Replacement of the knee joint

Millions suffer from osteoarthritis, the most prevalent form of arthritis. The protective cartilage that cushions the bone ends breaks off over time.


Pain. Affected joints might hurt during or after movement. Stiffness. Joint stiffness might be most noticeable upon awakening or after being inactive.

When to see a doctor

If you have joint pain or stiffness that doesn't go away, make an appointment with your doctor.  


Osteoarthritis develops as joint cartilage degrades. Firm, slippery cartilage allows practically frictionless joint mobility.

Risk factor 

Older age. The risk of osteoarthritis increases with age. Sex. Women are more likely to develop osteoarthritis, though it isn't clear why.


Chronic pain is common with osteoarthritis, a degenerative illness. Joint discomfort and stiffness can make ordinary duties difficult.

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