Dec 14, 2025 · L5-S1 consists of the last bone in the lumbar spine (low back), called L5, and the triangle-shaped bone under it, known as the sacrum. The sacrum is made of five fused bones—S1 is …

The L5-S1 spinal motion segment, also called the lumbosacral joint, is the transition region between the lumbar spine and sacral spine in the lower back. In this region, the curvature of the spine changes …

Aug 3, 2025 · Understand the L5-S1 spinal segment, its critical function, common problems, what symptoms to expect, and how they are typically managed.

The L5-S1 segment sits at the base of your spine, where the lumbar spine meets the sacrum. This area is crucial for movement and stability, but it’s also highly vulnerable to injury and degeneration.

Dec 31, 2025 · The fifth lumbar vertebra (or the L5 vertebra) is the largest and most inferior of the lumbar vertebrae. As the last of the lumbar vertebrae, the L5 vertebra bears more body weight than …

Nov 1, 2023 · L5, the fifth lumbar vertebra, is the lowest and largest of the lumbar vertebrae, and it plays a central role in supporting the lower back and connecting the lumbar spine to the sacrum, forming a …

The lumbar nerves are five spinal nerves which arise from either side of the spinal cord below the thoracic spinal cord and above the sacral spinal cord. They arise from the spinal cord between each …

Dec 30, 2025 · The L5-S1 is what I call the “workhorse junction” of your spine. It’s the single point where your flexible lumbar spine meets your rigid sacrum, and it bears the brunt of nearly every movement …

In this comprehensive guide, we will delve into what the L5 spine is, the common causes of L5 spine pain, the symptoms to watch for, and the most effective treatments available to alleviate the discomfort.

The L5 vertebra, or the fifth lumbar vertebra, is the lowest bone in your lumbar spine, situated just above the sacrum. It plays a crucial role in supporting your upper body, enabling movement, and protecting …