niyaz Hareni1, Fredrik S, Björn S, et al. Acta Ort accepted

127. Fors M, Abbott A, Enthoven P, Öberg B. Effects of pre-surgery physiotherapy on walking ability and lower extremity strength in patients with degenerative lumbar spine disorder: Secondary outcomes of the PREPARE randomised controlled trial. BMC Musculoskelet Disord. 2019 Oct 24;20(1):468.

128. C Parai; O. Hagg; H. Brisby. ISSLS prize in clinical science 2020: the reliability and interpretability of score change in lumbar spine research. Institutionen för kliniska vetenskaper, Avdelningen för ortopedi. European Spine Journal, 2020, Vol. 29

129. Catharina Parai; O. Hagg; C. Willers; Bengt Lind; Helena Brisby. Characteristics and predicted outcome of patients lost to follow-up after degenerative lumbar spine surgery. Institutionen för kliniska vetenskaper, Avdelningen för ortopedi. European Spine Journal, 2020

130. Peolsson A, Peterson G, Hermansen A, et al. Physiotherapy after anterior cervical spine surgery for cervical disc disease: study protocol of a prospective randomised study to compare internet-based neck-specific exercise with prescribed physical activity. BMJ Open 2019;9:e027387.

131. Joelson A, Sigmundsson FG, Karlsson J. Responsiveness of the SF-36 general health domain: observations from 14883 spine surgery procedures. Qual Life Res. 2021 Jun 19.

132. Joelson A, Sigmundsson FG, Karlsson J. Properties of SF-6D when longitudinal data from 16,398 spine surgery procedures is applied to 9 national SF-6D value sets. Acta Orthop. 2021 Apr 23:1-7.

133. Joelson A, Nerelius F, Holy M, Sigmundsson FG. Reoperations after decompression with or without fusion for L4-5 spinal stenosis with or without degenerative spondylolisthesis: a study of 6,532 patients in Swespine, the national Swedish spine register. Acta Orthop. 2021 Jun;92(3):264-268.

134. Joelson A, Sigmundsson FG, Karlsson J. Properties of the EQ-5D-3L index distribution when longitudinal data from 27,328 spine surgery procedures are applied to nine national EQ-5D-3L value sets. Qual Life Res. 2021 May;30(5):1467-1475.

135. Subaxial Spine Fractures: A Comparison of Patient-reported Outcomes and Complications Between Anterior and Posterior Surgery. Fröjd Révész D, Norell A, Charalampidis A, Endler P, Gerdhem P.Fröjd Révész D, et al. Among authors: charalampidis a. Spine (Phila Pa 1976). 2021 Sep 1;46(17):E926-E931. doi: 10.1097/BRS.0000000000003979

136. Predictors of persistent postoperative pain after surgery for idiopathic scoliosis Anastasios Charalampidis, Lina Rundberg, Hans Möller, Paul Gerdhem Published Online:9 Aug 202

137. Lagerbäck T, Kastrati G, Möller H, Jensen K, Skorpil M, Gerdhem P. MRI characteristics mean 13 years after lumbar disc herniation surgery in adolescence - a case control study. Accepted for publication in JBJS open access.
 
138. Charalampidis A, Rundberg L, Möller H, Gerdhem P. Predictors of persistent postoperative pain after surgery for idiopathic scoliosis. Accepted for publication in J Child Orthop. 

139. Fröjd Revesz D, Norell A, Charalampidis A, Endler P, Gerdhem P.  Subaxial spine fractures: A comparison of patient reported outcomes and complications between anterior and posterior surgery. Accepted for publication in Spine. 

140. Diarbakerli E, Savvides P, Wihlborg A, Bergström I, Abbott A, Gerdhem P. Bone health in adolescents with idiopathic scoliosis: a comparison with age- and sex matched controls. Bone and Joint J 2020 Feb;102-B(2):268-272. PMID: 32009439

141. Fröjd Revesz D, Charalampidis A, Gerdhem P. Effectiveness of laminectomy with fusion and laminectomy alone in degenerative cervical myelopathy. Accepted for publication European Spine J. 

