Small joint at the back of the spine connecting neighbouring vertebrae and guiding movement.
OpenStax College — CC BY 3.0. Image source.
Understanding the structure and its role
Two posterior joints generally complement the disc in connecting neighboring vertebrae. Their orientation differs between the neck, thorax and lower back, shaping the available movements. They contain cartilage, a capsule and synovium. They may contribute to pain without being locked in the sense of a bony dislocation.
Symptoms and assessment
Local or referred pain may be compatible with a facet source; extension or rotation can change symptoms. These findings are not specific. Visible arthritis does not prove that the joint is painful. Radiating pain with weakness requires assessment for accompanying nerve involvement.
Assessment considers symptom onset, distribution, restricted activities and medical history. Imaging findings must be compared with the clinical examination: a visible abnormality does not, on its own, establish the source of pain.
Management and outlook
Graded movement and strengthening can improve functional capacity. For selected persistent presentations, a specialist may consider diagnostic blocks or other procedures; these are not automatically services available at a conservative-care clinic.
For a mechanical problem without concerning findings, care aims for a gradual return to activity, individually selected exercises and measurable functional goals. Manual care may complement this approach when the examination supports it. Progress is judged through walking, sleep and daily tasks, as well as symptoms, rather than through an image alone.
When to seek prompt assessment
New or progressive weakness, newly impaired walking, loss of sensation around the saddle region, or new bladder or bowel control problems require urgent medical assessment.
Frequently asked questions
Is a facet inside the disc?
No. It lies at the back of the vertebral motion segment.
Does a clicking sound prove a correction?
No. Joint sound does not demonstrate corrected displacement or healing.
Can imaging establish the diagnosis alone?
No. Findings must fit the clinical history and examination before they guide treatment.
Should all activity stop?
Usually not: loading is adjusted and gradually increased according to tolerance and the diagnosis.
How should progress be monitored?
Track functional abilities, neurological symptoms and resumed activities so care can be adjusted.
Concept diagram showing key relationships; this is not a scan or an anatomical drawing to scale.
Role of TAGMED care
At TAGMED, this information helps clarify your history, guide assessment and determine whether conservative care is appropriate or medical referral is needed. An anatomical structure, sign or test result is not, by itself, an indication for decompression, laser, shockwave or manual treatment. Care selection depends on the cause of symptoms and your clinical circumstances.
Medical references
- OpenStax, Rice University. Anatomy and Physiology 2e — The Vertebral Column.
- American Academy of Orthopaedic Surgeons. Spine Basics.
- NIAMS, National Institutes of Health. Back Pain: Diagnosis, Treatment, and Steps to Take.
References document the topic; their inclusion does not imply endorsement of TAGMED services by those organizations.
Educational information from The Spine Page. This entry does not replace an individual assessment. Documentary version: October 12, 2026. Sylvain Desforges, B.Sc., D.O., N.D., osteopath and naturopath.
TAGMED clinic contact details
For non-urgent consultations and information about available services.
Clinique TAGMED — Terrebonne
1150, rue Lévis, Suite 200
Terrebonne (Québec) J6W 5S6
450‑704‑4447
Clinique TAGMED — Montréal
1140, avenue Beaumont
Mont-Royal (Québec) H3P 3E5
1‑877‑672‑9060