1. Validation of a surgical invasiveness index in patients with lumbar spinal disorders registered in the Spine Tango registry

   • Erik M. Holzer
   • Emin Aghayev
   • Anne F. Mannion

   Original Article Open access 24 November 2020 Pages: 1 - 12

   

2. The effect of obesity, diabetes, and epidural steroid injection on regional volumetric bone mineral density measured by quantitative computed tomography in the lumbosacral spine

   • Ichiro Okano
   • Stephan N. Salzmann
   • Alexander P. Hughes

   Original Article 10 October 2020 Pages: 13 - 21

   

3. Lumbar interbody fusion: recent advances in surgical techniques and bone healing strategies

   • Bin Meng
   • Joshua Bunch
   • Jinxi Wang

   Review Article 19 September 2020 Pages: 22 - 33

   

4. Cross-links in posterior pedicle screw-rod instrumentation of the spine: a systematic review on mechanical, biomechanical, numerical and clinical studies

   • Frédéric Cornaz
   • Jonas Widmer
   • Mazda Farshad

   Review Article Open access 03 October 2020 Pages: 34 - 49

   

5. ALIF in the correction of spinal sagittal misalignment. A systematic review of literature

   • M. Formica
   • E. Quarto
   • L. Felli

   Review Article 15 September 2020 Pages: 50 - 62

   

6. Comparable dislocation and revision rates for patients undergoing total hip arthroplasty with subsequent or prior lumbar spinal fusion: a meta-analysis and systematic review

   • James Randolph Onggo
   • Mithun Nambiar
   • Raphael Hau

   Review Article 26 October 2020 Pages: 63 - 70

   

7. Novel augmentation technique of percutaneous pedicle screw fixation using hydroxyapatite granules in the osteoporotic lumbar spine: a cadaveric biomechanical analysis

   • Haruo Kanno
   • Toshimi Aizawa
   • Eiji Itoi

   Original Article 18 May 2020 Pages: 71 - 78

   

8. Importance of the epiphyseal ring in OLIF stand-alone surgery: a biomechanical study on cadaveric spines

   • Xuyang Zhang
   • Hao Wu
   • Fengdong Zhao

   Original Article 23 November 2020 Pages: 79 - 87

   

9. Cranial facet joint injuries in percutaneous lumbar pedicle screw placement: a matched-pair analysis comparing intraoperative 3D navigation and conventional fluoroscopy

   • Marc Hohenhaus
   • Ralf Watzlawick
   • Jan-Helge Klingler

   Original Article Open access 27 May 2020 Pages: 88 - 96

   

10. Correlation study of radiographic characteristics and operative difficulty in lateral–anterior lumbar interbody fusion (LaLIF) at the L4-5 level: a novel classification for case selection

    • Hui Liu
    • Haowen Cui
    • Zhaomin Zheng

    Original Article 20 August 2020 Pages: 97 - 107

    

11. The prone transpsoas technique: preliminary radiographic results of a multicenter experience

    • Luiz Pimenta
    • Rodrigo Amaral
    • Matheus Batista

    Original Article 29 May 2020 Pages: 108 - 113

    

12. PLIF surgery with titanium-coated PEEK or uncoated PEEK cages: a prospective randomised clinical and radiological study

    • Klaus John Schnake
    • Nikolai Fleiter
    • Frank Kandziora

    Original Article 22 October 2020 Pages: 114 - 121

    

13. Does minimally invasive spine surgery reduce the rate of perioperative medical complications? A retrospective single-center experience of 1435 degenerative lumbar spine surgeries

    • Marcelle Altshuler
    • Kyle Mueller
    • Jean-Marc Voyadzis

    Original Article 22 July 2020 Pages: 122 - 127

14. Cortical threaded pedicle screw improves fatigue strength in decreased bone quality

    • Lukas Weiser
    • Kay Sellenschloh
    • Gerd Huber

    Original Article Open access 17 September 2020 Pages: 128 - 135

    

15. A screw position change at an early postoperative stage preceding the subsequent occurrence of screw loosening

    • Satoru Tanioka
    • Masashi Fujimoto
    • Masaki Mizuno

    Original Article 23 June 2020 Pages: 136 - 141

    

