Bursae and Bursitis of the knee Wheeless

Description: Anatomy:
- four bursae around knee are susecptible to and inflammatory response from direct or indirect trauma;
- prepatellar bursae is most commonly affected area (housemaids knee);
- may show significant degree of swelling;
- two bursae are infrequently affected;
- infrapatellar and deep patellar bursae;
- when dx is in must also consider fat pad impingment syndrome versus bursitis;
- fourth bursa:
- deep to pes arserinus insertion;
- rarely affected w/ bursitis (dx of exclusion)
- first r/o chondral frx, meniscal tear, or osteonecrosis;
Wheeless' Textbook of Orthopaedics