Robert Purchase, MD is an orthopedic surgeon in San Francisco, CA specializing in surgery of the shoulder and knee. Dr. Purchase is board certified in orthopedic surgery and was trained by some of the very best in shoulder and knee surgery. In addition to completing a residency in orthopedic surgery and a postdoctoral fellowship in sports medicine, he has devoted his career to the care and treatment of all shoulder and knee problems. For those Bay Area patients who are seeking great care and treatment, Dr. Purchase utilizes minimally invasive techniques to treat rotator cuffs, shoulder dislocations, meniscus tears, ACL injuries, and many more.