Ligament connecting the atlas lateral masses behind the dens and helping hold the dens against the anterior arch of C1.
Anatomy
Organization and role
It is an important atlantoaxial stabilizer. Its integrity matters in some C1 fractures and in diseases that can cause upper cervical instability.
Clinical relevance and investigation
Suspected rupture after trauma requires specialist assessment. Pain severity does not determine stability; mobilization should wait until appropriate evaluation.
Points to consider
Stability depends on bones, capsules, ligaments, discs and muscles working together. Naming a joint or ligament does not establish injury. After trauma, their integrity must be considered before therapeutic mobilization.
Role of TAGMED care
At TAGMED, assessment aims to understand symptoms, history and functional limitations. Manual care and osteopathy, motorized spinal decompression, laser and shockwave have different indications. The term described in this entry is not enough to select any of these modalities. Their relevance, limitations and possible contraindications should be discussed in relation to diagnosis and individual goals.
Related concepts and distinctions
These concepts belong to the same field, but are not synonyms.
- Alar ligaments — Paired ligaments connecting the sides of the dens to the occipital region and helping limit excessive craniocervical movement.
- Nuchal ligament — Posterior midline fibrous structure of the neck, functionally continuous with the supraspinous ligament and providing attachment for several neck muscles.
- Intertransverse ligaments — Ligaments connecting transverse processes of adjacent vertebrae and contributing to the restraint of some lateral movements.
Conceptual guide: Transverse ligament of the atlas. Blocks summarize useful relationships; they are not an individual anatomical image.
Medical references
- OpenStax, Rice University. Anatomy and Physiology 2e — The Vertebral Column.
- Radiological Society of North America. RadLex Radiology Lexicon — terminology resource.
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 13, 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
