Osteoarthritis, or degenerative joint disease, affects the elderly in parts of the body where it hurts the most. A person suffering from knee osteoarthritis will most likely equate it with cardiovascular disease because the breakdown of articular cartilage of knee joints restricts movement and the patient has to follow a set regimen affecting his lifestyle.

Knee Osteoarthritis is due to injury, congenital disorder, or obesity. The deterioration of articular cartilage, a smooth and fibrous connective tissue that acts as a protective cushion, narrows the joint space between bones. In time, the cartilage becomes grooved and fragmented and surrounding bones thicken or sprout into spurs. Sometimes, there is additional swelling in the knees caused when synovium, a membrane producing a thick fluid to nourish the cartilage, becomes inflamed and produces additional fluid known as 'water of the knee'. Changes occur due to constant rubbing of joint bones leading to deformity of joints that is equally painful.

Knee osteoarthritis is diagnosed through physical and pathological examinations of joints on either side of knee including hip joints, checking on posture, and gait. Once knee Osteoarthritis is confirmed, a treatment is suggested depending on nature and extent of damage and on the personal physical history of patient. Women over 60 years of age are high risk factors for knee osteoarthritis as they spend major portion of their lives doing physically demanding work that has direct relationship with knee Osteoarthritis. Wearing high heeled shoes also aggravates the pain. In youngsters, knee osteoarthritis is hereditary or due to some injury.

Precautions such as weight reduction, changing work routine, postures, diet, avoiding injuries, participating in physiotherapy, and exercise are advised. Other methods of relief such as acupuncture, ointments, prescription drugs, magnetic pulse therapy, vitamin regimes, and topical pain relievers are temporary. Using prescription drugs and surgery should be a mutual decision between patient and doctor.