Subcutaneous Olecranon Bursa

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Definition

By Gregory R. Waryasz, MD

The subcutaneous bursa of the musculoskeletal system is characterized by its location.

It is part of the elbow joint. It consists of a synovial fluid surrounded by a synovial membrane.

Its unique structural feature is that it is located in the subcutaneous tissue overlying the olecranon.

The subcutaneous olecranon bursa as well as all other bones, muscles, and ligaments of the body are derived of mesodermal origin in the embryo.

The function of the bursa is to provide a cushion between bones, tendons, and muscles. This helps to reduce friction and allow free movement of structures.

Common diseases include bursitis. Bursitis is inflammation of the bursa. It is also known as “student’s elbow”, “dart thrower’s elbow”, or “miner’s elbow”. Infective bursitis occurs when there is a bacterial infection usually transmitted from a skin abrasion.

Commonly used diagnostic procedures include clinical history, physical exam, and MRI.

It is usually treated with physical therapy and NSAIDs for bursitis. Infective bursitis requires antibiotics for treatment.

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.