SI Joint and Tailbone Dislocation: Causes, Symptoms, and Treatment
An SI joint or tailbone dislocation occurs when one of the joints at the base of the spine is forced out of place. The sacroiliac (SI) joint connects the sacrum (lower spine) to the ilium (pelvic bone), while the sacrococcygeal joint connects the sacrum to the coccyx, or tailbone. Dislocation of either joint is rare but can happen after significant trauma, such as a fall, accident, or repetitive stress.
These injuries can cause severe pain in the lower back, hips, buttocks, or tailbone area. Symptoms may also include swelling, tenderness, reduced range of motion, and pain that worsens with movement or weight-bearing.
Diagnosis usually involves a physical exam, medical history, and imaging tests such as X-rays or MRI. Treatment may include rest, immobilization, pain medication, and physical therapy. In more severe cases, surgery may be needed to realign and stabilize the joint.
Prompt medical evaluation and a tailored treatment plan are important for managing symptoms and restoring function.
