Orthotists and prosthetists typically do the following:

• Evaluate and interview patients to determine their needs
• Take measurements or impressions of the part of a patient's body that will be fitted with a brace or artificial limb
• Design and fabricate orthopedic and prosthetic devices based on physicians' prescriptions
• Select materials to be used for the orthotic or prosthetic device
• Instruct patients in how to use and care for their devices
• Adjust, repair, or replace prosthetic and orthotic devices
• Document care in patients' records

Orthotists and prosthetists may work in both orthotics and prosthetics, or they may choose to specialize in one area. Orthotists are specifically trained to work with medical supportive devices, such as spinal or knee braces. Prosthetists are specifically trained to work with prostheses, such as artificial limbs and other body parts.

Some orthotists and prosthetists construct devices for their patients. Others supervise the construction of the orthotic or prosthetic devices by medical appliance technicians.