Spondylolisthesis Treatment, Surgery Symptoms
Spondylolysis and Isthmic Spondylolisthesis. Isthmic spondylolisthesis is also common. The pars interarticularis, also referred to as the isthmus, is a thin bone of the posterior arch of the lumbar vertebrae where the lamina and the inferior articular process join the pedicle and superior articular process.
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