Evaluation of the IFuse Bedrock Technique in Association with Posterior Lumbosacral Fusion with Iliac Fixation.

Lumbosacral arthrodesis on 2 or more spinal segments (including at least L4, L5 and S1 vertebrae) associated with a sacroiliac fusion procedure according to the Bedrock technique using the iFuse 3D system and iliac fixation.