A: Spondylolisthesis is a forward or backward slippage of one vertebra (spinal bone) upon another. Based upon your information, I assume that your son's problem is in the lumbar spine (low back). Please keep in mind that without an actual physical examination I cannot provide more than general information.

The vertebrae are held in alignment by a number of different structures, including the intervertebral discs, tough fibrous li

Some common words found in the essay are:
Pars Interarticularis, , bone scan, appropriate rehabilitation program, rehabilitation program, lumbar spine, appropriate rehabilitation,
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