According to the Centers for Medicare and Medicaid services, “A brace includes rigid and semi-rigid devices that are used for the purpose of supporting a weak or deformed body member or restricting or eliminating motion in a diseased or injured part of the body.” An orthosis can be pre-fabricated or custom fabricated. Pre-fabricated orthotics are those that are ready to wear and may need minor modifications for comfort, and come in various sizes. For example, the Aspen and Donjoy LSOs are pre-fabricated and come in a variety of sizes. Custom fabricated orthotics are created from a mold, impression, or measurements of an affected area on the patient. The process of receiving some type of orthotics may take longer because they must be fabricated.