Meniscal repairs are some of the most commonly performed knee surgeries in the United States, especially among older people. However, the surgery is often complicated by arthritis in people over the age of 65. Older people may be able to avoid the surgery by making healthy lifestyle choices. Summit Medical Group’s Eric Mirsky, MD spoke with CNBC.com about meniscal repair surgery, when it could be helpful and what older people can do to protect their knees. Read Dr. Mirsky’s advice here.