Spondyloarthritis

Spondyloarthritis is a group of inflammatory diseases that mainly affect the spine and large joints, but can also impact other body parts like the eyes, skin, and bowels. It causes pain, stiffness, and fatigue, often starting in early adulthood. While there's no cure, treatments can manage symptoms and prevent joint damage.

What is Spondyloarthritis?

Spondyloarthritis refers to a group of inflammatory diseases primarily affecting the spine and large joints, such as the hips and knees. It can also cause inflammation in other areas like the eyes, skin, and bowels. Common symptoms include back pain, stiffness, and fatigue, often improving with activity.

Spondyloarthritis is not a single condition but a family of related diseases. These conditions share common features, including inflammation where tendons and ligaments attach to bone, a process called enthesitis (Mayo Clinic). Unlike other forms of arthritis, spondyloarthritis often affects the sacroiliac (SI) joints, which connect the lower spine to the pelvis (MedlinePlus). There are several types of spondyloarthritis. The most well-known type is ankylosing spondylitis (AS), which primarily affects the spine and can lead to fusion of vertebrae over time (Mayo Clinic). Other types include psoriatic arthritis (PsA), which occurs in people with psoriasis; reactive arthritis, triggered by an infection; and enteropathic arthritis, associated with inflammatory bowel diseases like Crohn's disease or ulcerative colitis (Mayo Clinic, MedlinePlus). Sometimes, people have symptoms of spondyloarthritis but do not fit neatly into one specific category. This is called undifferentiated spondyloarthritis (Mayo Clinic). All forms of spondyloarthritis involve chronic inflammation, which can cause pain, stiffness, and potentially lead to joint damage if not managed effectively (MedlinePlus).

Symptoms

Spondyloarthritis commonly causes chronic back pain and stiffness, especially in the lower back, which tends to worsen after rest and improve with exercise. Fatigue is also a frequent symptom. Beyond the spine, it can affect other joints, eyes, skin, and even the digestive system.

The most common symptoms of spondyloarthritis are pain and stiffness in the lower back, buttocks, and hips (Mayo Clinic). This pain often feels worse in the morning or after periods of inactivity and typically gets better with physical activity (MedlinePlus). Many people also experience significant fatigue (Mayo Clinic). Inflammation can occur in other joints, such as the knees, ankles, feet, shoulders, and hands (Mayo Clinic). A characteristic symptom is enthesitis, which is pain and tenderness where tendons or ligaments attach to bone, often felt in the heels or the bottom of the feet (Mayo Clinic). Some people may also develop dactylitis, where entire fingers or toes swell up, sometimes called “sausage digits” (Mayo Clinic). Spondyloarthritis can also affect other parts of the body. Eye inflammation, known as uveitis, can cause pain, redness, light sensitivity, and blurred vision (MedlinePlus). Skin rashes, specifically psoriasis, are common in psoriatic arthritis (Mayo Clinic). Some individuals may experience symptoms related to inflammatory bowel disease, such as abdominal pain and diarrhea (MedlinePlus). Rarely, inflammation can affect the heart or lungs (Mayo Clinic).

Causes & risk factors

The exact cause of spondyloarthritis is unknown, but genetics play a significant role. Having a specific gene, HLA-B27, greatly increases the risk, though not everyone with the gene develops the condition. Family history, age, and certain infections are also important risk factors.

While the precise cause of spondyloarthritis remains unclear, researchers believe a combination of genetic and environmental factors contributes to its development (Mayo Clinic). A strong genetic link exists, particularly with the human leukocyte antigen B27 (HLA-B27) gene (MedlinePlus). About 1 in 10 people (10%) who carry the HLA-B27 gene will develop some form of spondyloarthritis (Mayo Clinic). However, many people with the gene never develop the condition, suggesting other factors are involved (MedlinePlus). Several factors can increase your risk of developing spondyloarthritis. A family history of spondyloarthritis, especially if a close relative has the condition, raises your chances (Mayo Clinic). The condition often begins in late adolescence or early adulthood, typically before age 45 (MedlinePlus). Certain infections can trigger reactive arthritis, a type of spondyloarthritis. These infections are usually bacterial and affect the gastrointestinal or genitourinary tracts (Mayo Clinic). Additionally, having other inflammatory conditions like psoriasis or inflammatory bowel disease (Crohn's disease or ulcerative colitis) increases the risk of developing spondyloarthritis (Mayo Clinic).

