What Is a Facet Joint?
A Facet Joint is a small joint between the bones at the back of the spine. Facet joints guide spinal movement and help connect nearby vertebrae. Each joint has cartilage and a thin capsule that may become irritated from injury, arthritis, or repeated stress, causing pain near the affected part of the spine. For more detail, see Facet Joint Injections Companies Worth Comparing in Stockbridge (2026).
Quick Facts About Facet Joint
Category
Spinal joint
Used for
Guiding spinal movement
Common confusion
Often confused with spinal discs
Also called
Zygapophyseal Joint, Z-joint
Often discussed with
Facet Joint Injections, Medial Branch Blocks
Key Takeaways About Facet Joint
- Facet joints sit behind the spinal bones.
- Pain often stays near the affected spinal level.
- Facet joints are not the same as spinal discs.
How Facet Joint Works

A Facet Joint connects the back portions of nearby vertebrae. Its smooth cartilage lets the spine bend and turn. A joint capsule surrounds the area and contains small nerves that can send pain signals.
Related glossary terms: Lumbar Spine, Medial Branch, Axial Pain.
Facet joints help limit excessive spinal movement. Irritation may cause pain near the neck, mid-back, or lower back. The pain can worsen when you lean backward, twist, or stay in one position. A clinician checks your symptoms, movement, and imaging when deciding whether a facet joint may be involved.
Medial Branch nerves carry signals from many facet joints. A diagnostic block may briefly numb these nerves to help identify the pain source. Facet joint injections place medicine near the joint and may help reduce local inflammation.

From the Premier Injury Specialists team
When we assess facet joint pain, we review the pain pattern, movement limits, examination findings, and available imaging. We also consider nearby discs, nerves, and muscles because several structures can cause similar symptoms. For Facet Joint Injections, we use the clinical picture to guide the treatment plan.
Facet Joint in Practice: A Real-World Example
A person with lower back pain may feel worse when standing upright or leaning backward. After an evaluation, the care plan may include a Facet Joint Injection to assess and treat pain linked to an irritated joint.
Related Services
Related Terms
Lumbar Spine
The lumbar spine is the lower section of the back, located between the thoracic spine and…
Medial Branch
A medial branch is a small nerve branch that carries pain signals from the facet joints…
Axial Pain
Axial Pain is pain that stays mainly in the spine or nearby tissues, such as the…
Inflammation
Inflammation is the body’s response to irritation, injury, or disease. It involves changes in nearby tissues…
Premier Injury Specialists
Have Questions About Facet Joint?
Contact Premier Injury Specialists for practical guidance on Facet Joint and related pain management physician work in Stockbridge.
