Information about several papers discussed at a symposium of the Society of British Neurological Surgeons. The proceedings include various topics such as the impact of pre-existing degenerative spondylolisthesis on laminectomy for lumbar canal stenosis, spinal dural arterio-venous fistula, and porous coated motion artificial cervical disk replacement. The objective, design, outcome measures, results, and conclusion of these studies are provided.