Dr. Hacker replaced my left knee last year. He replaced my husband’s hip this summer. Dr. Hacker’s surgery, treatment and subsequent rehabilitation visits have been the leading cause of my successful recovery. His manner is friendly and humorous while able to clearly define everything he does and why he does it so that the patient has confidence. That confidence is reinforced long-range as after a year I am still waking up with new knees (Dr. Bates in the same office did my right knee two years ago) that make me feel and move at least ten years younger. I highly recommend Dr. Hacker and have to many friends, and if I, God forbid, have to have another limb replacement, Dr. Hacker will be the surgeon. Now, that being said, all the doctors in orthopedic group are fantastic.