Assistant
Definition
By Gregory R. Waryasz, MD
The elbow joint capsule of the musculoskeletal system is characterized by covering the elbow joint.
It is part of the elbow joint. It consists of a fibrous layer and an internal synovial membrane.
Its unique structural feature is that it surrounds the elbow joint by attaching to the humerus at the medial and lateral portions of the articulating surfaces of the capitellum and trochlea. Anteriorly and posteriorly it is proximal to the coronoid and the olecranon fossa.
The elbow joint capsule as well as all other bones, muscles, and ligaments of the body are derived of mesodermal origin in the embryo.
The function of the elbow joint capsule is to provide some stability to the articulation. The weakest part is the anterior and posterior portion. The collateral ligaments strengthen the medial and lateral joint capsule.
Common diseases include fracture, dislocation, and tearing.
Commonly used diagnostic procedures include clinical history, physical exam, and MRI.
It is usually treated with physical therapy and NSAIDs. Surgery can be performed either with a large open incision or performed with arthroscopy.
References
Elstrom J, Virkus W, Pankovich (eds), Handbook of Fractures (3rd edition), McGraw Hill, New York, NY, 2006.
Koval K, Zuckerman J (eds), Handbook of Fractures (3rd edition), Lippincott Williams & Wilkins, Philadelphia, PA, 2006.
Lieberman J (ed), AAOS Comprehensive Orthopaedic Review, American Academy of Orthopaedic Surgeons, 2008.
Moore K, Dalley A (eds), Clinically Oriented Anatomy (5th edition), Lippincott Williams & Wilkins, Philadelphia, PA, 2006.