Factors Influencing Surgical Decision-Making in the Posterior Laminectomy With Fixation for Degenerative Cervical Myelopathy (POLYFIX-DCM) Trial: Survey Study

Stefan Yordanov   ^{1 *} , MSc ;   Xiaoyu Yang   ¹ , PhD ;   Oliver Mowforth   ^{1 *} , MSc ;   Andreas K Demetriades   ² , FEBS, FRCS ;   Marcel Ivanov   ^{3 *} , MD, MSc, PhD ;   Pierluigi Vergara   ⁴ , MD ;   Adrian Gardner   ⁵ , PhD ;   Erlick Pereira   ^{6 *} , MA, BM BCH ;   Antony Bateman   ⁷ , MSc ;   Alexander Alamri   ^{6 *} , MSc ;   Jibin Francis   ¹ , MBBCh ;   Rikin Trivedi   ^{1 *} , PhD ;   Mark Kotter   ^{1 *} , PhD ;   Benjamin Davies   ^{1 *} , BSc, MPhil, MBChB(Hons) ;   Alexandru Budu   ^{8 *} , MD ;   POLYFIX-DCM research Collaborative Group   ^{9 *}

¹ Academic Neurosurgery Unit, Department of Clinical Neurosurgery, Cambridge University, Cambridge, United Kingdom

² Department of Neurosurgery, Royal Infirmary Edinburgh, Edinburgh, United Kingdom

³ Neurosurgery Department, Royal Hallamshire Hospital, Sheffield, United Kingdom

⁴ Department of Spinal Surgery, East Suffolk and North Essex NHS Foundation Trust, Ipswich, United Kingdom

⁵ The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, United Kingdom

⁶ Department of Neurosurgery, St Georges University Hospital NHS Foundation Trust, London, United Kingdom

⁷ Royal Derby Spinal Centre, University Hospitals of Derby and Burton NHS Foundation Trust, Derby, United Kingdom

⁸ Department of Neurosurgery, Queen Elizabeth Hospital, Birmingham, United Kingdom

⁹ See Acknowledgements, London, United Kingdom

*these authors contributed equally