The subfascial prepatellar bursa is the middle of the three possible prepatellar bursae, lying beneath the deep fascia in front of the patella. It sits deep to the subcutaneous prepatellar bursa and superficial to the subtendinous prepatellar bursa.
| Location | In front of the patella, between the deep fascia and the fibres of the quadriceps tendon passing over the patella |
|---|---|
| Nearby |
|
Allows the deep fascia to move over the front of the patella during knee flexion and extension
Prepatellar bursitis may involve this deeper layer as well as the subcutaneous bursa, which matters for aspiration and surgical excision. Not every knee has all three prepatellar bursae, and adjacent bursae may communicate.
Swelling and tenderness in front of the patella from inflammation of the subfascial bursa, often from repeated kneeling, which can coexist with subcutaneous prepatellar bursitis.
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