Dr. Matthew W Karshner MD

What is muscular dystrophy?Muscular dystrophy is a group of disorders that cause skeletal muscle degeneration, decreased flexibility, and progressive weakness. In muscular dystrophy, the abnormal mutation of genes interferes with the production of proteins, which are needed for healthy muscle...

Osteoporosis is sometimes described as "bone thinning". It’s a disease wherein the bone’s density and quality are severely reduced. As an individual’s bones become more permeable and fragile, the susceptibility to fracture is immensely increased. Bone loss occurs silently and progressively....

Having rheumatoid arthritis means sticking to certain lifestyle practices. Rheumatoid arthritis happens due to large-scale inflammation in the body, which typically affects the joints. The condition causes immobility and severe pain as the inflamed joints makes it painful to move. Rheumatoid...

The human back is a complex structure of muscles, ligaments, bones, joints, and nerves. It is common for people to experience back problems at some point in their life for a variety of reasons. Since the pain can radiate into the back and even from other parts of the body, it is very difficult to...

What is a physiatrist?A physiatrist is a medical doctor or a doctor of osteopathic medicine who practices physiatry or physical medicine and rehabilitation. Physiatry is a branch of medicine that specializes in the prevention, diagnosis, treatment, as well as rehabilitation of disorders, which...

Oromandibular DystoniaOromandibular dystonia is a type of focal dystonia. This condition is also called cranial dystonia, in which the face, jaw, or tongue forcefully contracts and becomes difficult to open and close the mouth. Thus, a person's speech and ability to chew are affected. Cranial...