Pes anserine bursitis is defined as what?

Pes anserine bursitis is defined as what?

• A. Inflammation of the IT band at the lateral knee
• B. Inflammation of the suprapatellar bursa
• C. Pes anserine bursa just distal to the medial knee joint
• D. Inflammation of the popliteal bursa at the posterior knee

Answer: (C)

The key idea is knowing where the pes anserine bursa is and that bursitis here means inflammation of that specific medial knee bursa. The pes anserine bursa lies just distal to the medial knee joint, beneath the insertion of the sartorius, gracilis, and semitendinosus tendons on the medial tibia. Inflammation in this location causes medial knee pain and tenderness just below the medial joint line, which matches the description of pes anserine bursitis. The other options point to inflammation at other knee bursae or structures: the IT band at the lateral knee, the suprapatellar bursa above the patella, and the popliteal (Baker’s) bursa at the posterior knee.

The key idea is knowing where the pes anserine bursa is and that bursitis here means inflammation of that specific medial knee bursa. The pes anserine bursa lies just distal to the medial knee joint, beneath the insertion of the sartorius, gracilis, and semitendinosus tendons on the medial tibia. Inflammation in this location causes medial knee pain and tenderness just below the medial joint line, which matches the description of pes anserine bursitis. The other options point to inflammation at other knee bursae or structures: the IT band at the lateral knee, the suprapatellar bursa above the patella, and the popliteal (Baker’s) bursa at the posterior knee.