Spontaneous Prepatellar Bursa Hematoma in a Patient with Mechanical Prosthetic Heart Valve

Macit Kalçık, Lütfi Öcal, Mustafa Ozan Gürsoy, Mahmut Yesi̇n, Mustafa Yıldız, Mehmet Özkan

Keywords: Warfarin, hematoma, bursa, synovial, mitral valve, heart valve prosthesis

Abstract

Prepatellar bursa hematoma is generally caused by direct trauma to the anterior aspect of the knee, resulting in extravasation of blood into a normal bursa. Spontaneous prepatellar bursa hematoma is an unusual entity. Prepatellar bursitis and septic bursitis are the other common causes of a swollen patellar bursa. Bleeding has been recognized as the major complication that limits anticoagulant treatment in patients with prosthetic mitral valve. Here, we present a case of spontaneous prepatellar bursa hematoma in a patient with prosthetic heart valve under warfarin sodium therapy.