=====Brice-McKissock classification===== Spinal cord function with spine mets Grade 1: mild Patient able to walk. Grade 2: moderate Able to move legs, but not antigravity. Grade 3: severe Slight residual motor and sensory function. Grade 4: complete No motor, sensory, or sphincter function below level of lesion. ((Greenberg's Handbook of Neurosurgery, 7th edition)).