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  1. Article

    Open Access

    Handling of missing items in the Oswestry disability index and the neck disability index. A study from Swespine, the National Swedish spine register

    The Oswestry Disability Index (ODI) and the Neck Disability Index (NDI) scoring algorithms used by the Swedish spine register (Swespine) until April 2022 handled missing items somewhat differently than the ori...

    Anders Joelson, Peter Fritzell, Olle Hägg in European Spine Journal (2022)

  2. Article

    Open Access

    Prediction of outcome after spinal surgery—using The Dialogue Support based on the Swedish national quality register

    To evaluate the predictive precision of the Dialogue Support, a tool for additional help in shared decision-making before surgery of the degenerative spine.

    Peter Fritzell, Johan Mesterton, Olle Hagg in European Spine Journal (2022)

  3. Article

    Correction to: Bacteria: back pain, leg pain and Modic sign—a surgical multicenter comparative study

    Unfortunately, the 5th author name was incorrectly published in the original paper. The complete correct name is given below.

    Peter Fritzell, Christina Welinder-Olsson, Bodil Jönsson in European Spine Journal (2020)

  4. Article

    Open Access

    Bacteria: back pain, leg pain and Modic sign—a surgical multicentre comparative study

    To compare bacterial findings in pain-generating degenerated discs in adults operated on for lumbar disc herniation (LDH), and mostly also suffering from low back pain (LBP), with findings in adolescent patien...

    Peter Fritzell, Christina Welinder-Olsson, Bodil Jönsson in European Spine Journal (2019)

  5. Article

    Open Access

    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

    Yearly incidence of surgery for symptomatic lumbar disc herniation varies and is 29/100,000 in Sweden, 46/100,000 in Denmark and 58/100,000 in Norway. This variation was used to study whether differences in su...

    Tobias Lagerbäck, Peter Fritzell, Olle Hägg, Dennis Nordvall in European Spine Journal (2019)

  6. No Access

    Article

    Predicting clinical outcome and length of sick leave after surgery for lumbar spinal stenosis in Sweden: a multi-register evaluation

    Lumbar spinal stenosis (LSS) can be surgically treated, with variable outcome. Studies have linked socioeconomic factors to outcome, but no nation-wide studies have been performed. This register-based study, i...

    Hanna Iderberg, Carl Willers, Fredrik Borgström, Rune Hedlund in European Spine Journal (2019)

  7. Article

    Open Access

    Cost of low back pain: results from a national register study in Sweden

    To estimate the societal costs of low back pain with/without radiating leg pain (LBP). LBP is a major burden in terms of both personal suffering and societal costs.

    Gylfi Olafsson, Emma Jonsson, Peter Fritzell, Olle Hägg in European Spine Journal (2018)

  8. Article

    Open Access

    Patients with severe low back pain exhibit a low level of physical activity before lumbar fusion surgery: a cross-sectional study

    People with severe low back pain are at higher risk of poor health. Patients scheduled for lumbar fusion surgery are assumed to have low levels of physical activity, but few data exist. The aim of the study wa...

    Hanna Lotzke, Max Jakobsson, Annelie Gutke in BMC Musculoskeletal Disorders (2018)

  9. Article

    Open Access

    Use of the PREPARE (PREhabilitation, Physical Activity and exeRcisE) program to improve outcomes after lumbar fusion surgery for severe low back pain: a study protocol of a person-centred randomised controlled trial

    Following lumbar fusion surgery, a successful outcome is empirically linked to effective rehabilitation. While rehabilitation is typically postoperative, the phase before surgery – termed prehabilitation – is rep...

    Hanna Lotzke, Max Jakobsson, Helena Brisby, Annelie Gutke in BMC Musculoskeletal Disorders (2016)

  10. No Access

    Article

    Age and pro-inflammatory gene polymorphisms influence adjacent segment disc degeneration more than fusion does in patients treated for chronic low back pain

    Does lumbar fusion lead to accelerated adjacent segment disc degeneration (ASDD) or is it explained by genetics and aging? The influence of genetics on ASDD remains to be explored. This study assesses whether ...

    Ahmad Omair, Anne F. Mannion, Marit Holden, Gunnar Leivseth in European Spine Journal (2016)

  11. No Access

    Article

    Catechol-O-methyltransferase (COMT) gene polymorphisms are associated with baseline disability but not long-term treatment outcome in patients with chronic low back pain

    To examine the association between COMT and OPRM1 gene polymorphisms and pain and disability at baseline and long-term follow-up in patients treated for chronic low back pain (LBP).

    Ahmad Omair, Anne F. Mannion, Marit Holden, Jeremy Fairbank in European Spine Journal (2015)

  12. Article

    Open Access

    Swespine: the Swedish spine register

    Swespine, the Swedish National Spine Register, has existed for 20 years and is in general use within the country since over 10 years regarding degenerative lumbar spine disorders. Today there are protocols for...

    Björn Strömqvist, Peter Fritzell, Olle Hägg, Bo Jönsson in European Spine Journal (2013)

  13. Article

    Open Access

    The Swedish Spine Register: development, design and utility

    The Swedish Spine Register enables monitoring of surgical activities focusing on changes in trends over time, techniques utilized and outcome, when implemented in general clinical practice. Basic requirements ...

    Björn Strömqvist, Peter Fritzell, Olle Hägg, Bo Jönsson in European Spine Journal (2009)

  14. No Access

    Article

    Sexual function in men and women after anterior surgery for chronic low back pain

    Sexual dysfunction after anterior lumbar fusion has mainly been focused on male biological function (retrograde ejaculation). The aim of the present study is to assess the effect of fusion surgery for chronic ...

    Olle Hägg, Peter Fritzell, Anders Nordwall in European Spine Journal (2006)

  15. No Access

    Article

    A practical approach to spine registers in Europe: the Swedish experience

    Today there is growing awareness among spine surgeons of the advantages in using registers to facilitate the analyses and reporting of treatment outcome. The Swedish Spine register is among the first to be use...

    Peter Fritzell, Björn Strömqvist, Olle Hägg in European Spine Journal (2006)

  16. Article

    Open Access

    The Flanagan Quality of Life Scale: Evidence of Construct Validity

    The Quality of Life Scale (QOLS), developed originally by John Flanagan in the 1970's, has been adapted for use in chronic illness groups. Evidence for reliability and validity has been published over the year...

    Carol S Burckhardt, Kathryn L Anderson in Health and Quality of Life Outcomes (2003)

  17. No Access

    Article

    Complications in lumbar fusion surgery for chronic low back pain: comparison of three surgical techniques used in a prospective randomized study. A report from the Swedish Lumbar Spine Study Group

    The reported complication rates after various surgical techniques used to create a lumbar fusion vary within wide ranges. In a previous paper, the Swedish Lumbar Spine Study Group have reported on the clinica...

    Peter Fritzell, Olle Hägg, Anders Nordwall in European Spine Journal (2003)