The knee is commonly affected by arthritis, particularly osteoarthritis (OA). You may notice pain and stiffness in your knee, particularly when you first get out of bed in the morning, after sitting for a long period, climbing stairs, walking, kneeling or even when you’re just sitting still. Your knee might look swollen or feel like it might give way or buckle.
Knee arthritis typically affects patients as they get older. Symptoms are more common in patients who are overweight, and weight loss tends to reduce the severity of pain associated with knee arthritis. There is also a genetic component, meaning knee arthritis can be passed down within a family. Other factors that can contribute to developing knee arthritis include injuries to the knee, torn cartilage, and fractures to the bone around the joint.