The ASTM F2790 standard outlines the test methods used to test and verify the quality of Lumbar Total Facet Prostheses (FPs). Depending on the device in question, these implants may replace the natural facets of the spine using a wide variety of different designs including free-floating joints, semi-constrained third body joints, ball-and-socket articulating joints, and metallic load-bearing surfaces.
By replacing the natural facets of the spine, Lumbar Total Facet Prostheses are designed to allow proper motion and support the functional spinal units. They are used to treat facet joint pain, or to replace a diseased or dysfunctional facet joint in the spine.
The prevalence of Lumbar Total Facet Prostheses in medicine has been growing for several years. When properly implanted, these spinal prostheses can improve spine stability, provide relief from pain, and allow for nerve decompression. Unlike other treatments like spinal fusion, this treatment also preserves full spinal mobility and motion.