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Osteoarthritis

What is osteoarthritis?

Osteoarthritis is the most common form of arthritis. It is a chronic degenerative joint disease that affects mostly middle-aged and older adults. Osteoarthritis causes the breakdown of joint cartilage. It can occur in any joint, but it most often affects the hands, knees, hips, or spine.

What causes osteoarthritis?

Osteoarthritis can be classified as primary or secondary. Primary osteoarthritis has no known cause. Secondary osteoarthritis is caused by another disease, infection, injury, or deformity. Osteoarthritis starts with the breakdown of cartilage in the joint. As the cartilage wears down, the bone ends may thicken and form bony growths (spurs). Bone spurs interfere with joint movement. Bits of bone and cartilage may float in the joint space. Fluid-filled cysts may form in the bone and limit joint movement.

Who is at risk for osteoarthritis?

The risk factors of osteoarthritis include:

  • Heredity. Slight joint defects or double-jointedness (laxity) and genetic defects may contribute to osteoarthritis.
  • Excess weight. Being overweight or obese can put stress on such joints as the knees over time.
  • Injury or overuse. Severe injury to a joint, such as the knee, can lead to osteoarthritis. Injury may also result from overuse or misuse over time.

What are the symptoms of osteoarthritis?

The most common symptom of osteoarthritis is pain after overuse or inactivity of a joint. Symptoms usually develop slowly over years. Symptoms can occur a bit differently in each person, and may include:

  • Joint pain
  • Joint stiffness, especially after sleep or inactivity
  • Less movement in the joint over time
  • A grinding feeling of the joint when moved, as the cartilage wears away (in more advanced stages)

The symptoms of osteoarthritis can be like other health conditions. Make sure to see your health care provider for a diagnosis.

How is osteoarthritis diagnosed?

The process starts with a medical history and a physical exam. You may also have x-rays. This test uses a small amount of radiation to create images of bone and other body tissues.

How is osteoarthritis treated?

Treatment will depend on your symptoms, your age, and your general health. It will also depend on how severe the condition is. The goal of treatment is to reduce joint pain and stiffness, and improve joint movement. Treatment may include:

  • Exercise. Regular exercise, including stretching and strengthening, may help reduce pain and other symptoms.
  • Heat treatment. Treating the affected joint with heat may help reduce pain.
  • Physical and occupational therapy. These types of therapy may help to reduce joint pain, improve joint flexibility, and reduce joint strain. Splints and other assistive devices may also be used.  
  • Weight maintenance. Keeping a healthy weight or losing weight if needed may help to prevent or reduce symptoms.
  • Medications.These may include pain relievers and anti-inflammatory medications. Either may be taken by mouth as a pill, or rubbed on the skin as a cream.
  • Injections of thick liquids into the joints. These liquids mimic normal joint fluid.
  • Joint surgery. Surgery may be needed to repair or replace a severely damaged joint.

Talk with your health care providers about the risks, benefits, and possible side effects of all medications.

What are the complications of osteoarthritis?

Because osteoarthritis causes joints to degenerate over time, it can cause disability. It can cause pain and movement problems that cause a person to be less able to carry out normal daily activities and tasks.

Living with osteoarthritis

Although there is no cure for osteoarthritis, it is important to help keep joints functioning by reducing pain and inflammation. Work on a treatment plan with your health care provider that includes medication and therapy. Work on lifestyle changes that can improve your quality of life. Lifestyle changes include:

  • Weight loss. Extra weight puts more stress on weight-bearing joints, such as the hips and knees.
  • Exercise. Some exercises may help reduce joint pain and stiffness. These include swimming, walking, low-impact aerobic exercise, and range-of-motion exercises. Stretching exercises may also help keep the joints flexible.
  • Activity and rest. To reduce stress on your joints, alternate between activity and rest. This can help protect your joints and lessen your symptoms.
  • Use of assistive devices. Canes, crutches, and walkers can help to keep stress off certain joints and to improve balance.
  • Use of adaptive equipment. Reachers and grabbers allow people to extend their reach and reduce straining. Dressing aids help people get dressed more easily.
  • Managing use of medications. Long-term use of some anti-inflammatory medications can lead to stomach bleeding. Work with your health care provider to develop a plan to reduce this risk.

When should I call my health care provider?

If your symptoms get worse or you have new symptoms, let your health care provider know.

Key points about osteoarthritis

  • Osteoarthritis is a chronic joint disease. It affects mostly middle-aged and older adults.
  • It starts with the breakdown of joint cartilage.
  • Risk factors include heredity, obesity, injury, and overuse.
  • Common symptoms include pain, stiffness, and limited movement of joints.
  • The goals of treatment are to reduce joint pain and stiffness, and improve joint movement.
  • Treatment may include medications, exercise, heat, and joint injections.
  • Surgery may be needed to repair or replace a severely damaged joint.

Next steps

Tips to help you get the most from a visit to your health care provider:

  • Before your visit, write down questions you want answered.
  • Bring someone with you to help you ask questions and remember what your provider tells you.
  • At the visit, write down the names of new medicines, treatments, or tests, and any new instructions your provider gives you.
  • If you have a follow-up appointment, write down the date, time, and purpose for that visit.
  • Know how you can contact your provider if you have questions.
Osteoarthritis - WellSpan Health

Online Medical Reviewer: Weisbart, Ed, MD
Online Medical Reviewer: Ziegler, Olivia Walton, MS, PA-C
Last Review Date: 2014-02-21T00:00:00
Last Modified Date: 2015-11-12T00:00:00
Published Date: 2015-11-12T00:00:00
Last Review Date: 2007-03-30T00:00:00
© 2016 WellSpan Health. All Rights Reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

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