Prepatellar bursa
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| Prepatellar bursa | |
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| Sagittal section of right knee-joint, thus showing only frontal bursae. Area of prepatellar bursa marked | |
| Latin | Bursa praepatellaris |
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.
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.
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