The sacroiliac joint is one of the largest joints in the body, formed by the connection between the sacrum and the right and left iliac (pelvic) bones. While it allows only limited movement, it plays a vital role in transferring the forces of the upper body to the lower extremities. The sacrum, a triangular-shaped bone located at the base of the spine beneath the lumbar vertebrae, works with the sacroiliac joint to absorb shock and maintain structural stability. Sacroiliac joint dysfunction, also known as sacroiliac joint pain, is a common source of lower back pain.

The most frequent symptom of sacroiliac joint dysfunction is localized pain, typically in the lower back, buttocks, groin, or thigh, which may radiate down one leg. Pain tends to intensify with standing or walking and often improves with rest. Additional symptoms can include limping, limited range of motion, and in some cases, systemic signs such as fever, psoriasis, or eye inflammation.

Because these symptoms can closely resemble those of other spinal conditions like sciatica or herniated discs, a precise diagnosis is essential. Diagnosis is made through a combination of the patient’s medical history, physical examination, and imaging studies such as X-rays, MRI, CT scans, or bone scans to determine the extent of joint involvement and rule out other causes.

For patients who do not respond to conservative treatments, advanced surgical options are available. One such minimally invasive procedure involves same-day outpatient surgery using SACRIX SI Joint Fusion® technology. This procedure requires less than a one-inch incision, allowing patients to return home the same day with a rapid recovery time. The Sacrix Sacrofuse system is specifically designed to treat degenerative sacroiliitis and sacroiliac joint disruption through a safe, percutaneous lateral-oblique approach. Compared to the traditional lateral method, the SACRIX approach results in minimal blood loss and quicker post-operative recovery.

Engineered for superior stability, SACRIX technology has demonstrated 400 times the pull-out strength when compared to the SI-Bone triangular wedge. This innovation provides a durable solution for patients needing sacroiliac joint fusion, with proven clinical effectiveness and reduced overall surgical impact.