[COLOR=Magenta]Bilateral pars interarticularis defects at L5,[/COLOR]
Spondylolysis (I found a picture of this on the net. It is like the facets seperated from the vertebre.)
Spondylolysis is a stress fracture or defect of the pars interarticularis in a vertebra. A stress fracture can occur at the pars interarticularis due to repetitive movements of extension and rotation which leads to an increase in shear forces in the lumbar spine. As shear forces increase, pressures on the facet joints increase. These forces are then transmited to the pars interarticularis. Since the pars interarticularis is small, it is unable to absorb repetitive shock which leads to the stress fracture.
[COLOR=Magenta]Displacement of the thecal sac at L5[/COLOR]
[COLOR=Magenta]anterior slippage of the upper that uncovers the intervertabral disc[/COLOR]
This would be part of the spondy
[COLOR=Magenta]some facet joint arthropathy,[/COLOR]
[COLOR=Magenta]Discogenic impingement on the L5 nerves in their foraminae with neural flattening to the right[/COLOR]
This would cause pain.
stress fracture in one of the bones (vertebrae) that make up the spinal column
Sounds like you have a disc that has slipped due to either an injury that you might have felt or just over time. I think that they have to go in and either fuse or put in rods to hold your back in place or maybe you can see if PT helps. The arthritis would be caused by the body trying to hold itself in place.