Recurrent Haemarthrosis after Total Knee Arthroplasty: Investigation and Management

Recurrent haemarthrosis is a relatively rare complication of total knee arthroplasty, and only a few cases have been reported; hence, it is hard to determine comprehensive diagnosis and treatment guidelines. We report a case of haemarthrosis in 50-year-old male patient 14 months postoperatively. Investigations (ultrasound, aspiration, and arthroscopy) and managements (non-surgical, arthroscopy and open exploration) were performed, and the clinical effects of these interventions were analyzed separately. Clinical evidence indicates that the cause of this case was rupture of a pseudoaneurysm of the medial superior genicular artery. A brief review is involved in discussion part.