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 …

Spondylolysis also known as a pars defect or pars fracture, is a defect or stress fracture in the pars interarticularis of the vertebral arch. [1][2] The vast majority of cases occur in the lower …

Healthcare providers sometimes refer to spondylolysis as pars defect or pars fractures because it affects your pars interarticularis — the tiny ridges of bone that link your vertebrae together.

Aug 18, 2025 · A pars defect, also known as spondylolysis, is a stress fracture affecting a bone segment in the lower spine. It is a common cause of back pain, particularly in younger …

Spondylolysis is a stress fracture through the pars interarticularis of lumbar vertebrae. This injury does not always show a symptom, but when it does, the only symptom is usually back pain.

Spondylolysis is also called "pars defect" because the pars interarticularis is the part that is fractured. It most often occurs in the lower back (lumbar spondylolysis) but can also affect the …

Sep 6, 2022 · What is spondylolysis? Spondylolysis is a spinal defect or fracture of a bone structure called the pars interarticularis, which connects the facet joints of the spine. The …

When this area becomes fractured or develops a defect, it can lead to instability in the affected segment of the spine, often resulting in pain and other neurological symptoms.

Spondylolysis, commonly known as pars interarticularis defect or pars defect, is a defect in the pars interarticularis, the portion of the vertebral arch that connects the superior and inferior …

Feb 13, 2024 · Spondylolysis refers to a stress fracture in the pars interarticularis, a small, thin portion of the vertebra that connects the upper and lower segments of the facet joints. This …