Which is the Preferred Revision Technique for Loosened Iliac Screw?: A Novel Technique of Boring Cement Injection From the Outer Cortical Shell.

Wadding corticocancellous bone and increasing screw length failed to provide sufficient anchoring strength for a loosened iliac screw; however, both traditional and boring PMMA-augmented techniques could effectively increase the fixation strength. On the basis of the viewpoint of minimal invasion, the boring PMMA augmentation may serve as a suitable salvage technique for iliac screw loosening. Yu BS, Yang ZK, Li ZM, Zeng LW, Wang LB, Lu WW. J Spinal Disord Tech. 2011 Jun 16. [Epub ahead of print] PMID: 21685804