Acknowledgements
The authors acknowledge the support of the AO Spine RECODE-DCM community and Myelopathy.org in the completion of this work. The views expressed in this publication are those of the authors and not necessarily those of the NHS, the National Institute for Health Research or the Department of Health. AO Spine RECODE-DCM and its investigators would like to acknowledge the funding and support of AO Spine, without whom this initiative would not be possible.