Patient education
SI Joint Pain
Clinically reviewed by Marc Greenberg, MDReviewed Sacroiliac (SI) joint pain comes from the joint connecting the spine to the pelvis and is often felt in the low back and buttock. It can mimic sciatica. Most is managed with therapy and injections; carefully diagnosed cases that don’t respond may be candidates for SI joint fusion.
Printable patient guide
Sacroiliac (SI) Joint Pain
A two-page patient guide with condition education on the front and the approved blank Plan Today checklist on the back.
Symptoms of SI Joint Pain
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Lower back pain - Usually one-sided, below the belt line
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Hip pain - Deep aching in the buttock area
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Groin pain - May radiate to the front of the hip
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Leg pain - Can extend down the back or side of the thigh
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Pain with sitting - Especially on the affected side
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Difficulty with stairs - Pain when climbing or descending
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Morning stiffness - Worse after periods of inactivity
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Pain with rolling in bed - Difficulty changing positions
Causes of SI Joint Pain
Arthritis
Degenerative changes in the SI joint cartilage leading to inflammation and pain, often age-related.
Pregnancy
Hormonal changes and increased joint mobility during pregnancy can stress the SI joint.
Trauma
Falls, motor vehicle accidents, or direct impact to the pelvis can damage the SI joint.
Previous Surgery
Lumbar fusion surgery can increase stress on the SI joint, leading to dysfunction.
Leg Length Discrepancy
Unequal leg lengths can create abnormal stress patterns on the SI joint.
Inflammatory Conditions
Conditions like ankylosing spondylitis can affect the SI joint.
Diagnosis
Physical Examination
Dr. Greenberg will perform specific provocative tests to stress the SI joint and reproduce your symptoms. These tests help differentiate SI joint pain from other sources of lower back pain.
Diagnostic Studies
- X-rays: Assess joint structure and rule out other conditions
- MRI: Detailed view of soft tissues and inflammation
- Diagnostic injection: Confirms SI joint as pain source
Why Greenberg Spine
- Comprehensive diagnostic approach
- Minimally invasive fusion options
- Robotic-assisted precision
Conservative Treatment
Physical Therapy
Strengthening exercises for core and hip muscles, along with stretching and stabilization techniques.
Medications
Anti-inflammatory medications, muscle relaxants, and pain relievers to manage symptoms.
SI Joint Injections
Steroid injections to reduce inflammation and provide diagnostic confirmation of the pain source.
When to Consider Surgery
Objective Surgical Criteria
SI joint fusion is considered when conservative treatments fail and the SI joint is confirmed as the primary pain source.
Clinical Indications
- Chronic pain for 6+ months
- Failure of conservative treatment
- Positive response to diagnostic injection
- Significant functional impairment
Surgical Goals
- Eliminate abnormal joint motion
- Reduce pain and inflammation
- Improve function and quality of life
- Maintain pelvic stability
Related Procedures
SI Joint Fusion
Recovery Expectations
Recovery Timeline
First 2 Weeks
Limited activity, no bending or twisting, gradual increase in walking.
2-6 Weeks
Return to light activities, physical therapy begins, no lifting over 10 pounds.
6-12 Weeks
Gradual return to normal activities, continued strengthening exercises.
3-6 Months
Full fusion healing, return to all activities including sports.
What to Expect
Pain Relief
Improved Function
Daily activities become easier as the joint stabilizes and heals.
Long-term Stability
Successful fusion provides permanent stabilization of the SI joint.
Related Conditions
Related Topics
Learn more about related conditions and treatments
SI Joint Fusion
Lumbar Fusion (TLIF/PLIF)
Failed Back Surgery
Spondylolisthesis
Sciatica vs Back Pain: How to Tell
Contact Us
Experiencing SI Joint Pain? Schedule a consultation with Dr. Marc Greenberg.
This information is for educational purposes only and should not replace professional medical advice. Individual results may vary. Consult with Dr. Greenberg to determine the most appropriate treatment for your specific condition.
Free Patient Guide
Comprehensive spine surgery resource
Want a deeper overview of your options? Download the free Greenberg Spine Patient Guide covering all conditions, procedures, and what to expect.
When to seek urgent care
Call 911 or go to the emergency department right away if you have any of the following:
- Loss of bowel or bladder control, or new difficulty urinating
- Numbness in the groin, buttocks, or inner thighs (saddle anesthesia)
- Rapidly worsening weakness in one or both legs
These can be signs of a problem that needs emergency treatment.
This is general educational information, not medical advice. A clinical evaluation is the only way to know what’s right for you.