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Facet joint arthrosis is an intervertebral disc disorder. The facet joints or zygapophyseal joints are synovial cartilage covered joints that limit the movement of ...
Facet joints also prevent each vertebra from slipping over the one below. A small capsule surrounds each facet joint providing a nourishing lubricant for the joint. Also, each joint has a rich supply of tiny nerve fibers that provide a painful stimulus when the joint is injured or irritated. Inflamed facets can cause a powerful muscle spasm.
This is commonly known as facet joint arthritis or facet arthropathy. [3] As with any arthritis, the joint can become enlarged due to the degenerative process. Even small changes to the facet joint can narrow the intervertebral foramen, possibly impinging on the spinal nerve roots within. [3]
Spondylosis is caused from years of constant abnormal pressure, caused by joint subluxation, stress induced by sports, acute and/or repetitive trauma, or poor posture, being placed on the vertebrae and the discs between them. The abnormal stress causes the body to form new bone in order to compensate for the new weight distribution.
Joint pain is a common but non-specific sign of joint disease. Signs will depend on the specific disease, and may even then vary. Common signs may include: [citation needed] Decreased range of motion; Stiffness; Effusion; Pneumarthrosis, air in a joint (which is also a common normal finding). Bone erosion; Systemic signs of arthritis such as ...
Degenerative anterolisthesis (also called type 3) is a disease of the older adult that develops as a result of facet arthritis and joint remodeling. Joint arthritis, and ligamentum flavum weakness, may result in slippage of a vertebra. Degenerative forms are more likely to occur in women, persons older than fifty, and African Americans.
In all subtypes of spondyloarthritis, inflammatory back pain and/or asymmetrical arthritis, mainly affecting the lower limbs, are the most common symptoms. [9] Another distinguishing characteristic is enthesitis, which is inflammation at the locations where ligaments, tendons, or joint capsules adhere to bone.
When examining the vertebra, the pars interarticularis is the bony segment between the superior and inferior articular facet joints located anterior to the lamina and posterior to the pedicle. Separation of the pars interarticularis occurs when spondylolysis is present in the spinal column.