I am male age 64..Had cartliage removal of right knee about 30 years ago..Today, Dr. x-rayed this knee, found small calcium deposit, some arthritis, and mainly, bone rubbing against bone..Pain started from jogging on treadmill...said their is a shot that might help postpone knee replacement...didn't know much about the shot...anyone know anything about this procedure...thanks for replies...ogc,Ft.Worth,tx.