
Rheumatoid arthritis (RA) and ankylosing spondylitis (AS) are chronic, progressive inflammatory disorders that can impair a patients' physical fitness.
- They are among the most common types of rheumatic illnesses.
- Their etiology and symptomatology, however, are distinct.
Although both disorders are classified as autoimmune diseases, various distinctions are made to distinguish them.
Differences between rheumatoid arthritis and ankylosing spondylitis
Feature | RA | AS |
---|---|---|
Affects | Joints in the extremities | Mobility of the spine and sacroiliac joints |
Axial skeleton involvement | Rare, although possible | Common |
Nodule | Present | Absent |
Symptoms experienced | RA typically begins in smaller joints, such as the hands and feet. Occasionally, the knees are the first affected. |
|
Inflammation | Causes significant inflammation in the synovium (the membrane that serves as a lining surrounding the joints) | Causes inflammation of the enthesis (the region where the bone is entered by a tendon) |
Characteristics |
|
|
Gender | Most common in women | Most common in men |
Age of onset | 20 to 30 years | 30 to 40 years |
Mortality | RA appears to have a bigger effect on mortality due to heart disease complications | Lesser mortality rate than RA |
What is rheumatoid arthritis?
Rheumatoid arthritis (RA) is an autoimmune illness in which the body's immune system damages the synovium by mistake (the thin membrane that lines the joints).
- Pain, swelling, and stiffness are all symptoms of chronic inflammation. Over time, RA can cause bone and joint deterioration, resulting in disability.
- RA usually affects both sides of the body equally, so if a joint on one side is damaged, the same joint on the opposing side is also affected.
- Wrists, fingers, knees, feet, ankles, and elbows are the most typically affected locations.
- Other organs can be affected by RA, and people with RA are more likely to acquire disorders such as heart disease, diabetes, and osteoporosis.
What are the symptoms of rheumatoid arthritis?
Symptoms of RA frequently arise gradually over several weeks. Some cases can move swiftly over days. Symptoms differ from person to person.
Symptoms of joint disease include:
- Pain:
- Joint discomfort caused by RA is often throbbing and painful. It is usually worse in the mornings and after a time of inactivity.
- Stiffness:
- RA can cause joint stiffness. The patient may be unable to fully bend their fingers or make a fist if hands are affected.
- Like joint pain, stiffness is generally stronger in the morning or after a period of inactivity and may linger longer than other types of arthritis.
- Swelling, warmth, and redness:
- When RA affects a joint, the joint lining becomes inflamed, causing swelling, warmth, and redness.
- As a result, the joints may enlarge, become hot, and painful to the touch or both. In certain people, firm swellings known as rheumatoid nodules can grow under the skin around damaged joints.
Patients with RA experience various more general symptoms, including:
- Tiredness and lack of energy
- Fever
- Sweating
- Poor appetite
- Weight loss

SLIDESHOW
What Is Rheumatoid Arthritis (RA)? Symptoms, Treatment, Diagnosis See SlideshowWhat the treatment options for rheumatoid arthritis?
Treatment options for RA include:
- In the early stage:
- Controlling inflammation is critical at all stages of RA, but minimizing it early gives the best chance of avoiding joint damage.
- A low-dose steroid paired with a low-dose disease-modifying antirheumatic drug (DMARD) frequently offers the best management.
- Combine these drugs with lifestyle changes to limit the progression of the condition.
- In moderate stage:
- Steroid injections may be used as a treatment option.
- Biologic DMARDs and genetically modified proteins to suppress a component of the immune system may be prescribed.
- These injectable medications may slow the progression of RA, but they have substantial side effects. Physical activity is an essential part of the healing process.
- Before beginning self-administered muscle-strengthening aerobic exercises, certain patients may require physical rehabilitation.
- In severe stage:
- Treatment choices are indicated on a case-by-case basis. The orthopedic surgeon may explore the potential of joint replacement.
- Other surgical procedures include arthrodesis (also known as joint fusion) and tendon repair.
- Patients with chronic pain have benefited from cognitive behavioral therapy, which can assist patients in identifying pain triggers and providing coping methods to improve the overall quality of life.
- In the end-stage:
- Pain relievers, muscle relaxers, and low-dose antidepressants are frequently used in combination.
- Along with joint replacement choices, patients may be prescribed joint replacement solutions to restore mobility and lessen the need for various pain medications.
Regardless of the stage, a person is in, their symptoms may persist for a long period. They could go into total remission or flare up and worsen unexpectedly.
