What is a break in the pars interarticularis called?

A break in the pars interarticularis is referred to as spondylolysis. This condition typically occurs as a result of stress fractures in the vertebrae, particularly in the lumbar region, and is characterized by a defect in the bony structure between the superior and inferior articular facets of a vertebra. Spondylolysis may lead to instability in the spinal column and is often associated with back pain, particularly in athletes or individuals who participate in activities that put stress on the lower back.

Understanding this condition is crucial, especially when evaluating patients with lower back pain and considering the implications on mobility and functional abilities. It is important to differentiate spondylolysis from other spinal conditions such as spondylopathy, which refers more generally to any disease affecting the vertebrae. Osteochondrosis involves the degeneration of cartilage, while stenosis refers to the narrowing of the spinal canal, leading to pressure on the spinal cord or nerves. Spondylolysis specifically addresses the structural break in the pars interarticularis, thus making it the correct choice in this context.