[Minimally invasive lumbopelvic stabilization of sacral fracture and sacroiliac injury].

Objective: Rapid mobilization with full weight bearing by minimally invasive fixation of Os ilium to L5 in fractures of the sacrum and disruption of the sacroiliac joint (SIJ).
Indications: Unstable injuries of the posterior pelvic ring in fractures of the sacrum and disruption of the SIJ.
Contraindications: Fracture of ilium and not injury related implants in the screw trajectory, neurological deficits regarding the fracture, decubitus in the area of surgical approach.
Surgical Technique: Minimally invasive screw placement in the pedicles of L5, access of ilium screw via the posterior superior iliac spine. Radiological display for the iliacal screw bearing trajectory in Os Ilium as a drop-shaped/triangle canal. Insert a Jamshidi needle orthograde in the beam path, change to guide wire and placement of iliacal screw after resection of the bone in the screw head area. Submuscular insertion of the longitudinal rods, in case of double-sided instrumentation similar procedure on the opposite side, reduction of the fracture and fixation of the rods to screws.
Postoperative Management: Postoperative mobilization with full weight bearing under physiotherapeutic guidance.
Results: Patients treated with lumbopelvic stabilization in our facility between 2012 and 2017 were identified via the hospital database and retrospectively evaluated. In 24 patients with median age of 60.1 years and a follow-up-time of 11.8 months, we found no implant displacement, infection and no wound healing problems. Full weight bearing was permitted in 21 of 24 cases, in 3 cases partial load bearing due to other injuries. Three patients reported moderate mechanical irritation of iliacal screws; 1 patient reported severe irritability with removal of the implants after bony healing of fracture 1 year postoperatively.
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