Inclusion criteria: |
   1. Age greater than 18 years (to allow informed consent). |
   2. Diagnosis is lumbar degenerative disease (disc degeneration, disc herniation, spinal stenosis, spondylolisthesis, or degenerative scoliosis). |
   3. Surgery involves at least one lumbar vertebra. |
   4. Surgery at Harborview Medical Center or University of Washington Medical Center. |
Exclusion criteria: |
   1. Inflammatory spondyloarthropathy. |
   2. Spinal malignancy or infection. |
   3. Pregnancy. |
   4. No telephone contact, or planning to move within a year. |
   5. Unable to complete study questionnaires or follow-up telephone interviews in English. |