Lumbar Spine Pathology Spondylolisthesis Isthmic High Grade orthopeadic movies. The inter-vertebral disc and the facet joints are the points that connect and stabilize adjacent vertebrae. They allow some movement while keeping adjacent vertebrae correctly aligned.
The pars are the parts of the vertebrae that connect the pedicle with the lamina, or more accurately, the superior articular process to the inferior articular process of the same vertebra.
SPONDYLOSIS
When there is a break in the bony pars, it is called spondylolysis. Six percent of the population has a defect in the pars. Many have no symptoms, so it is only found during an investigation for another problem. Mostly it is stable and won't become worse, and so doesn't require any treatment.
Spondylosis can occur with increased stress on back, particularly from movement like repeated back extension and rotation. The bony pars can develop stress.
Lumbar Spine Pathology Spondylolisthesis Isthmic High Grade orthopeadic movies.