Health News
- Attachment Theory: What It Is, Stages & the Different Attachment Styles
- Gentle Parenting: What It Is, Techniques & Discipline
- U.S. Nursing Homes Fail to Report Many Serious Falls, Bedsores: Study
- The Younger You Get Diabetes, the Higher Your Risk for Dementia Later
- FDA Grants Full Approval to Paxlovid to Treat COVID-19
More Health News »
Prevention and outcome of RA
- RA can be prevented from worsening if it is diagnosed early and adequate treatment is started as soon as feasible.
- It takes time and significant research to determine the best treatment strategy for each patient.
- Untreated or undiagnosed patients with RA are at a high risk of joint degradation, poor long-term outcomes, and cardiovascular disease.
- It is critical to pay attention to our body and be able to recognize a flare when it arises so that we can treat it as quickly as possible with medication changes and self-management techniques.
- Although there is no cure for RA, medicines and lifestyle modifications can help manage symptoms.
- Alternative and complementary therapies can help relieve symptoms, but only conventional medications can stop the disease's progression and prevent further joint damage.
- Medication can help put RA into remission in some cases, and symptoms may disappear completely in others.
What is ankylosing spondylitis?
Ankylosing spondylitis (AS) is a type of arthritis that mostly affects the spine and causes inflammation in the back. The illness affects the shoulders, hips, ribs, heels, and other joints. It is a systemic disease, which means that it affects more than only bones and joints.
- AS causes swelling of the vertebrae in the spine, resulting in severe and chronic pain, stiffness and discomfort.
- The growth of new bone tissue in the spine causes portions of the spine to fuse in a fixed and immobile position in this situation. Over time, the spine becomes less flexible, resulting in a leaned forward posture.
- According to rheumatologists, there is a significant delay in AS diagnosis. If left untreated, inflammation can cause reduced mobility, perhaps causing the patient to become bedridden or wheelchair-bound.
Warning signs of AS
- For more than 90 days, persistent and agonizing pain in the lower back, heel(s), joints, or chest, particularly after waking up in the morning, is a warning sign.
- The pain may come and go, but it is progressively worsening and it's only getting worse.
- Using nonsteroidal anti-inflammatory drugs (NSAIDs)/pain relievers may provide relief from issues.
- Pain and stiffness, particularly in the lower back and hips (sacroiliac joint) and especially in the mornings or after long periods of inactivity, are early signs and symptoms of AS.
- Other joints in the body may experience stiffness, irritation and pain. Shoulders, neck, hips, ribs, heels, and minor hand and foot joints may be affected.
- Weight loss, fever, tiredness, and inflammation are all frequent systemic symptoms.
- Enthesitis, which is inflammation of bone-attached ligaments, tendons and capsules, primarily in the spine but also in the back of the foot (Achilles tendon) and cartilage between the breastbone and ribs, is a common sign.
What is the treatment of ankylosing spondylitis?
AS can be treated conservatively or surgically, depending on the signs and symptoms and the patient's medical state.
- Medications for symptom alleviation:
- NSAIDs/pain relievers provide relief from inflammation, discomfort, and stiffness.
- Surgery:
- Normally, surgery is not necessary in most AS cases; however, if the patient is in a more advanced stage with considerable discomfort, the doctor may recommend it. It is possible to repair or replace damaged joints (hip/knee) and tendons.
- Physical therapy:
- It has been proven to be the most effective in AS. Exercises are intended to increase flexibility and range of motion.
- Stretching and strength-building exercises are advised to improve posture and strength.
- Proper sleeping and walking positions, as well as stomach- and back-strengthening activities, are intended to improve or eliminate leaned forward posture and keep the patient upright.
- Deep breathing exercises are advised. Swimming is recommended as a form of exercise because it has been demonstrated to be effective in patients with AS. It aids in the reduction of pain and improvement of posture and respiration.
The progression of each of these disorders is difficult to predict. Signs and symptoms of AS and rheumatoid arthritis (RA) may recur and then subside.
RA and AS, like any other autoimmune or rheumatic disease, are indistinguishable ailments that have disrupted people's lives. The course of an affected individual's life is radically altered because of chronic pain and eventual disability. As a result, supportive care is required to reduce the pain caused by these illnesses.
Previously, AS was frequently misdiagnosed as RA. Thanks to advanced laboratory tests and imaging, there are no major diagnostic difficulties in distinguishing between these disorders today. Research suggests that the coexistence of RA with AS is rare.
Subscribe to MedicineNet's Arthritis Newsletter
By clicking "Submit," I agree to the MedicineNet Terms and Conditions and Privacy Policy. I also agree to receive emails from MedicineNet and I understand that I may opt out of MedicineNet subscriptions at any time.
