Procedure-specific costs and savings in a mandatory program for second opinion on surgery.

Initial examination of the surgery experience of participants in a large employer-sponsored second opinion program revealed minimal savings in medical resource costs. But closer examination of relative savings for specific procedure categories showed that the greatest savings are for high-cost procedures: hysterectomy, prostatectomy, back surgery, and hip replacement. Furthermore, a nonconfirming second opinion does not dissuade patients from some procedures. Decisions about which procedures to include in a mandatory program should consider volume, costs, and effects of nonconfirmation, as well as the advantages of a mandatory second opinion for skeptical patients, or for patients for whom a controversial procedure has been recommended.