The disc and motion segment are named by the vertebral body above and below for example, the disc and motion segment between the L4 and L5 vertebrae are called the L4-L5 disc and the L4-L5 motion segment.įusion of a motion segment typically involves creating a living bone bridge between the two surrounding vertebrae, either behind the disc between the posterior bony elements, through the disc space, or both. At each spinal level, motion is controlled by a disc and a pair of facet joints. The lumbar spine (low back) has 5 mobile spinal levels from L1 to S1, also known as motion segments. This article provides a complete guide to multilevel spinal surgeries, including when they may be indicated, the surgical approaches, potential benefits and risks, and what a typical recovery period may include. In the lower back, a multilevel spinal fusion surgery involves the fusion of two or more motion segments between the first lumbar vertebra, L1, and the first sacral vertebra, S1. A spinal x-ray or magnetic resonance imaging (MRI) scan confirms degenerative changes or malalignment at more than one level.Nonsurgical pain management, such as medication, physical therapy, and injection treatments, have been tried for several months or longer without satisfactory improvement.The patient’s quality of life is significantly affected due to lower back pain and functional limitations.Single- versus multilevel fusion for single-level degenerative spondylolisthesis and multilevel lumbar stenosis: four-year results of the spine patient outcomes research trial. Typically, spine surgeons recommend multilevel spinal fusion whenġ Smorgick Y, Park DK, Baker KC, et al.
This surgery is designed to improve spinal stability and reduce pain in conditions that cause spinal malalignment or spinal degeneration. A multilevel spinal fusion surgery involves fusing 2 or more motion segments of the spine to become one single unit.
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