What is the function of pars interarticularis?
Pars Interarticularis, Structural Forces and Stress The joints above are connected to the joints below in one vertebra through the pars interarticularis. The pars interarticularis means the “part between the articulations” in Latin and is the bony bridge that joins these two upper and lower facets.
Is pars interarticularis same as lamina?
Lamina: Think of this as the roof of your spine. The lamina is located on the back of your vertebra, and it helps protect your spinal cord. The pars interarticularis is part of the lamina. Pars interarticularis: This is a region of the lamina located between the facet joints.
What is the pars in the spine?
The spinal cord is protected by rings of bone that make up the middle and posterior (rear) portion of the spinal column. In each of these rings, the pars interarticularis (or simply “pars” for short) connects other components of the ring, known as the pedicle and lamina.
Where are the pars?
The pars interarticularis or simply pars is the part of a vertebra located between the superior and inferior articular processes. In the axial plane the pars in located at the junction of the pedicle and lamina. In the oblique lumbar radiograph, the neck of the Scottie dog represents the pars.
What is para Interarticularis?
Pars interarticularis refers to a small segment of bone that joins the facet joints in the back of the spine. A defect in this portion of the spine leads to a condition called spondylolysis.
What is pars interarticularis anatomy?
What is pars defect in lumbar spine?
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.
How many pars interarticularis are there?
The Pars Interarticularis is a special region of the lamina between the superior and inferior articular processes. The term literally means part between the articulations in Latin language and is kind of bony bridge that joins these two upper and lower facets. Thus one vertebral has two pars interarticularis.
What country is pars based on?
Trivia. Pars, whose name is exactly the same as the native name for Persia proper (Pārs) is based off the Persian Empire, and the pre-Islamic native Iranian dynasties in particular.
What do you need to know about pars interarticularis?
Pars Interarticularis Definition. Pars interarticularis refers to a small segment of bone that joins the facet joints in the back of the spine. A defect in this portion of the spine leads to a condition called spondylolysis. Spinal Anatomy and Back Pain.
Where is the pars located in the human body?
The pars interarticularis (pars) lies between the superior and inferior articular process bilaterally at each vertebral level. Anatomically, one can describe the pars as the region between two, one superior and one inferior, zygapophyseal joints.
Where does the fracture of the pars interarticularis occur?
pars interarticularis. The region between the superior and inferior articulating facets of a vertebra; the region where fracture frequently occurs with spondylolysis.
Which is a clinical presentation of a pars defect?
Grading of spondylolisthesis is included below in “staging.” Two common clinical presentations of a pars defect include the imaging of an asymptomatic adolescent or adult in whom there is the incidental discovery of a pars defect.