In-depth

Avascular necrosis

Loss of blood flow to a bone leads to avascular necrosis — the death of bone tissue. This most commonly affects the thighbone, causing groin pain.

Knee pain

Find out what could cause knee pain.

Osteoarthritis

The wear and tear of aging may take a toll on your joints. Find out how to manage osteoarthritis.

Rheumatoid arthritis

Rheumatoid arthritis causes joint pain and swelling. Find out how it's treated and how to cope.

Stickler syndrome

Stickler syndrome can affect multiple parts of your body, including your eyes, face, ears, bones and joints.

Water on the knee

Water on the knee refers to excess fluid inside or around your knee joint. Find out what causes this common knee problem.

Oct. 30, 2012