- The Subject is at least 18 years of age and no older than 44 years of age. Subject or legally acceptable representative must able to understand what he/she is being asked to do, willing/able to understand and sign the Informed Consent to return for the required follow-up visits at 2 weeks, 3 months, 6 months, and 12 months post-surgery. A legally acceptable representative may sign the Informed Consent on the patient's behalf.