Difference between Orthosis and Prosthesis

Difference between orthosis and prosthesis:

Features	Orthosis	Prosthesis
Definition	It is a mechanical device used to maintain an anatomical and functional position of injury or diseased limb.	It is a mechanical device used to maintain an anatomical and functional position of loosed limb.
Category	It is an assistive device	It is a replacing device.
Criteria	It is temporary	It is permanent
Purposes	Support, correction, protection and prevention of damage of the limb	Function and cosmesis of the limb
Indications	Arthritis, paralysis, nerve injury, deformity etc.	Amputation
Disadvantages	v  Loss of skin integrity. v  Weakening of muscles. v  Dependency. v  Osteopenia. v  Lack of cosmesis.	v  Very expensive v  Need energy to operate. v  Heavy