Coracoclavicular ligament

The coracoclavicular ligament is a ligament of the shoulder. It connects the clavicle to the coracoid process of the scapula.

Coracoclavicular ligament
The left shoulder and acromioclavicular joints, and the proper ligaments of the scapula.
Glenoid fossa of right side.
Details
From	Coracoid process
To	Clavicle
Identifiers
Latin	ligamentum coracoclaviculare
TA98	A03.5.03.004
TA2	1747
FMA	26029
Anatomical terminology [edit on Wikidata]

Structure

The coracoclavicular ligament connects the clavicle to the coracoid process of the scapula.^[1] It is not part of the acromioclavicular joint articulation, but is usually described with it, since it keeps the clavicle in contact with the acromion. It consists of two fasciculi, the trapezoid ligament in front, and the conoid ligament behind.^[2] These ligaments are in relation, in front, with the subclavius muscle and the deltoid muscle; behind, with the trapezius.

Variation

The insertions of the coracoclavicular ligament can occur in slightly different places in different people.^[3] It may contain three fascicles rather than two.^[3]

Function

The coracoclavicular ligament is a strong stabilizer of the acromioclavicular joint.^[2] It is also important in the transmission of weight of the upper limb to the axial skeleton. There is very little movement at the AC joint.^{[citation needed]}

Clinical significance

The coracoclavicular ligament may be damaged during a severe dislocated clavicle.^[2] Damage may be repaired with surgery.^[4]

References

This article incorporates text in the public domain from page 315 of the 20th edition of Gray's Anatomy (1918)

1. Moya, Daniel; Poitevin, Luciano A.; Postan, Daniel; Azulay, Guillermo A.; Valente, Sergio; Giacomelli, Fernando; Mamone, Luis A. (December 2018). "The medial coracoclavicular ligament: anatomy, biomechanics, and clinical relevance—a research study". JSES Open Access. 2 (4): 183–189. doi:10.1016/j.jses.2018.07.001. ISSN 2468-6026. PMC 6334871. PMID 30675592.
2. Klassen, Jeffrey F.; Morrey, Bernard F.; An, Kai-Nan (1 April 1997). "Surgical anatomy and functionof the acromioclavicular and coracoclavicular ligaments". Operative Techniques in Sports Medicine. Injuries to the Acromioclavicular Joint in the Throwing Athlete. 5 (2): 60–64. doi:10.1016/S1060-1872(97)80015-9. ISSN 1060-1872.
3. Harris, Richard I.; Vu, Dzung H.; Sonnabend, David H.; Goldberg, Jerome A.; Walsh, William R. (1 November 2001). "Anatomic variance of the coracoclavicular ligaments". Journal of Shoulder and Elbow Surgery. 10 (6): 585–588. doi:10.1067/mse.2001.118480. ISSN 1058-2746. PMID 11743540.
4. Harris, Richard I.; Wallace, Andrew L.; Harper, Gareth D.; Goldberg, Jerome A.; Sonnabend, David H.; Walsh, William R. (1 January 2000). "Structural Properties of the Intact and the Reconstructed Coracoclavicular Ligament Complex". The American Journal of Sports Medicine. 28 (1): 103–108. doi:10.1177/03635465000280010201. ISSN 0363-5465. PMID 10653552. S2CID 20444622.

External links

• Diagram at ouhsc.edu