Erosive silicone synovitis.

Although erosive silicone synovitis is an unusual complication of implant arthroplasty, its recognition is important. The authors describe three patients in whom this complication occurred after Silastic replacements of the carpal scaphoid and trapezium bones. Intercarpal arthrodesis is suggested as a form of stress shielding for the implants. Regular, long-term follow-up of patients with these Silastic implants is recommended.