Discograms are controversial and involve the injection of contrast or other material into the disc to try to reproduce the pain experienced by the patient. This can be less than accurate though as discs can be innervated at a different level to the actual diseased disc, so the results can be hard to interpret
An annular
tearTears again
Tears again gel drops
Tears again night & day
Tears naturale
Tears naturale forte
Tears naturale free
Tears naturale ii
Tears naturale pm
Tears plus
Tears renew
Tears renewed alone is a relatively minor disc problem and many surgeons may not do a lumbar fusion for that alone unless it coexisted with other problems ie slipping of the vertebral bodies or unstable joints
Osteoporosis can make placing instruments ie rods/screws etc in the spine troublesome. TO get around this some surgeons use cement or other non-instruent methods to join bones together.
Good luck