Juxta-Articular Bone Cyst

Abstract

Juxta-articular bone cyst was first described as a distinct clinical entity by Hicks in 1956 and called “intraosseous ganglion”. Hitherto, some 150 similar cases have been described.

The cyst, which is usually solitary, occurs in the epiphysis near a weight-bearing joint in middle-aged persons. It may cause persistent pain but is easily overlooked on ordinary X-rays. The histogenesis is uncertain.

Six patients treated by thorough curettage and autologous bone transplantation are presented. All achieved immediate relief from pain.

Some theoretical aspects concerning the histogenesis are discussed.

Key words:

• juxta-articular bone cyst
• painful weight-bearing joint
• primary intramedullary metaplasia of mesenchymal cells