How it's diagnosed

Diagnosing spondyloarthritis involves a combination of evaluating your symptoms, a physical examination, imaging tests like X-rays or MRI scans, and blood tests. There isn't one single test to confirm the diagnosis, so doctors look at the overall picture to identify the condition.

Because spondyloarthritis can affect different parts of the body and its symptoms can mimic other conditions, diagnosis can sometimes be challenging (Mayo Clinic). Your doctor will start by asking about your medical history and symptoms, paying close attention to the characteristics of your pain and stiffness (MedlinePlus). During a physical exam, your doctor will check for tenderness, swelling in your joints, and assess your range of motion, especially in your spine and hips (Mayo Clinic). Imaging tests are crucial for detecting inflammation and damage. X-rays can show changes in the sacroiliac joints or spine, while magnetic resonance imaging (MRI) can reveal earlier signs of inflammation that X-rays might miss (MedlinePlus). Blood tests may be ordered to check for markers of inflammation, such as erythrocyte sedimentation rate (ESR) or C-reactive protein (CRP) (Mayo Clinic). A blood test for the HLA-B27 gene may also be performed. While a positive result for HLA-B27 supports a diagnosis, it is not definitive on its own, as many people with the gene do not have spondyloarthritis (MedlinePlus). Often, a referral to a rheumatologist, a doctor specializing in arthritis and related conditions, is necessary for a definitive diagnosis and management plan (Mayo Clinic).

Treatment options

Treatment for spondyloarthritis aims to reduce pain, stiffness, and inflammation, prevent joint damage, and maintain physical function. It typically involves a combination of medications, physical therapy, and lifestyle adjustments, tailored to the specific type and severity of your condition.

Medications are a cornerstone of spondyloarthritis treatment. Nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen or naproxen, are often the first-line treatment to help reduce pain and inflammation (Mayo Clinic, MedlinePlus). For inflammation in peripheral joints (like knees or ankles), disease-modifying antirheumatic drugs (DMARDs) like sulfasalazine or methotrexate may be prescribed (Mayo Clinic). If NSAIDs and DMARDs are not effective, or if the disease is severe, biologic medications may be used (Cochrane Library). These drugs, such as TNF inhibitors or IL-17 inhibitors, target specific parts of the immune system to reduce inflammation (Mayo Clinic, MedlinePlus). Corticosteroid injections can provide temporary relief for specific inflamed joints but are generally not used for long-term systemic treatment (Mayo Clinic). Physical therapy is an essential part of managing spondyloarthritis. A physical therapist can teach you exercises to improve flexibility, strengthen muscles, and maintain good posture, which can help reduce pain and stiffness (MedlinePlus). Regular, low-impact exercise, such as swimming or cycling, is also highly recommended to keep joints mobile and reduce symptoms (Mayo Clinic). Lifestyle adjustments can also play a role. Quitting smoking is important as it can worsen symptoms and disease progression (Mayo Clinic). Maintaining a healthy weight can reduce stress on your joints (Mayo Clinic). In rare cases, if joint damage is severe or spinal fusion causes significant problems, surgery might be considered (Mayo Clinic).

Recovery & outlook

Spondyloarthritis is a chronic condition with no cure, but it is highly treatable. With early diagnosis and consistent management, many people can effectively control their symptoms, prevent significant joint damage, and maintain a good quality of life, allowing them to remain active.

