A professional who assists prosthetist in providing care to and fabricating and fitting prostheses for patients with partial or total absence of limb. Responsibilities include:

• Under direction of prosthetist, makes assigned casts, measurements, and model modifications.
• Performs fitting, including static and dynamic alignments.
• Evaluates prosthesis on patient to ensure fit, function, and quality of work.
• Repairs and maintains prostheses.
• May be responsible for performance of other personnel.
• May also perform functions of orthotics assistant .