Infrapatellar bursitis

Infrapatellar bursitis is inflammation of the superficial or deep infrapatellar bursa.[3] Symptoms may include knee pain, swelling, and redness just below the kneecap.[2] It may be complicated by patellar tendonitis.[1]

Infrapatellar bursitis
Other names	Vicar's knee,[1] clergyman's knee[2]
Cross section of the human knee
Types	Superficial, deep[3]
Risk factors	Kneeling, crawling[4]
Diagnostic method	Based on symptom and physical examination[1]
Differential diagnosis	Patellar tendonitis, prepatellar bursitis[5]
Frequency	Relatively rare[4]

Risk factors include kneeling or crawling.[4] It may also be brought on by frequent bending of the knees while standing, squatting, running, or jumping.[1][6] Diagnosis is generally based on symptom and physical examination.[1] When the deep bursa is involved, bending the knee generally increases the pain.[2] Other conditions that may appear similar include patellar tendonitis and prepatellar bursitis.[5]

Treatment is generally by rest, alternating between ice and heat, and NSAIDs.[1] Infrapatellar bursitis is relatively rare.[4] It has also been called vicar's knee and clergyman's knee.[1][2]