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The Journal of Bone and Joint Surgery 79:594-6 (1997)
© 1997 The Journal of Bone and Joint Surgery, Inc.

Spontaneous Recurrent Hemarthrosis of the Knee Joint: Endovascular Treatment of a Ruptured Aneurysm with Platinum Microcoils. A Case Report*

GUENTHER E. KLEIN, M.D.{dagger}, JOHANN RAITH, M.D.{dagger}, JOERG PASSLER, M.D.{dagger}, DIETER H. SZOLAR, M.D.{dagger}, ERICH SORANTIN, M.D.{dagger} and KLAUS A. HAUSEGGER, M.D.{dagger}, GRAZ, AUSTRIA

Investigation performed at the Departments of Radiology and Orthopaedic Surgery, Karl-Franzens Medical School and University Hospital, Graz


   Introduction
 
Arterial aneurysms are a rare cause of hemarthrosis and, in the reports in which such a lesion did lead to hemarthrosis, the aneurysm was postoperative (a pseudoaneurysm)9. These pseudoaneurysms have usually been repaired operatively, although we found two reports, involving three patients, in which therapeutic embolization was performed7,10. We present a case in which massive recurrent hemarthrosis of the left knee joint occurred spontaneously because of a ruptured true aneurysm of the descending genicular artery. This artery was occluded by means of endovascular placement of platinum microcoils.


   Case Report
 
A fifty-one-year-old man was seen because of recurrent swelling of the left knee. He reported pain and tenderness and had a decreased range of motion of that knee. The patient had a three-month history of spontaneously recurring hemorrhagic effusions in the knee, which had been treated with aspiration on three occasions. Blood cultures had been negative. Arthroscopy had been performed one . . . [Full Text of this Article]


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