Knee arthritis is a condition characterized by inflammation and degeneration of the knee joint. It is a common form of arthritis that typically affects older individuals, although it can occur at any age.
Osteoarthritis is the most prevalent form of knee arthritis. It occurs when the protective cartilage that cushions the ends of the bones in the knee joint gradually wears away, resulting in bone-on-bone contact. Osteoarthritis is typically age-related and can be caused by factors such as repetitive stress on the knee joint, previous injuries, obesity, and genetics.