Arthritis is basically inflammation of one or more joints characterized by pain, limitation of movement and swelling. There are several forms of arthritis:
Osteoarthritis is the most common cause of knee pain among people over the age 40. This slowly progressing degenerative disease is caused by deterioration of the knee’s cartilage, the moist elastic tissue that serves as the bone’s shock absorber.
Pain from osteoarthritis can also be brought by prolonged inactivity. Although at first, resting can alleviate the pain, the problem may become more severe as the condition progresses over time.
Rheumatoid arthritis is a disease that affects mostly women between the ages of 20 and 50 years old. It is a condition where one’s immune system haywires and starts mistaking healthy tissue for foreign matter that needs to be destroyed. It particularly attacks the body’s joint lining or synovial membrane first, which is the one responsible for holding fluid that nourishes and moistens the cartilage.
Rheumatoid arthritis does not only affect the joints, it can also wreak havoc on the eyes, lungs, heart, blood vessels and other organs.
Knee injuries brought about by accidents or mishaps can increase your likelihood of developing post-injury arthritis. When you damage your ligament or cartilage, it may not heal properly and cause misalignment in the joint. This leads to aggravated wear and tear. An injury can also be in form of a hairline fracture of the bone, which doesn’t really hurt at first but sets the stage for post-injury arthritis later on. Many retired athletes whose sport heavily uses their joints are affected by post-injury arthritis. Examples of such sports include running, playing tennis, weightlifting, and baseball.