WHAT IS PARS INTERARTICULARIS?

PARS INTERARTICULARIS

• The pars interarticularis is the bony bridge between the superior (upper) and the inferior (lower) processes

• It can be also called as PARS in short

• Abnormality of Pars interarticularis due to fracture or by birth (congenital) leads to Spondylolysis which can progress into Spondylolisthesis.

• Stress fractures of the pars interarticularis mostly occur while playing sports such as volleyball, although the mechanism of injury is not clear.

• Bilateral fractures of pars at the second cervical vertebra are known as a variant of the hangman's fracture.

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