Dysfunction in the sacroiliac joint, also called the SI joint, can sometimes cause lower back and/or leg pain. Leg pain from sacroiliac joint dysfunction can be particularly difficult to differentiate from radiating leg pain caused by a lumbar disc herniation (sciatica) as they can feel quite similar.Lower back pain (below L5)
Sensation in lower extremity: pain, numbness, tingling, weakness
Feeling of leg instability (buckling, giving way)
Disturbed sleep patterns due to pain
Disturbed sitting patterns (unable to sit for long periods, sitting on one side)
Pain going from sitting to standing.Sacroiliac joint dysfunction tests include discussing your history and pain experience, a physical examination, tests to rule out other sources of pain, like lumbar spine pain and hip pain, and these commonly accepted methods:
Diagnostic imaging (X-ray, CT, MRI)Distraction
In five different positions, your doctor will apply pressure to your hips, knees, and other areas to see which positions may cause discomfort or pain. SACROILIAC joint pain is felt in the low back and buttocks. … Physical therapy, stretching exercises, pain medication, and joint injections are used first to manage the symptoms. Surgery to fuse the joint and stop painful motion may be recommended.