The outlook for individuals with spondyloarthritis has significantly improved due to advances in treatment (Mayo Clinic). While it is a lifelong condition, early diagnosis and prompt, appropriate treatment are crucial for better outcomes (MedlinePlus). This can help slow disease progression, reduce pain, and prevent severe joint damage or spinal fusion (Mayo Clinic). The course of spondyloarthritis varies greatly from person to person. Some individuals experience mild, intermittent symptoms, while others may have more persistent and severe inflammation (Mayo Clinic). Regular follow-up with a rheumatologist is important to monitor disease activity, adjust medications as needed, and address any new symptoms or complications (MedlinePlus). Many people with spondyloarthritis can lead full, productive lives with proper management (Mayo Clinic). Adhering to your treatment plan, including medications and physical therapy, and making healthy lifestyle choices are key to managing the condition effectively and maintaining your physical function and overall well-being (MedlinePlus).

When to see a doctor

You should see a doctor if you experience persistent back pain, especially if it worsens in the morning, improves with exercise, and lasts for more than a few weeks. Also seek medical attention for new or worsening joint pain, eye inflammation (redness, pain, light sensitivity), or severe abdominal symptoms.

It is important to consult your doctor if you develop chronic back pain that does not improve with rest, particularly if it is worse in the morning and eases with activity (MedlinePlus). This type of pain, especially in the lower back or buttocks, lasting for more than three months, is a key indicator of potential inflammatory back pain (Mayo Clinic). You should also seek medical advice if you experience new or worsening joint pain, swelling, or stiffness in other joints like your hips, knees, or ankles (Mayo Clinic). Any symptoms of eye inflammation, such as sudden eye pain, redness, blurred vision, or increased sensitivity to light, warrant prompt medical attention (MedlinePlus). Additionally, if you develop persistent or severe abdominal pain, changes in bowel habits, or chronic diarrhea, these could be signs of inflammatory bowel disease associated with spondyloarthritis (Mayo Clinic). Early evaluation can lead to a timely diagnosis and treatment, which is vital for managing the condition effectively and preventing long-term complications (MedlinePlus).

Frequently asked questions

Is spondyloarthritis the same as regular arthritis?

No, spondyloarthritis is a specific group of inflammatory arthritis conditions, distinct from common "wear-and-tear" arthritis (osteoarthritis). It involves inflammation where tendons and ligaments attach to bone, primarily affecting the spine and large joints, and can also impact other body systems. (Mayo Clinic, MedlinePlus)

Can spondyloarthritis be passed down in families?

Yes, there is a strong genetic component to spondyloarthritis. Having a close family member with the condition, especially if they carry the HLA-B27 gene, increases your risk. However, not everyone with the gene or a family history will develop it. (Mayo Clinic, MedlinePlus)

Does spondyloarthritis only affect the spine?

While spondyloarthritis primarily affects the spine and sacroiliac joints, it can also cause inflammation in other large joints like the hips and knees. Furthermore, it can impact other body parts, including the eyes (uveitis), skin (psoriasis), and bowels (inflammatory bowel disease). (Mayo Clinic, MedlinePlus)

What is the HLA-B27 gene, and why is it important for spondyloarthritis?

The HLA-B27 gene is a specific genetic marker strongly associated with an increased risk of developing certain types of spondyloarthritis, particularly ankylosing spondylitis. About 1 in 10 people (10%) with this gene develop spondyloarthritis, but its presence alone does not mean you will get the condition. (Mayo Clinic, MedlinePlus)

Is there a cure for spondyloarthritis?

Currently, there is no cure for spondyloarthritis, as it is a chronic condition. However, with early diagnosis and consistent treatment, including medications and physical therapy, symptoms can be effectively managed, disease progression can be slowed, and many people can maintain a good quality of life. (Mayo Clinic, MedlinePlus)

Can lifestyle changes help manage spondyloarthritis?

Yes, lifestyle changes are an important part of managing spondyloarthritis. Regular low-impact exercise, maintaining good posture, quitting smoking, and achieving a healthy weight can help reduce symptoms, improve flexibility, and support overall well-being alongside medical treatments. (Mayo Clinic, MedlinePlus)

Sources

• MedlinePlus — Spondyloarthritis
• Mayo Clinic — Spondyloarthritis
• Cochrane Library — Spondyloarthritis