Joint Replacement
Comprehensive information about joint replacement — its causes, symptoms, diagnosis, treatment options, and recovery outlook to help you make informed healthcare decisions.
Overview
Joint replacement is a surgery to replace a damaged joint with an artificial one made of metal and plastic. It is most often done for hips and knees when arthritis causes pain that does not get better with other treatments. The surgery helps most people move better and live with much less pain.
Signs & Symptoms
- 01.Joint pain that gets worse with activity and improves with rest.
- 02.Morning stiffness that lasts less than 30 minutes.
- 03.Pain at night that disturbs sleep.
Causes
- 01.The most common cause is osteoarthritis, where the cushioning cartilage wears away over time.
- 02.Rheumatoid arthritis and previous joint injuries can also lead to joint damage.
- 03.Less common causes include conditions that affect blood supply to the bone.
Risk Factors
- 01.Age over 50 and being overweight increase the risk of joint problems.
- 02.Family history of arthritis or joint problems can play a role.
- 03.Previous joint injuries can lead to arthritis later in life.
Types
Total Knee Arthroplasty
Replaces all three parts of the knee joint and is the most common joint replacement surgery.
Total Hip Arthroplasty
Replaces both the ball and socket of the hip joint, allowing pain-free movement.
Unicompartmental Knee Arthroplasty
Replaces only the damaged part of the knee, offering faster recovery for some patients.
Reverse Total Shoulder Arthroplasty
A specialized shoulder replacement for when the rotator cuff is severely damaged.
Total Ankle Arthroplasty
Replaces the ankle joint to relieve pain while preserving motion.
Diagnosis
- 01.X-rays show narrowing of joint space and bone changes.
- 02.The doctor checks for pain, swelling, and limited motion during a physical exam.
- 03.MRI may be used if more detail is needed about the cartilage or soft tissues.
Treatment Approach
- 01.The damaged joint surfaces are removed and replaced with artificial parts made of metal and plastic.
- 02.Surgery is done under anesthesia and usually takes 1 to 2 hours.
- 03.Most people go home 1 to 2 days after surgery and start moving right away.
Recovery & Follow-up
- 01.Physical therapy begins the day of surgery to help you walk and move.
- 02.Most people use a walker or cane for 2 to 4 weeks, then gradually walk on their own.
- 03.Full recovery takes about 3 to 6 months, and low-impact activities like walking and swimming are encouraged.
Complications
- 01.Infection after surgery is rare and can be treated with antibiotics.
- 02.Blood clots can be prevented with medication and early movement after surgery.
- 03.Implants can loosen over many years and may need revision, but most last 15 to 20 years or more.
Prevention
- 01.Maintaining a healthy weight reduces stress on your joints.
- 02.Regular low-impact exercise keeps the muscles around joints strong.
- 03.Avoiding high-impact activities can help protect your joints over time.