Scleroderma (pronounced SKLEER-oh-der-ma) is a disease that affects your skin. When you have scleroderma, your skin gradually tightens and thickens or hardens. It can’t stretch like it used to.
Scleroderma can also change tiny blood vessels. That damages internal organs. Although it usually affects the hands, face, and feet, it can also target the digestive tract, heart and blood flow, lungs, and kidneys.
If your mother or grandmother had a knee or hip replacement, the odds are good she was in her late 60s or 70s when she opted for the surgery, and it was a "last resort" decision -- either get a new knee or start using a cane or a wheelchair.
That's not today's joint replacement surgery. With the baby boom generation hitting their 60s -- the age at which joints start to hurt and ultimately give out -- more and more people are seeking knee and hip replacements to maintain their active lifestyle.