What Is a Facet Joint?
A facet joint is a small, paired connection between the bones at the back of the spine. Each joint has smooth cartilage and a capsule that support controlled movement between neighboring vertebrae. Facet joints help guide bending and rotation while limiting excessive motion that could strain spinal structures.
Quick Facts About Facet Joint
Category
Spinal synovial joint
Used for
Guiding and limiting spinal motion
Common confusion
Often confused with an intervertebral disc
Also called
Zygapophyseal Joint, Z-joint
Often discussed with
Chiropractic Adjustment
Key Takeaways About Facet Joint
- Facet joints sit at the back of the spinal column.
- Their surfaces guide controlled bending and rotation.
- Facet joints are not the same as spinal discs.
How Facet Joint Works

Facet joint surfaces meet between neighboring vertebrae and guide the direction of spinal movement. A thin layer of cartilage helps the surfaces move smoothly, while a surrounding capsule supports the connection. Small nerves in and around the joint can provide information about position and movement.
Related glossary terms: Cervical Spine, Lumbar Spine, Joint Mobilization.
During a Chiropractic Adjustment, the clinician considers how the spinal segments move together. Assessment may include posture, active range of motion, and gentle hands-on examination. The practical goal is to understand whether a facet joint moves freely within its normal pattern and how nearby muscles or joints may influence that motion.

From the Advanced Injury Care Clinic team
When we assess a facet joint, we examine spinal movement, posture, and nearby muscle tension as parts of the same movement pattern. Our team uses those findings to guide the focus and technique of a Chiropractic Adjustment. We also consider whether symptoms may involve surrounding tissues, not the joint alone.
Facet Joint in Practice: A Real-World Example
A person reports stiffness during rotation after an auto collision. During a Chiropractic Adjustment evaluation, the clinician examines spinal motion and nearby muscle tension to determine how the facet joint participates in that restricted pattern.
Related Services
Related Terms
Cervical Spine
Cervical Spine is the upper section of the vertebral column that supports the head and protects…
Lumbar Spine
Lumbar Spine is the lower section of the vertebral column, located between the thoracic spine and…
Joint Mobilization
Joint Mobilization is a hands-on physical therapy technique that applies controlled movement to a joint and…
Range of Motion
Range of Motion is the amount and direction a joint can move through its available path…
Advanced Injury Care Clinic
Have Questions About Facet Joint?
Contact Advanced Injury Care Clinic for practical guidance on Facet Joint and related chiropractor work in Brentwood.
