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Ulnar collateral ligament of the elbow
Marc Safran1, Christopher S Ahmad, Neal S Elattrache
1Section of Sports Medicine, Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California 94143-0728, USA. safranm@orthosurg.ucsf.edu
Summary
The ulnar collateral ligament (UCL) in overhead athletes is more frequently injured than previously believed, often leading to secondary elbow problems. This review covers UCL anatomy, injury mechanisms, and comprehensive diagnosis and treatment strategies.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Anatomy
Background:
- The ulnar collateral ligament (UCL) is crucial for elbow stability in overhead athletes.
- Overhead and repetitive valgus stress activities commonly injure the UCL.
- UCL injuries can cause secondary issues affecting the ulnar nerve, flexor-pronator unit, and radiocapitellar joint.
Purpose of the Study:
- To review the anatomy, biomechanics, and pathophysiology of elbow UCL injuries.
- To discuss secondary injuries resulting from UCL damage.
- To outline diagnostic and treatment approaches for UCL injuries in athletes.
Main Methods:
- Review of current literature on UCL injuries in overhead athletes.
- Discussion of anatomical and biomechanical factors contributing to UCL injury.
- Synthesis of diagnostic methods, including patient history, physical examination, and confirmatory tests.
- Overview of treatment options for UCL injuries.
Main Results:
- UCL injuries are more prevalent than previously recognized in overhead athletes.
- Valgus stress from sports activities is a primary cause of UCL tears.
- UCL injuries can lead to a cascade of problems in adjacent elbow structures.
Conclusions:
- Understanding UCL anatomy and biomechanics is key to diagnosing and treating elbow injuries in athletes.
- Comprehensive evaluation including history, physical exam, and diagnostic tests is essential.
- Effective management of UCL injuries requires a thorough understanding of associated pathologies and treatment options.
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