In younger adults (20-60 year olds) the disc is likely to be the pain generator and conditions may include:
•Lumbar disc herniation
•Degenerative disc disease
•Isthmic spondylolisthesis
In older adults (over 60 years old), the source of back pain or leg pain is more likely to be the facet joints or osteoarthritis, and back conditions may include:
•Facet joint osteoarthritis
•Degenerative spondylolisthesis
In addition to the above, there are several miscellaneous causes of back pain.