Health Solutions From Our Sponsors
Rheumatoid Arthritis and Ankylosing Spondylitis: https://www.ncbi.nlm.nih.gov/books/NBK532288/
Quality of life and work in patients with rheumatoid arthritis and ankylosing spondylitis of working age: https://ard.bmj.com/content/62/12/1178
Rheumatoid Arthritis (RA): https://www.cdc.gov/arthritis/basics/rheumatoid-arthritis.html
Overview of Ankylosing Spondylitis: (https://spondylitis.org/about-spondylitis/types-of-spondylitis/ankylosing-spondylitis/)
COEXISTENCE OF ANKYLOSING SPONDYLITIS AND RHEUMATOID ARTHRITISS: https://onlinelibrary.wiley.com/doi/epdf/10.1002/art.1780190120
Top Rheumatoid Arthritis vs. Ankylosing Spondylitis Related Articles
11 Home Remedies for Rheumatoid Arthritis
Rheumatoid arthritis (RA) is a long-term disorder that progressively affects many parts of the body. Home remedies, diet, and lifestyle changes can help reduce pain and discomfort associated with RA alongside medical treatment. Home remedies alone cannot effectively treat RA or prevent the progression of the disease.Ankylosing Spondylitis
Ankylosing spondylitis is a type of arthritis that causes chronic inflammation of the spine. The tendency to develop ankylosing spondylitis is genetically inherited. Treatment incorporates medications, physical therapy, and exercise.Ankylosing Spondylitis Quiz
What is ankylosing spondylitis? Take this quiz to learn the causes, symptoms, and treatments for this painful disorder.What Is the Best Infusion for Rheumatoid Arthritis (RA)?
Learn the four most effective DMARDs for rheumatoid arthritis infusion therapy, which aim to control RA symptoms, reduce complications, and improve quality of life and lifespan.Can Rheumatoid Arthritis Be Caused by Stress?
Rheumatoid arthritis can be caused by and result in stress, as well as other conditions such as gastrointestinal problems (IBD).Can Surgery Help Ankylosing Spondylitis (AS)?
Ankylosing spondylitis is a type of arthritis that affects the spine and large joints. Surgery can help people with ankylosing spondylitis if they are in severe pain, experience severely limited mobility or have significantly reduced quality of life.Can You Get Disability for Ankylosing Spondylitis?
A patient is eligible for disability benefits for ankylosing spondylitis (AS) if the condition is considered severe and serious. Below are the criteria to get disability benefits for ASHow Serious Is Rheumatoid Arthritis?
Rheumatoid arthritis (RA) is a chronic inflammatory disorder that typically affects the joints and other body parts. If not diagnosed early and appropriately treated, RA can lead to permanent deformities, disabilities, and serious systemic complications.Rheumatoid Arthritis (RA)
Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic inflammation of the joints, the tissue around the joints, as well as other organs in the body.Rheumatoid Arthritis: Alternative RA Therapies
Learn which alternative treatments show promise for rheumatoid arthritis.RA Friendly Exercises
Regular exercise boosts fitness and helps reverse joint stiffness for people with rheumatoid arthritis (RA). WebMD demonstrates helpful exercises to get you started.RA Quiz
How is rheumatoid arthritis different from other forms of arthritis, such as osteoarthritis and gout? Take the Rheumatoid Arthritis (RA) Quiz to rest your RA IQ.Rheumatoid Arthritis: RA Food Myths and Facts
Is there really an RA diet? Learn the truth from WebMD about which foods can ease your symptoms and which you should avoid.RA Home Remedies
People try all sorts of things to relieve rheumatoid arthritis pain. WebMD debunks some of the common ones and lets you know what needs more testing.Rheumatoid Arthritis vs. Lupus: Differences and Similarities
Rheumatoid arthritis (RA) and lupus are two varieties of autoimmune diseases that cause flare-ups. While RA attacks the immune system on the joints, lupus involves many other parts of the body besides the joints. Common RA symptoms involve warm, swollen, and painful joints; morning stiffness in the joints or stiffness after inactivity, joint deformity, fever, fatigue, etc. Lupus symptoms include Malar rash (butterfly-shaped rash involving the cheeks and bridge of the nose), fever, joint pain in the absence of joint deformity, etc.What Are the Four Stages of Rheumatoid Arthritis?
Rheumatoid arthritis is a chronic inflammatory disease categorized into the following four stages and classifications. Learn the causes, symptoms, and complications of RA below.