Joint Replacement Surgery

doctor showing x-ray to patient

Fast Facts

  • Approximately 790,000 total knee replacements and over 450,000 hip replacements are performed annually in the U.S. This number continues to grow as our population ages.
  • Total joint replacement is one of the safest and most reliable treatments in any area of medicine. A hip or knee replacement done today typically can be expected to last for 20 or more years. In fact, for most patients, total joint replacement surgery will be a lifelong solution for arthritis of the hip or knee.
  • Total joint replacement should be considered as a possible treatment option only after a reasonable attempt at non-surgical management has been determined to be unsuccessful.
  • Talk to your primary care doctor before surgery to ensure your health is good enough to undergo the anesthesia and rehabilitation associated with the surgery.
  • There are specific limitations and activity restrictions following total joint replacement that should be reviewed prior to treatment.

Joint replacement surgery is typically recommended for patients with advanced end stage joint disease (usually of the knee or the hip) who have tried non-surgical treatment, but still experience functional decline and disabling pain. Joint replacement is an extremely effective surgery when done at the right time and indication.

Modern joint replacement surgery involves removal of the worn cartilage from both sides of the joint, followed by resurfacing of the joint with a metal and plastic replacement implant that looks and functions much like your normal joint. Although nearly every joint in the body can be replaced, most replacement surgeries involve the hip or knee.

Over the last 30 years, improved surgical techniques and new implant materials have been developed, making total joint replacement one of the most reliable and durable procedures in any area of medicine.

What determines the appropriateness of joint surgery?

Severe or “end-stage” arthritis can be caused by a variety of problems including osteoarthritis, rheumatoid arthritis and other inflammatory joint problems, previous joint injuries and fractures, joint infections and other rare conditions such as osteonecrosis (also called avascular necrosis). All of these problems result in damage to the different structures in the joint and eventually lead to significant irreversible damage and dysfunctional joint.

Certain types of arthritis, such as rheumatoid arthritis and other inflammatory types of arthritis may be best treated by a rheumatologist, who specializes in treatment of these disorders. More common joint problems like osteoarthritis are typically treated by a primary care doctor, rheumatologist, or orthopedic surgeon. When medical treatment for arthritis recommended by your doctor becomes less effective, joint replacement surgery may be an option for you. These professionals are better qualified to determine if joint replacement therapy is an appropriate treatment choice for you.

The definition of “appropriate” for total joint replacement surgery changes continuously. In general, there is no set upper age limit for joint replacement candidates. Instead, the decision is perhaps best made based on your general medical condition and fitness for surgery, and how much your arthritis affects your quality of life.

While few patients are in perfect health, most people undergoing joint replacement must be sufficiently healthy or medically “tuned up” to allow their surgery to be performed safely. Before joint replacement surgery, talk to your primary care doctor to ensure your health is good enough to undergo the anesthesia and rehabilitation associated with the surgery.

How is the need for joint surgery diagnosed?

For nearly all patients, arthritis or other joint problems that are typically treated with joint replacement surgery can be diagnosed with simple x-rays. Other causes for hip or knee pain should be considered since referred back pain can be easily confused for pain associated with arthritis of the hip or knee, and pain from an arthritic hip can occasionally be referred to the knee. Inflammation of the soft tissue structures around the joint also can cause tendonitis or bursitis which can be confused with the pain associated with arthritis. A careful examination by your doctor and routine x-rays usually can determine the actual cause of your pain.


Your need for joint replacement surgery can be minimized by comprehensive medical treatment of your arthritis. Arthritis medications, exercise modification to low impact activities (e.g. swimming, walking, biking, etc.), weight loss, nutritional supplements, and joint injections can help you live with your arthritis for as long as possible. When these treatments are no longer effective and you experience pain as well as decrease in function, joint replacement surgery can relieve the pain and restore the quality of life lost due to arthritis.

Despite improvement in total joint replacement surgery, these operations are not likely to last a lifetime in young, active patients with arthritis. In some of these cases, joint preserving procedures such as osteotomies (removal of dead bone and repositioning of bone), joint debridement or “cleanouts,” and cartilage transplantation may be helpful in delaying joint replacement surgery.

Living with joint replacement

Following a relatively short period of recovery after surgery, patients undergoing joint replacement surgery typically return to a high level of activity. Speed of recovery following surgery depends on your level of activity before surgery, general health and overall physical fitness, degree and duration of physical impairment before surgery, the type of surgery you had, and your expectations and motivation. Physical therapy and occupational therapy after joint replacement are very important.

Long term physical limitations after surgery are nearly always due to other orthopedic or rheumatologic problems (significant arthritis in other joints, chronic low back pain) or major health problems (heart, breathing, other chronic illnesses) rather than due to any limitations of the joint replacement. In general, those undergoing hip and knee replacements can return to unlimited low impact activities such as swimming, water exercise, walking, biking, low impact aerobics, golf, and doubles tennis.

Most orthopedic surgeons advise against high impact and joint overloading activities that involve heavy lifting, running, and jumping. However, many patients resume their normal activities of daily living following hip or knee replacement without limitation.

Although patients typically obtain a functional amount of motion following hip replacement surgery, occasionally the limits of motion of a total hip replacement can be exceeded, resulting in dislocation out of its normal position. Patient education and an understanding of the limitations of total hip replacement, especially regarding the potential for dislocation and range of motion restrictions, can help minimize the occurrence of this complication. Patients should be encouraged to discuss specific limitations, precautions, and activity restrictions following total joint replacement with their surgeons.

Updated February 2022 by the American College of Rheumatology Communications and Marketing Committee.

This information is provided for general education only. Individuals should consult a qualified health care provider for professional medical advice, diagnosis and treatment of a medical or health condition.

© 2023 American College of Rheumatology.  All rights reserved.  Website & Privacy Policies | Sitemap | Help | Contact Us