Ulnar Collateral Ligament
Description
-
![Anatomy of the UCL[1]](/w/images/thumb/0/03/Elbow_UCL_anatomy.jpeg/120px-Elbow_UCL_anatomy.jpeg)
Anatomy of the UCL[1] -
![(A) Anterior and (B) medial views of an elbow, demonstrating the 3 bundles of the ulnar collateral ligament (UCL) and the relationship between the anterior bundle of the UCL and the musculotendinous insertions of the flexor pronator mass, with the footprints represented by different colors. ABUCL, anterior bundle of the UCL; FCU, ulnar carpi ulnaris; FDS, flexor digitorum superficialis; OBUCL, oblique bundle of the UCL; PBUCL, posterior bundle of the UCL.[2]](/w/images/thumb/0/03/Anterior_medial_elbow_anatomy.jpeg/120px-Anterior_medial_elbow_anatomy.jpeg)
(A) Anterior and (B) medial views of an elbow, demonstrating the 3 bundles of the ulnar collateral ligament (UCL) and the relationship between the anterior bundle of the UCL and the musculotendinous insertions of the flexor pronator mass, with the footprints represented by different colors. ABUCL, anterior bundle of the UCL; FCU, ulnar carpi ulnaris; FDS, flexor digitorum superficialis; OBUCL, oblique bundle of the UCL; PBUCL, posterior bundle of the UCL.[2]
![Anatomy of the UCL[1]](/File:Elbow_UCL_anatomy.jpeg)
![(A) Anterior and (B) medial views of an elbow, demonstrating the 3 bundles of the ulnar collateral ligament (UCL) and the relationship between the anterior bundle of the UCL and the musculotendinous insertions of the flexor pronator mass, with the footprints represented by different colors. ABUCL, anterior bundle of the UCL; FCU, ulnar carpi ulnaris; FDS, flexor digitorum superficialis; OBUCL, oblique bundle of the UCL; PBUCL, posterior bundle of the UCL.[2]](/File:Anterior_medial_elbow_anatomy.jpeg)
Alternative Names
- Elbow Medial Collateral Ligament
Anatomy
- Anterior Oblique Ligament (AOL)
- Sometimes referred to as anterior bundle
- Origin: Medial Epicondyle
- Insertion: Sublime tubercle
- Can be subdivided into anterior band and posterior band
- Posterior Oblique Ligament (Posterior Bundle)
- Transverse Ligament (Ligament of Cooper)
Actions
- Anterior Oblique Ligament
- Anterior band: isometric strain during range of motion
- Posterior band: increasing strain with increased elbow flexion
- Posterior Oblique Ligament
- Increase tension as flexion increases
Clinical Significance
See Also
- ↑ Zaremski, Jason L., Kevin R. Vincent, and Heather K. Vincent. "Elbow ulnar collateral ligament: injury, treatment options, and recovery in overhead throwing athletes." Current Sports Medicine Reports 18.9 (2019): 338-345.
- ↑ Frangiamore, Salvatore J., et al. "Qualitative and quantitative analyses of the dynamic and static stabilizers of the medial elbow: an anatomic study." The American Journal of Sports Medicine 46.3 (2018): 687-694.
Created by:
John Kiel on 29 December 2019 01:23:39
Authors:
Last edited:
8 December 2025 02:41:59
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