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Minimally Invasive Fixation for Spinopelvic Dissociation: Percutaneous Triangular Osteosynthesis with S2 Alar-Iliac
Mostafa H El Dafrawy1, Babar Shafiq1, Ravi Vaswani2
1Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, Maryland.
Case:
Traumatic U- and H-type sacral fractures are often unstable, causing spinopelvic dissociation. We describe a minimally invasive approach that allows percutaneous spinopelvic fixation of unstable H-type sacral fractures using a triangular osteosynthesis construct with S2 alar-iliac screws. We present the case of a patient with traumatic lumbopelvic dissociation who underwent percutaneous S2 alar-iliac and iliosacral screw fixation.
Conclusions:
Combined percutaneous S2 alar-iliac and iliosacral screw fixation is a safe option for spinopelvic fixation and avoids the soft-tissue compromise of open approaches. The triangular osteosynthesis construct provides adequate pelvic anchor points to allow immediate weight-bearing.
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