Surgical treatment of a Malgaigne fracture.

Sacral fractures are generally accompanied by pelvic ring fractures. They rarely develop in an isolated form. Sacroiliac dislocation without sacral fracture is extremely rare. We report a case with a sacroiliac dislocation without sacral fracture, which was treated surgically. Lumbopelvic stabilization was applied using iliac wing plates. The case was evaluated according to his clinical condition and visual analogue score (VAS), American Spinal Injury Association (ASIA) and Oswestry scales. Considering the role of the sacrum, which transmits the load of the entire spine to the pelvis, meticulous care must be given to ensure the mechanic stability of the spine when evaluating patients with sacral and pelvic fractures. Very serious spinopelvic instability is present in sacroiliac dislocations even in the absence of sacral fractures. Caudal migration of the sacrum together with the cranial migration of the iliac wings can cause serious pelvic imbalance and difficulties in walking and maintaining a standing position. Aggressive stabilization and fusion are required, and these must be performed in the early period.