CYSTIC OSTEOLYSIS INDUCED BY SILICONE-RUBBER PROSTHESIS

  • 1 January 1984
    • journal article
    • research article
    • Vol. 108  (3) , 225-227
Abstract
Synovitic symptoms and radiologically documented cystic lesions in several carpal bones and distal radius developed 2 yr after the implantation of silicone rubber scaphoid prosthesis for pseudoarthrosis [in a patient]. Open biopsy revealed granulomatous synovitis and osteitis and foreign material in carpal tissues. Ultrastructurally dense material was found in the cytoplasm of histiocytic, often multinucleated cells. Electron-probe analysis of the material showed a definite peak for silicon, proving the causal relationship of symptoms and signs to the silicon rubber prosthesis.