Some things that often go along with aging are considered by Medicare to justify an extended, or longer term, of chiropractic care.
These include degeneration of spinal discs, usually associated with spondylosis, which means bony spur formation around vertebral edges. Another term for this is DJD, or degenerative joint disease. Sciatica, or low back pain with sciatica, as well as spinal stenosis, are other conditions that may warrant extended care.
Other co-morbidities, or health conditions which may complicate or impede healing, are diabetes, osteoporosis, and spinal curvatures such as scoliosis or kyphosis.