OWL: OCOSH Classification/Joint Diseases/Bursitis

Bursitis eMedicine Emergency

Eileen Chang, MD & Janet Talbot-Stern, MD — 2008-04-10 14:25:47 GMT

Bursitis is inflammation of a bursa caused by repetitive use, trauma, infection, or systemic inflammatory disease. Bursae are flattened sacs that serve as a protective buffer between bones and overlapping muscles (deep bursae) or between bones and tendons/skin (superficial bursae). These synovial-lined sacs are filled with minimal amounts of fluid to facilitate movement during muscle contraction. Deep bursae, such as the subacromial and iliopsoas bursae, are located in the fascia. Superficial bursae, such as the olecranon and prepatellar bursae, are located in the subcutaneous tissue. Humans have approximately 160 bursae. Bursitis most commonly affects the subacromial, olecranon, trochanteric, prepatellar, and infrapatellar bursae. Symptoms of bursitis may include localized tenderness, edema, erythema, and/or reduced movement.
Synonyms and related keywords: bursal synovitis, inflammation of a bursa, deep bursae, superficial bursae, subacromial bursitis, subdeltoid bursitis, polymyalgia rheumatica, olecranon bursitis, lunger elbow, iliopsoas bursitis, trochanteric bursitis, rheumatoid arthritis, osteoarthritis,Patrick-Fabere test, ischial bursitis, weaver bottom, prepatellar bursitis, housemaid knee, carpet-layer knee, beat knee, infrapatellar bursitis, clergyman knee, anserine bursitis, calcaneal bursitis, overuse injuries, gout, pseudogout, ankylosing spondylitis, psoriatic arthritis, scleroderma, systemic lupus erythematosus, pancreatitis, Whipple disease, oxalosis, uremia, hypertrophic osteoarthropathy, idiopathic hypereosinophilicsyndrome, infective bursitis, septic bursitis
Eileen Chang, MD & Janet Talbot-Stern, MD 2006

Bursitis eMedicine Orthopedics

Gonsalves & Root — 2008-04-10 14:25:47 GMT

Bursae are saclike structures between skin and bone or between tendons, ligaments, and bone. They are lined by synovial tissue, which produces fluid that lubricates and reduces friction between these structures. Bursitis occurs when the synovial lining becomes thickened and produces excessive fluid, leading to localized swelling and pain.
Synonyms and related keywords: overuse injury, bursal inflammation, Baker's cyst, Baker cyst, gout, pseudogout, subacromial bursitis, subscapular bursitis, olecranon bursitis, ischiogluteal bursitis, greater trochanter bursitis, medial collateral ligament bursitis, pes anserine bursitis, prepatellar bursitis, retrocalcaneal bursitis, PRICEMM
Gonsalves & Root 2007

Bursitis.org

Andrew Stephens — 2007-07-14 14:25:47 GMT

The bursa is what cushions the tendon and thereby helps prevent friction between the tendon and the bone. Unfortunately, constant rubbing of the tendon over the bone with high amounts of repetitive arm, shoulder, hip, knee and ankle motion can lead to enough friction of the bursa itself to cause the inflammation and irritation of the bursa called bursitis.

Cystic Lesions about the Knee eMedicine Orthopedics

David M Gonzalez, MD — 2008-04-04 14:25:47 GMT

Cysts can occur in many shapes and forms around the knee. A cyst is defined as a closed cavity, or sac, that is lined with epithelium. It can contain liquid or semisolid material, can be normal or abnormal, and can occur in soft tissue or in bone. Benign or malignant masses must be distinguished from cystic lesions. This article discusses benign cysts that occur in the soft tissue around the knee or outside bone and that are filled with fluid or semisolid material. The understanding of various knee cysts is highly dependent on a thorough knowledge of the anatomy of the knee, which is a highly mobile structure. Bursae, sacs or saclike structures that are located at places where friction develops between the soft tissues and around the bony prominences, line many of the ligaments, tendons, and bony prominences around the knee. They can be lined with synovium and respond much the way synovium does to insults and pathologic conditions. Bursae can fill with fluid, and this accounts for the large majority of cysts seen around the knee.
Synonyms and related keywords: benign soft tissue cysts about the knee, knee cysts, meniscal cysts, popliteal cysts, bursae, bursitis, housemaid's knee, carpet layer's knee, fluid cyst, semisolid cyst, ganglion cysts, intraneural cysts, popliteal artery cysts, rheumatoid arthritis, osteoarthritis, blood-filled bursae, pus-filled bursae, myxoid intraneural cysts
Author: David M Gonzalez, MD 2007

Pes Anserinus Bursitis eMedicine PMR

Glencross & Little — 2008-04-10 14:25:47 GMT

Pes anserine bursitis is an inflammatory condition of the medial knee, especially common in certain patient populations, often coexisting with other knee disorders.
Synonyms and related keywords: anserine bursitis, anserine bursitis syndrome, conjoined tendon, breast-stroker's knee, pes anserine bursitis, pes anserinus, pes anserinus tendino-bursitis, pes anserinus tendinobursitis, pes anserinus tendino-bursitis syndrome, PATB, PA
Glencross & Little 2006