Dec 14, 2017 · Your pars interarticularis (or, just pars for short) is a small piece of bone at the base of your spine where L4 and L5 vertebrae are located. Any defect of the pars interarticularis will cause stiffness, pain, and severe discomfort in your lumbar area.

Sep 7, 2022 · Pars fractures most commonly occur in the lowest lumbar vertebra (L5) of the lower back (lumbar spine). In athletes, this type of injury can be seen when the back is bent backwards repeatedly, in activities such as gymnastics, karate and other martial arts.

Apr 22, 2019 · Pars defect of L5-S1 is common, in which this segment is frequently affected, which increases the risk of the L5 vertebra slipping over the S1 segment causing more damage. The L4-L5 segment too is common area, where Pars defect can lead to spinal problems.

Understanding Bilateral Pars Defect L5-S1. The bilateral pars defect, also known as spondylolysis, is a condition that affects the lower back. It happens in the L5-S1 spinal segment. This defect is in the pars interarticularis, a small part of the spine that can break easily.

Sep 16, 2015 · Spondylolysis, also known as a pars defect, happens when a crack forms in the bony ring on the back of the spinal column. Most commonly, this occurs in the lumbar spine. In this condition, the bone that protects the spinal canal fractures as a result of excessive or repeated stress.

Mar 9, 2023 · Spondylolysis is a common cause of spondylolisthesis, because the crack (called a pars fracture) in a vertebra can cause it to slip out of place and become spondylolisthesis. What is the difference between spondylolysis and spondylosis?

Jun 12, 2023 · The definition of pars interarticularis defect is a unilateral or bilateral overuse or fatigue stress fracture involving the pars interarticularis of the posterior vertebral arch. This injury occurs almost exclusively in the lower lumbar region, most often at L5 [1].

Spondylolysis/Pars Defect. A pars defect or spondylolysis is a stress fracture of the bones of the lower spine. These fractures typically occur due to overuse. They can be on one or both sides of the vertebrae. It is a common cause of low back pain in children and adolescents.

An L5 S1 pars defect is a stress fracture in the L5 vertebra's pars interarticularis area. It's at the spine's base. This can make the spine unstable and cause back pain.

L5 Pars Defect is a condition that affects the L5 vertebra in the lower back. It happens when a small part of the bone called the pars interarticularis breaks. This can cause back pain and make the spine unstable.