Prepatellar bursa

Prepatellar bursa
Sagittal section of right knee-joint, thus showing only frontal bursae. Area of prepatellar bursa marked
Details
Latin	Bursa praepatellaris
*Anatomical terminology* [edit on Wikidata]

The prepatellar bursa is a frontal bursa of the knee joint. It is a superficial bursa with a thin synovial lining located between the skin and the patella.

Pathology

Prepatellar bursitis, also known as housemaid's knee, is a common cause of swelling and pain above the patella (kneecap), and is due to inflammation of the prepatellar bursa. It is common in people who frequently kneel, such as roofers, plumbers, carpet layers, and gardeners. It is also common in wrestlers due to the repeated impact on the knee when shooting.

Symptoms include knee pain, swelling, redness and inability to flex the knee on the affected side. Rest usually relieves symptoms. Physical exam reveals erythema, tenderness to touch, fluctuant edema over the lower pole of the patella and crepitus.

Synovial bursa and tendon sheaths

Synovial bursa

Arm	Subacromial bursa Olecranon bursa

Leg	Hip Trochanteric bursa Bursae of the knee joint Prepatellar bursa

Tendon sheaths

Arm	Vincula tendina Synovial sheath Common flexor sheath of hand Mucous sheaths on back of wrist

Leg	Mucous sheaths of the tendons around the ankle

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