16. Radiological and clinical differences between robotic-assisted pedicle screw fixation with and without real-time optical tracking

    • Jinpeng Du
    • Lin Gao
    • Liang Yan

    Original Article 20 October 2020 Pages: 142 - 150

    

17. The correlation of intraoperative distraction of intervertebral disc with the postoperative canal and foramen expansion following oblique lumbar interbody fusion

    • Guang-Xun Lin
    • Gang Rui
    • Jin-Sung Kim

    Original Article 22 September 2020 Pages: 151 - 163

    

18. Defining a safe working zone for lateral lumbar interbody fusion: a radiographic, cross-sectional study

    • Bhavuk Garg
    • Nishank Mehta
    • Anupam Gupta

    Original Article 12 October 2020 Pages: 164 - 172

    

19. MRI versus CT: a retrospective investigation of the feasibility and agreeability in post-operative evaluation of screw position after posterior lumbar interbody fusion

    • F. M. Battleday
    • M. Williams
    • J. Timothy

    Original Article 06 May 2020 Pages: 173 - 180

    

20. Risk of adjacent segment disease after ‘topping-off’ multi-level lumbar fusions with posterior dynamic stabilisers: an observational cohort study

    • William R. Sears
    • Ann C. Solterbeck
    • Jennifer A. Kos

    Original Article 21 October 2020 Pages: 181 - 190

    

21. Factors associated with a 30-day unplanned readmission after elective spine surgery: a retrospective cohort study

    • Tak Kyu Oh
    • Jung-Hee Ryu
    • Young-Tae Jeon

    Original Article 04 August 2020 Pages: 191 - 199

    

22. Qualitative assessment of patients’ perspectives and willingness to improve healthy lifestyle physical activity after lumbar surgery

    • Carol A. Mancuso
    • Manuela C. Rigaud
    • Federico P. Girardi

    Original Article 19 June 2020 Pages: 200 - 207

    

23. Major complications in extreme lateral interbody fusion access: multicentric study by Italian S.O.L.A.S. group

    • Andrea Piazzolla
    • Davide Bizzoca
    • Biagio Moretti

    Original Article 03 August 2020 Pages: 208 - 216

    

24. Terminal complement complex formation is associated with intervertebral disc degeneration

    • Graciosa Q. Teixeira
    • Zhiyao Yong
    • Cornelia Neidlinger-Wilke

    Original Article Open access 16 September 2020 Pages: 217 - 226

    

25. Superficial and deep lumbar multifidus layers of asymptomatic individuals: intraday and interday reliability of the echo intensity measurement

    • Elaine Mattos Senna Resende
    • Viviane Bastos de Oliveira
    • Liliam Fernandes de Oliveira

    Original Article 25 August 2020 Pages: 227 - 231

    

26. Correction to: Management and prognosis of acute traumatic cervical central cord syndrome: systematic review and Spinal Cord Society—Spine Trauma Study Group position statement

    • P. K. Karthik Yelamarthy
    • H. S. Chhabra
    • Francois Theron

    Correction 20 November 2020 Pages: 232 - 233

    

27. Correction to: Major complications in extreme lateral interbody fusion access: multicentric study by Italian S.O.L.A.S. group

    • Andrea Piazzolla
    • Davide Bizzoca
    • Biagio Moretti

    Correction 09 October 2020 Pages: 234 - 234

28. EUROSPINE Meeting 2020: Abstracts Virtual Annual Meeting, 6-9 October

    Abstract 21 January 2021 Pages: 235 - 236

29. EUROSPINE Meeting 2020: Abstracts Virtual Annual Meeting, 6–9 October

    Abstract 21 January 2021 Pages: 237 - 277

30. EUROSPINE Meeting 2020: Abstracts Virtual Annual Meeting, 6–9 October

    Abstract 21 January 2021 Pages: 278 - 325

31. EUROSPINE Meeting 2020: Abstracts Virtual Annual Meeting, 6–9 October

    Abstract 21 January 2021 Pages: 326 - 372

32. Index: EUROSPINE Meeting 2020: Abstracts Virtual Annual Meeting, October 6–9

    Abstract 21 January 2021 Pages: 373 - 378

33. Announcement

    Announcements 15 January 2021 Pages: 379 - 379