Knee arthritis is a breakdown of the cartilage that cushions your knee joint. When the cartilage wears down, your bones rub against each other. This causes pain and stiffness. Knee arthritis tends to get worse with time.
Treatment for knee arthritis involves reducing pain, making the leg muscles stronger, and staying at a healthy body weight. The treatment usually does not improve the health of the cartilage, but it can reduce pain and improve how well your knee works.
You can take simple measures to protect your knee joints, ease your pain, and help you stay active.
Symptoms can be mild to severe. They may include pain and stiffness in the knee. You may feel stiff when you get up in the morning. You may have trouble walking. Your knee may look swollen or deformed, and it may make creaking or cracking sounds.
Courtesy of Intermountain Medical Imaging, Boise, Idaho.
Figure 1 is an X-ray of a normal knee with normal space between the bones of the upper and lower leg. Figure 2 shows bone spurs and a narrowed joint space caused by osteoarthritis.
Knee shots, or injections, can help you cope with the pain from arthritis and help you be more active.
In osteoarthritis, the cartilage that protects and cushions the joints breaks down over time. As the cartilage wears down, the bone surfaces rub against each other. This damages the tissue and bone, which then causes pain. Osteoarthritis is common in the knee joints.
Call your doctor now or seek immediate medical care if:
Watch closely for changes in your health, and be sure to contact your doctor if you have any problems.
Painful knee arthritis can keep you from being as active as you need to be. You may not walk as much. You may avoid going up and down stairs. But when you don't move that knee as much, the ligaments, tendons, and muscles around it can shorten and get weaker.
Movement also pumps fluid in and out of the joint space, which helps your knee stay healthy. When you don't move as much, you lose some of that natural pump action.
The goal of physical therapy is to make daily tasks and activities easier. For example, therapy may help with walking, going up stairs, or getting in and out of bed.
Physical therapists provide treatments you may need when knee pain makes it hard to move around and do everyday tasks. These treatments may help you move better and relieve pain.
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