142. Charalampidis A, Möller H, Gerdhem P. Anterior versus posterior fusion surgery in idiopathic scoliosis - a comparison of health-related quality of life and radiographic outcomes in Lenke 5C curves; results from the Swedish spine registry. J Child Orthop. 2021 Oct 1;15(5):464-471. PMID: 34858533

143. Lagerbäck T, Kastrati G, Möller H, Jensen K, Skorpil M, Gerdhem P. MRI characteristics mean 13 years after lumbar disc herniation surgery in adolescence - a case control study. JB JS Open Access. 2021 Nov 19;6(4):e21.00081. eCollection 2021 Oct-Dec.PMID: 34841186

144. Charalampidis A, Rundberg L, Möller H, Gerdhem P. Predictors of persistent postoperative pain after surgery for idiopathic scoliosis. J Child Orthop. 2021 Oct 1;15(5):458-463.PMID: 34858532 

145. Fröjd Revesz D, Norell A, Charalampidis A, Endler P, Gerdhem P.  Subaxial spine fractures: A comparison of patient reported outcomes and complications between anterior and posterior surgery. Spine (Phila Pa 1976). 2021 Sep 1;46(17):E926-E931.

146. Elmqvist E, Lindhagen L, Försth P. No Benefit with Preservation of Midline Structures in Decompression for Lumbar Spinal Stenosis: Results from the National Swedish Spine Registry 2-Year Post-Op. Spine (Phila Pa 1976). 2021 Dec 17.

147. Kontakis M, Marques C, Löfgren H, Mosavi F, Skeppholm M, Olerud C, MacDowall A. Artificial disc replacement and adjacent-segment pathology: 10-year outcomes of a randomized trial. J Neurosurg Spine. 2021 Dec 17:1-9.

148. de Dios E, Heary RF, Lindhagen L, MacDowall A. Laminectomy alone versus laminectomy with fusion for degenerative cervical myelopathy: a long-term study of a national cohort. Eur Spine J. 2022 Feb;31(2):334-345.

149. Carrwik C, Olerud C, Robinson Y. Survival after surgery for spinal metastatic disease: a nationwide multiregistry cohort study. BMJ Open. 2021 Nov 1;11(11):e049198.

150. Carrwik C, Olerud C, Robinson Y. Does knowledge of the primary tumour affect survival after surgery for spinal metastatic disease? A retrospective longitudinal cohort study. BMJ Open. 2021 Aug 25;11(8)

151. Joelson A, Sigmundsson FG, Karlsson J. Properties of the EQ-5D-3L index distribution when longitudinal data from 27,328 spine surgery procedures are applied to nine national EQ-5D-3L value sets. Qual Life Res. 2021;30(5):1467-1475.

152. Joelson A, Nerelius F, Holy M, Sigmundsson FG. Reoperations after decompression with or without fusion for L4-5 spinal stenosis with or without degenerative spondylolisthesis: a study of 6,532 patients in Swespine, the national Swedish spine register. Acta Orthop. 2021;92(3):264-268.

153. Joelson A, Sigmundsson FG, Karlsson J. Properties of SF-6D when longitudinal data from 16,398 spine surgery procedures is applied to 9 national SF-6D value sets. Acta Orthop. 2021;92(5):532-537.

154. Fitsum Sebsibe Teni, Ola Rolfson , Nancy Devlin , David Parkin, Emma Nauclér , Kristina Burström, Swedish Quality Register (SWEQR) Study Group. Variations in Patients' Overall Assessment of Their Health Across and Within Disease Groups Using the EQ-5D Questionnaire: Protocol for a Longitudinal Study in the Swedish National Quality Registers. JMIR Res Protoc. 2021 Aug 27;10(8):e 27669.

155. Joelson A, Sigmundsson FG, Karlsson J. Responsiveness of the SF-36 general health domain: observations from 14883 spine surgery procedures. Qual Life Res. 2022 Feb;31(2):589-596.
156. Joelson A, Nerelius F, Holy M, Sigmundsson FG. Reoperations After Decompression With or Without Fusion for L3-4 Spinal Stenosis With Degenerative Spondylolisthesis: A Study of 372 Patients in Swespine, the National Swedish Spine Register. Clin Spine Surg. 2022 Apr 1;35(3):E389-E393.

157. Sigmundsson FG, Joelson A, Strömqvist F. Patients with no preoperative back pain have the best outcome after lumbar disc herniation surgery. Eur Spine J. 2022 Feb;31(2):408-413

158.  Joelson A, Strömqvist F, Sigmundsson FG, Karlsson J. Single item self-rated general health: SF-36 based observations from 16,910 spine surgery procedures. Qual Life Res. 2022 Jun;31(6):1819-1828.

