Background
Olecranon bursitis is a condition in which there is inflammation of the bursa that overlies the olecranon process at the proximal aspect of the ulna (see images below).
Olecranon bursitis is shown in a patient with the elbow flexed. Image © 2007 by Patrick Foye, MD, UMDNJ New Jersey Medical School.
Olecranon bursitis is shown in a patient with the elbow extended. Image © 2007 by Patrick Foye, MD, UMDNJ New Jersey Medical School.
Olecranon bursitis is shown close up in a patient, with the elbow extended. Image © 2007 by Patrick Foye, MD, UMDNJ New Jersey Medical School. The bursa is located between the ulna and the skin at the posterior tip of the elbow; because of its superficial location, the olecranon bursa is susceptible to inflammation from a variety of mechanisms, primarily either acute or repetitive (cumulative) trauma. Less commonly, the inflammation may be due to infection (septic bursitis).[1, 2, 3, 4, 5]
For excellent patient education resources, visit eMedicine's Arthritis Center. Also, see eMedicine's patient education articles Bursitis and Tendinitis.
Epidemiology
Frequency
United States
Olecranon bursitis is a relatively common condition.
Functional Anatomy
Based on its location between the ulna and the skin at the posterior tip of the elbow, the olecranon bursa functions to provide a mechanism for the skin to glide freely over the olecranon process, thereby preventing tissue tears.
Sport-Specific Biomechanics
Bursal inflammation may be caused by various mechanisms. Due to the superficial location of the olecranon bursa, it is susceptible to inflammation that is caused by acute or repetitive trauma (see images below).
Olecranon bursitis is shown in a patient with the elbow flexed. Image © 2007 by Patrick Foye, MD, UMDNJ New Jersey Medical School.
Olecranon bursitis is shown in a patient with the elbow extended. Image © 2007 by Patrick Foye, MD, UMDNJ New Jersey Medical School.
Olecranon bursitis is shown close up in a patient, with the elbow extended. Image © 2007 by Patrick Foye, MD, UMDNJ New Jersey Medical School. Acute injuries during sports activities can include any action that involves direct trauma to the posterior elbow (eg, falls). Common causes of olecranon bursal inflammation that are unrelated to sports activities include repetitive microtrauma (eg, the elbow constantly rubbing against a table during writing). Less commonly, the inflammation may be due to infection (septic bursitis).
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