Prosthetics
Prosthetics is a branch of the medical profession dealing with the design, production, and use of artificial body parts. All prostheses is designed for functional or cosmetic reasons or both.
Orthotics
Orthotics is a branch of the medical profession dealing with the design, production, and use of external supportive devices in the treatment of orthopedic disorders.
Pedorthics
Pedorthics is the design, manufacture, modification and fit of footwear, shoes and foot orthoses to alleviate problems caused by disease, overuse, congenital condition or injury.