Sacroiliac (SI) Joint Dysfunction

Sacroiliac joint dysfunction occurs when the sacroiliac joint—which connects the lower spine to the pelvis—becomes inflamed, unstable, or misaligned. This can irritate surrounding ligaments and nerves, causing pain in the lower back, buttocks, or legs. The discomfort may mimic other conditions, such as lumbar disc problems, making accurate diagnosis important.

Common Symptoms

Pain in the lower back, buttocks, or hips, often on one side
Discomfort that worsens with standing, walking, or climbing stairs
Stiffness or limited range of motion in the lower back or hips
Pain when transitioning from sitting to standing or after prolonged sitting

Why It Happens

SI joint dysfunction can result from trauma, pregnancy, uneven leg length, arthritis, or repetitive stress on the joint. Over time, ligaments supporting the joint may become loose or inflamed, leading to pain and instability.

Diagnosis

Medical History Review – Understanding symptom patterns, triggers, and impact on daily activities
Physical Exam – Assessing joint motion, pain points, and muscle function
Imaging Tests – X-rays, MRI, or CT scans can help rule out other causes and evaluate joint structure
Diagnostic Injections – Targeted anesthetic injections may confirm the SI joint as the pain source

How We Treat It

Treatment focuses on reducing pain, stabilizing the joint, and restoring normal function.

Treatment options may include:

Physical therapy to strengthen core and pelvic muscles
Anti-inflammatory medications or pain relievers
SI joint injections to reduce inflammation and relieve pain
Activity modification and guided home exercise programs
Supportive devices, such as pelvic belts, for stabilization