Surgeon variation in rates of surgery for trapeziometacarpal osteoarthritis in the United States.

We identified wide variation in surgery for trapeziometacarpal osteoarthritis among surgeons in the United States, with 42% performing no surgery, a median rate of surgery of 1.9/year, and 2% performed more than 30 procedures annually, representing 15% of all surgical procedures for TMC arthritis.