Dr. Heather Withington Harnly M.D.

Progeria or Hutchinson-Gilford progeria syndrome (HGPS), is a rare genetic condition characterized by a rapidly aging appearance in children. Newborns and infants born with this condition typically look healthy and normal, but may physically display characteristic facial features, such as prominent...

Muscular dystrophies are a group of diseases that make the muscles of the body weaker over a period of time. The muscles become less flexible in this condition. Out of the nine types of muscular dystrophy, Duchenne muscular dystrophy is one of the most common.The main characteristics of this medical...

Knee replacement surgery is a surgical procedure that involves the removal of parts of your natural knee joint and replacing them with artificial parts known as prostheses. Knee replacement is a very common procedure used to repair your knee joint.Many conditions can make your doctor decide to...

How Effective is Knee Replacement Surgery?This surgery is normally recommended for elderly people who suffer from severe pain due to osteoarthritis. It is suggested for people if the pain and stiffness in their joints affects their mobility and daily activities. One has to understand both the...

Sever's disease is a type of heel injury that usually occurs in children who are physically active. Most children experience temporary pain without long-term damage. Sever's disease was first described in 1912 by an American doctor named James Warren Sever. The condition is also called calcaneal...

What is muscular dystrophy?Muscular dystrophy is an inherited disorder, which is often characterized by a progressive type of muscular degeneration and weakness. There are several types of muscular dystrophy, wherein each type eventually leads to an increased disability, strength loss, and potential...