The use of wire rings for the fixation of spinal grafts.

PoorlY developed alld 111 lumbo-sacral fusions fixation of the grafts by soft stainless steel wire rings ilas heell foulld most useful. Indeed the rings give such excellent fixation that I have used tilenl elsewllere Ill l)referellce to tile H-shaped graft, and they have the additional advantage that all\’ nunlber of vertebrae can be fused. Technique-The metilod resenll)leS the illsertiOn of a ring into a pig’s nose; ill fact tile pliers use(l to hold and close the rings are identical. The rings (Fig. 1) are made of non-toxic stainiess steel allol it is advisai)le to have tilem opened widely so that tile greatest possible