The plastic surgery deals with the restoration of function and not cosmetic enhancement of the patient.
Common cases the specialty deal are the burn patient, congenital anomaly such as the cleft lip and cleft palate, and motor vehicular accident that is disfiguring.
This is the most important type of cases the plastic surgery sees. It is the bread and butter cases the department handle. After the burn, especially over the joint area, and particularly the flexor surface, upon healing of the skin causes contracture. Because of the contracture, the involved parts such as the elbow, knee, wrist and the digits of the hand can not extend. As it can not move in flexion and extension, the limbs lost its useful function properly.
A surgery is need to release these contracture and restore back the function. In so doing, it also improves the cosmetic look of the involved parts but that is not its primary intention.
Although this may looks ugly, the main intention for the surgery is that we can restore back the ability to speak and do intonation properly. And, it must be done before the child starts to talk. Once passed the age of learning how to speak, and if the surgery is not urgently done, the child will be handicapped for life. This is because the speech center in the brain lost the ability to recognize the intonation properly.
Severe disfiguring facial accident may require plastic surgery to restore various functions and to some extent the cosmetic looks. Many a time they are done rather by the maxilo-facial surgeon.
For knee joint arthritis and other body parts and joint pain treatment without drugs.