Lunate Silastic arthroplasty in Kienbock's disease.

The use of Silastic lunate replacement for Kienbock's disease has many advocates. We reviewed the long-term results of eight patients who had this procedure performed. Although good short-term results were obtained, this was not maintained and only two patients were regarded as satisfactory at an average follow-up time of 44 months. Evidence of synovitis was apparent in seven cases. It is now our view that if surgical intervention is necessary for this condition, the best surgical option is probably a scapho-trapezio-trapezoid fusion.