The L4 and L5 vertebrae are sturdy bone structures that form the base of the lumbar portion of the spine. Each vertebra consists of a vertebral body in front and a vertebral arch at the back. The …

In this surgery, a small part of the disc material near the nerve root is taken out. A portion of the bone adjacent to the nerve root may also be trimmed to relieve compression. Laminectomy. A …

The L3-L4 disc may degenerate or herniate due to age-related changes or from trauma. When subject to acute trauma, the L3-L4 motion segment may rarely undergo facet joint dislocation, …

The term "bone spur" is a bit of a misnomer—the word "spur" implies that these bony growths are sharp and cause pain by poking some other part of the spinal anatomy. Contrary to their …

2025年2月26日 · The two lowest segments in the lumbar spine, L5-S1 and L4-L5, carry the most weight and have the most movement, making the area prone to injury. In between vertebrae …

2025年3月3日 · The L4-L5 motion segment provides a bony enclosure for the cauda equina nerves that continue down from the spinal cord. The L4 spinal nerve branches out from the …

A lumbar fusion surgery stops the motion at a painful motion segment. The fusion is not actually done at the time of the surgery; rather, the surgery sets up the conditions for the bone to heal …

Two consecutive vertebrae, such as L4-L5, stacked vertically. An intervertebral disc that has a soft inner gelatinous core surrounded by a tough fibrous covering is situated between the …

Treatment of the L3-L4 motion segment usually involves one or more of the following methods: Medication. Both over-the-counter (OTC) and prescription medications are used to treat pain …

In this stage, the new bone tissue is gradually reshaped and strengthened, as it responds to the stresses placed upon it by movement and weight bearing in the spine. During these stages, it's …