Minimally Invasive Sacroiliac Fixation for Extension of Fusion in Cases of Failed Lumbosacral Fusion

Sacroiliac fusion and instrumentation extension for correction of failed lumbosacral fusions traditionally requires a long revision surgery. Reopening of the prior surgical incision to expose the prior instrumentation requires a large incision with increased blood loss, increased operative time, increased risk of infection, and longer hospitalization times. We describe the first case series using a minimally invasive surgical sacroiliac screw technique for extension of a prior fusion to the pelvis. Using two small 3-cm paramedian incisions on each side, we were able to obtain autologous iliac crest bone graft, place the sacroiliac screw minimally invasive, perform an arthrodesis, and connect the prior surgical hardware to the sacroiliac screw safely. A detailed review of surgical technique, clinical cases, and brief review of the literature is discussed.