159. Syvänen J, Helenius L, Raitio A, Gerdhem P, Diarbakerli E, Helenius I. Health-related quality of life after posterior vertebral column resection in children: comparison with healthy controls. Eur J Orthop Surg Traumatol. 2022 Jul;32(5):899-907.

160. Björn Knutsson Bakir Kadum Ted Eneqvist Sebastian Mukka Arkan S. Sayed-Noor Patient Satisfaction With Care Is Associated With Better Outcomes in Function and Pain 1 Year After Lumbar Spine Surgery. Journal of Patient-Centered Research and Reviews Volume 9 Issue 1 Article 2 1-17-2022

161. Sigmundsson FG, Joelson A, Strömqvist F. Additional operations after surgery for lumbar disc prolapse – indications, type of surgery, and long-term follow-up of primary operations performed from 2007-2008. Bone Joint J. 2022;104-B(5):627-632.

162. Joelson A, Nerelius F, Sigmundsson FG, Karlsson J. The minimal important change for the EQ VAS based on the SF-36 health transition item: observations from 25772 spine surgery procedures. Qual Life Res. 2022 Jul 11.

163. Fritzell P, Mesterton J, Hagg O. Prediction of outcome after spinal surgery-using The Dialogue Support based on the Swedish national quality register. Eur Spine J. 2022 Apr;31(4):889-900

164. Joelson A, Fritzell P, Hägg O. Handling of missing items in the Oswestry disability index and the neck disability index. A study from Swespine, the National Swedish spine register. Eur Spine J. 2022 Dec;31(12):3484-3491.

165. Elmqvist E, Lindhagen L, Försth P. No Benefit with Preservation of Midline Structures in Decompression for Lumbar Spinal Stenosis: Results From the National Swedish Spine Registry 2-Year Post-Op. Spine (Phila Pa 1976). 2022 Apr 1;47(7):531-538.

166. Carrwik C, Tsagkozis P, Wedin R, Robinson Y. Predicting survival of patients with spinal metastatic disease using PathFx 3.0 - A validation study of 668 patients in Sweden. Brain Spine. 2022 Nov 8;2:101669.

167. Hareni N, Gudlaugsson K, Strömqvist F, Rosengren B, Karlsson M. A comparison outcome study between obese and non-obese patients with Central Lumbar Spinal Stenosis undergoing surgical decompression: A study of 14984 patients in the The National Swedish Registry for Spine Surgery. Acta Orthop. 2022 Nov 28;93:880-886.

168. Hareni N, Strömqvist F, Rosengren B, Karlsson M. A study comparing outcomes between obese and nonobese patients with lumbar disc herniation undergoing surgery: a study of the Swedish National Quality Registry of 9979 patients. BMC Musculoskelet Disord. 2022 Oct 22;23(1):931.

169. Joelson A, Sigmundsson FG. Additional operation rates after surgery for degenerative spine diseases: minimum 10 years follow-up of 4705 patients in the national Swedish spine register. BMJ Open. 2022 Dec 9;12(12):e067571.

170. Joelson A, Sigmundsson FG, Karlsson J. Stability of SF-36 profiles between 2007 and 2016: A study of 27,302 patients surgically treated for lumbar spine diseases. Health Qual Life Outcomes. 2022 Jun 7;20(1):92.

171. Thomas Karlsson, Peter Försth, Mikael Skorpil, Konstantinos Pazarlis, Patrik Öhagen, Karl Michaëlsson, Bengt Sandén. Decompression alone or decompression with fusion for lumbar spinal stenosis: a randomized clinical trial with two-year MRI follow-up. Bone Joint J. 2022 Dec;104-B(12):1343-1351.

172. Torstensson T, Sayed-Noor A, Knutsson B. Physical Inactivity Before Surgery for Lumbar Spinal Stenosis Is Associated With Inferior Outcomes at 1-Year Follow-Up: A Cohort Study. Int J Spine Surg. 2022 Sep;16(5):916-920.

173. Teni FS, Rolfson O, Devlin N, Parkin D, Nauclér E, Burström K; Swedish Quality Register (SWEQR) Study Group. Longitudinal study of patients' health-related quality of life using EQ-5D-3L in 11 Swedish National Quality Registers. BMJ Open. 2022 Jan 6;12(1):e048176