Knee osteoarthritis is the most common type of osteoarthritis. More than 10 million Americans have knee osteoarthritis. It is also the most common cause of disability in the United States. Early diagnosis and treatment help manage knee osteoarthritis symptoms. An overview of knee osteoarthritis will help you understand symptoms, diagnosis, and treatment options.
Causes of Knee Osteoarthritis
Deterioration of articular cartilage is the main problem associated with knee osteoarthritis. The condition can be caused by:
Diagnosis of Knee OsteoarthritisMedical history, physical examination, and x-rays are used to diagnose knee osteoarthritis. X-rays are very helpful, allowing the doctor to see evidence of joint space narrowing and rule out other causes of knee pain. If more detailed imaging is needed, an MRI may be ordered. Arthroscopic knee surgery is another way to view the condition of the knee.
Symptoms of Knee Osteoarthritis
Knee osteoarthritis typically develops gradually over a period of years. The primary symptoms associated with knee osteoarthritis include:
Knee osteoarthritis pain is usually worse following activity, especially overuse of the affected knee. Stiffness can worsen after sitting for prolonged periods of time. As knee osteoarthritis progresses, symptoms generally become more severe. Pain can become continuous rather than only when weight-bearing.
Treatment of Knee Osteoarthritis
Knee osteoarthritis cannot be cured but there are treatments available to help manage the symptoms. Medications, starting with acetaminophen, can help manage and relieve pain. Some patients obtain better pain relief when using NSAIDs (nonsteroidal anti-inflammatory drugs) or Celebrex, the one remaining COX-2 selective inhibitor. There are opioid analgesic medications available for patients who need stronger pain relief.
Aside from medications, other treatments include:
Getting diagnosed and treated while knee osteoarthritis is still in the early stages is most beneficial. If treated early, many people can effectively manage mild to moderate knee osteoarthritis.