Spondylolysis
This is a condition characterised by degeneration of a portion of the vertebra, usually in the pars interarticularis (the bone bridge between the superior and inferior facet joints of the lumbar vertebra).
This is a condition characterised by degeneration of a portion of the vertebra, usually in the pars interarticularis (the bone bridge between the superior and inferior facet joints of the lumbar vertebra).