Cartilage Damage:
Early arthritis, osteonecrosis, and injuries may lead to cartilage damage of a limited area leading to pain, stiffness, swelling, and difficulty in performing daily activities such as walking, standing, sitting for long, climbing stairs, and sitting cross-legged.
2. Meniscal Tear:
Results from injury, when one excessively bends the knee as in squatting, or due to twisting. Apart from pain, swelling, stiffness, and difficulty in walking, there may be ‘locking’.
3. Ligament Tears:
Sports injuries or accidents may cause ligaments to tear causing instability and ‘giving way’. The cruciate and collateral ligaments are commonly damaged.