Spinal fusion, Nerve decompression, Spine decompression, Spine reconstruction, CSF leak, Cerebrovascular disease, Neuro...fibromatosis, Glioma, Spinal tumor, Brain tumor, Degenerative disk disease, Pituitary tumor, Acoustic neuroma, Spinal cord tumor, Chordoma, Glioblastoma, Ependymoma, Astrocytoma, Meningioma, Brain metastasis, Oligodendroglioma, Neurofibroma, Choroid plexus papilloma