PARS DEFECT/SPONDYLOLISTHESIS

Pars Defect/Spondylolisthesis is a defect or stress fracture of the bones of the lower spine called the
pars interarticularis. They can be on one or both sides of the vertebrae with varying degrees of
displacement so the vertebra with the defect and the spine above that vertebra are displaced forward in
relationship to the vertebrae below.

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