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  1. Copilot Answer
    An inflammation of one or both of the immovable joints formed by the bones of the pelvis called sacrum and the ilium. This causes stiffness or pain in the lower back, hip, and legs.
    Condition Highlight
    Urgent medical attention is usually recommended by healthcare providers
    How common is condition?
    Rare (Fewer than 200,000 cases per year in US)
    Is condition treatable?
    Treatable by a medical professional
    Does diagnosis require lab test or imaging?
    Requires lab test or imaging
    Time taken for recovery
    Can last several months or years
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    Causes

    Verified Expert

    • The causes include:
    • Traumatic injury such as accident
    • Spondyloarthropathies such as ankylosing spondylitis and psoriatic arthritis
    • Infections of the sacroiliac joint, or other Infections such as urinary tract infection
    • Tuberculosis of the bone
    • Gout
    • Osteoarthritis (degenerative arthritis), osteomyelitis
    • The risk factors include:
    • Existing back and spine issues
    • Illicit drug use
    • Urinary Tract infection
    • Pregnancy which can lead to alerted gait the added stress can lead to wearing of the joints

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    Symptoms

    Verified Expert
    Seek immediate medical attention if you experience symptoms.

    The symptoms include:

    • Low grade fever
    • Hip pain, back pain, pain in the legs, buttocks
    • Pain that gets worse after sitting for long
    • Pain that gets worse while going up or down the stairs

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    Diagnosis

    Verified Expert
    One or more of these tests may be recommended by your medical provider.
    Diagnosis require several tests as the symptoms overlap with many other conditions.

    Common tests & procedures

    Physical examination: The doctor may apply pressure on the hips and buttocks, move legs in various directions so as to gently put pressure in the sacroiliac joint.

    X-ray: X-ray of the pelvis help observe damages to the joints.

    MRI scan: MRI scan of the pelvis is most commonly used to diagnose the condition.

    Anesthetic injections: Anesthetic injection is made into the sacroiliac joint; if the pain stops after the injection, this can be an indication of the sacroiliitis.

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  1. Pain in the sacrum can be caused by the following conditions123:
    • Ligament issues (too loose or too tight)
    • Fall injury, work injury, car accident
    • Pregnancy
    • Hip/spine surgery (laminectomy, lumbar fusion)
    • Arthritis (especially ankylosing spondylitis)
    • Sacroiliitis (inflammation of the sacroiliac joints)
    • Pain may radiate into the hips, buttocks, or legs.
    Learn more:
    Pain in the area of the sacrum can be due to the ligaments becoming too loose or too tight. This may be caused by a fall injury, work injury, car accident, pregnancy, or hip/spine surgery (laminectomy, lumbar fusion). Many diseases may also lead one to experience pain in this region.
    www.belmarrahealth.com/sacrum-pain-causes-sym…
    Sacroiliitis happens when something irritates the joint where your spine meets your pelvis. Arthritis is the most common cause, especially ankylosing spondylitis. Typical reatments are physical therapy and over-the-counter pain medication. Inflammation of one or both of your sacroiliac joints.
    my.clevelandclinic.org/health/diseases/17736-sacr…
    When the sacroiliac joints become inflamed or irritated, it can cause lower back pain and stiffness. This is known as sacroiliitis. In some cases, the pain may also radiate into the hips, buttocks, or legs. The sacroiliac joints are in the lower back.
    www.medicalnewstoday.com/articles/what-does-sa…
     
  2. Sacroiliitis - Symptoms and causes - Mayo Clinic

     
  3. Sacroiliitis: Causes, Symptoms & Treatment Options - Cleveland …

  4. What does sacroiliac joint pain feel like? - Medical …

    Nov 25, 2022 · Sacroiliac joint pain is a condition that causes pain in the lower back and hips. It may radiate down the legs to the knees and feel dull or numb. Arthritis, pregnancy, injury, and spinal...

  5. Sacroiliac (SI) Joint Pain: Symptoms, Causes, and Treatment

  6. Symptoms and Diagnosis of Sacroiliitis | Spine-health

    Jun 20, 2024 · Sacroiliitis can cause pain that radiates into the hip, groin, thigh, knee, and foot. The pain may be dull or sharp and can be felt on one or both sides of the body. The pain may worsen following physical activities such as …

  7. Sacroiliitis - Diagnosis and treatment - Mayo Clinic

  8. Sacroiliac Joint Pain: Symptoms, Causes, and …

    Nov 18, 2022 · SI joint pain is a common cause of lower back pain that can be triggered by injury, pregnancy, or arthritis. Learn how to diagnose and treat this condition with physical therapy, injections, or surgery.

  9. Sacroiliitis: Treatments, Causes, and More - Healthline

    May 2, 2024 · Sacroiliitis is an inflammation of the sacroiliac joint. Causes may include an injury, pregnancy-induced changes to ligaments, arthritis, various back or spine issues, and, in rarer cases,...

  10. All About Sacroiliitis - Spine-health

    Sacroiliitis typically causes pain in the lower back, buttocks, and legs and may occur due to injury, infection, or autoimmune disorders. 1 Baronio M, Sadia H, Paolacci S, et al. Etiopathogenesis of sacroiliitis: implication for assessment …

  11. Sacroiliitis - StatPearls - NCBI Bookshelf

    Aug 8, 2023 · Sacroiliitis is inflammation of the sacroiliac joint (SI), the joint that connects the ilium to the sacrum. The SI joint is one of the largest joints in the body and is a common source of gluteal and lower back pain. Inflammation of …