What Is the Lumbar Spine?
The lumbar spine is the lower section of the back, located between the thoracic spine and the sacrum. It contains vertebrae, discs, joints, nerves, and supporting muscles. This region helps support body weight, allows bending and twisting, and can produce back or leg symptoms when nearby nerves become irritated or compressed.
Quick Facts About Lumbar Spine
Category
Lower back anatomy
Used for
Locating back and leg symptoms
Common confusion
The lumbar spine is not the spinal cord
Also called
Lower Spine, Lower lumbar spine
Often discussed with
Lumbar Radiculopathy Treatment
Key Takeaways About Lumbar Spine
- It sits between the mid-back and the sacrum.
- Its nerves can affect the lower back, hip, and leg.
- Lumbar spine does not mean the spinal cord itself.
How Lumbar Spine Works
The lumbar spine carries much of the body's load during standing, walking, bending, and lifting. Vertebrae form its bony framework. Discs sit between the vertebrae and help absorb movement. Small joints guide motion, while muscles and ligaments help control the area.
Related glossary terms: Nerve Root, Dermatome, Foraminal Stenosis.
Nerves leave the lower spine through openings between the bones. These nerves can carry signals to the back, buttock, hip, and leg. A clinical exam may compare pain, strength, sensation, and movement to identify whether symptoms fit a lumbar nerve pattern.
Lumbar radiculopathy describes symptoms linked to irritation of a nerve root in this region. The term describes the location and body structures involved, not one single cause.
From the Premier Injury Specialists team
When we assess the lumbar spine, we connect the reported symptoms with the exam findings and available records. Our team checks whether pain, numbness, tingling, or weakness follows a pattern that may involve a lumbar nerve root. We use that information when planning lumbar radiculopathy treatment.
Lumbar Spine in Practice: A Real-World Example
A person with lower back pain and tingling that travels down the leg may have symptoms linked to the lumbar spine. During lumbar radiculopathy treatment, the evaluation focuses on whether the pattern matches irritation of a nearby nerve root.
Related Services
Related Terms
Nerve Root
A nerve root is a bundle of nerve fibers that leaves the spinal cord through an…
Dermatome
A dermatome is an area of skin supplied by sensory nerves from one spinal nerve root…
Foraminal Stenosis
Foraminal Stenosis is a narrowing of the openings between spinal bones where nerve roots leave the…
Disc Bulge
A Disc Bulge is a spinal disc change where the disc extends outward beyond its usual…
Premier Injury Specialists
Have Questions About Lumbar Spine?
Contact Premier Injury Specialists for practical guidance on Lumbar Spine and related pain management physician work in Stockbridge.