film x-ray lumbar spine , l-s spine ap,lateral view grade spondylolithesis of l5-s1 , decresed height of intervertebral disc space

anatomy back body bone care decresed diagnosis disc disease doctor film grade health height human illness image injury intervertebral joint lateral lumbar medical medicine orthopedic patient ray sacrum scan space spinal spine spondylolithesis spondylosis surgery technology vertebra view