Consultant Spine Surgeon
Royal Orthopaedic Hospital
JSM declares that he has no competing interests.
Dr Jwalant S. Mehta would like to gratefully acknowledge Dr Giannoulis Kyriakos and Dr Nasir Quiraishi, previous contributors to this topic. GK and NQ declare that they have no competing interests.
Consultant Spine Surgeon and Head of Department
Centre for Spinal Studies
Robert Jones and Agnes Hunt Hospital NHS Foundation Trust
Alder Hey University Children's Hospital
JT declares that he has no competing interests.
Department of Neurosurgery
JR declares that he has no competing interests.