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Radial Collateral Ligament of the Elbow

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Description

The lateral collateral ligament complex. The lateral collateral ligament complex consists of the lateral ulnar collateral ligament (LUCL), radial collateral ligament (RCL), and annular ligament. The LUCL runs from the lateral epicondyle and inserts on the supinator crest of the ulna and is the most important stabilizer against varus instability.[1]
Illustration of the lateral collateral ligament complex. The radial collateral ligament is labeled at the top[2]
Anatomic ligaments of the elbow. 1-A The lateral collateral ligament complex and its associated ligaments. Fig. 1-B The medial ulnar collateral ligament and its associated bundles[3]

Other Names

  • Radial collateral ligament (RCL)
  • Radial collateral ligament proper
  • Lateral collateral ligament of the elbow
  • Radial Collateral Ligament (Elbow)
  • Elbow Radial Collateral Ligament
  • Lateral Radial Collateral Ligament
  • Radial Collateral Ligament of the Humerus
  • Lateral Collateral Ligament Complex (Elbow)
  • Elbow Lateral Collateral Ligament (LCL)
  • LCL Complex of the Elbow
  • Lateral Ulnar Collateral Ligament Complex (related structure, often grouped clinically)

General

Gross Anatomy

Function

  • Static stabilizer of the elbow joint
  • Restraint to varus force

Attachments

  • Origin
    • Humeral origin is found slightly distal, anterior to lateral epicondyle
    • At the inferior aspect of the superior tubercle superior aspect of the intertubercular sulcus
    • Blends posteriorly with the origin of the lateral ulnar collateral ligament
  • Distal insertion

Clinical Significance

See Also

References

  1. ↑ Hayter, Catherine L., and Bruno M. Giuffre. "Overuse and traumatic injuries of the elbow." Magnetic Resonance Imaging Clinics 17.4 (2009): 617-638.
  2. ↑ Bain GI, Mehta JA. Anatomy of the elbow joint and surgical approaches. In: Baker CL Jr, Plancher KD, eds. Operative Treatment of Elbow Injuries. New York, NY: Springer-Verlag;2001:1 e 27.
  3. ↑ Domingue, Grayson, M. Wesley Honeycutt, and John T. Riehl. "Orthopaedic Tips: Review of Radial Head Fractures." JBJS Journal of Orthopaedics for Physician Assistants 8.3 (2020): e20.
  4. ↑ Bernholt D, Rosenberg S, Brady A, Storaci H, Viola R, Hackett T. Quantitative and Qualitative Analyses of the Lateral Ligamentous Complex and Extensor Tendon Origins of the Elbow: An Anatomic Study. Orthopaedic Journal of Sports Medicine. 2020;8(10):232596712096137.
Created by:
John Kiel on 22 October 2024 19:59:43
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Last edited:
1 April 2026 23:44:48
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