Osteoarthritis of the knee is defined as age related wear and tear of the knee joint. The joint cartilage starts getting thinner and worn which leads to exposure of bare bone surfaces which rub against each other during movement leading to pain.
Osteoarthritis of the knee also leads to the damage of ligaments and meniscus tissue which can result in 2. 2. knee laxity and instability while walking.
3. Progressive damage can also lead to deformity(inward or outward bending) of the knee joint in later stages of the disease.