a dorsally placed transacrally fixed surgical implant is described for correcting and supporting the spinal column with the implant being particularly useful for aligning and stabilizing the lumbosacral junction . direct sacral fixation is achieved utilizing a contoured metallic base plate that is firmly fixed to the sacrum by means of a plurality of screws , which screws are angularly disposed with respect to one another to maximize retention of the base plate on the sacrum . a pair of spine engagable rods , contoured to the desired spinal column configuration , have one end inserted into sockets on the base plate with the rods being locked against rotation or other movement relative to the base plate . a total fixation system is provided that has flexibility with respect to rod utilizable components , with the rods having bridges , hooks and / or wires spaced along the rods for engagement with vertebrae of the spinal column to hold the spinal column in the desired position , once achieved , as determined by the contour of the rods .