Inclusion Criteria:  Patients with lumbar stenosis to be decompressed over 1-3 segments  Ages 40-95 Appropriate for general anesthesia  Exclusion Criteria:  Planned significant nerve root retraction Previous fusion operation Unable to comply with follow up Patients with daily morphine equivalents or more 100mg Patients with a known hypersensitivity to propofol or any of DIPRIVAN Injectable Emulsion components. Patients with allergies to eggs, egg products, soybeans or soy products.