Enlargement of the Lumbar Spinal Canal by Wire-Saw Set

We developed a surgical set for the enlargement procedure performed on spinal canals affected by lumbar canal stenosis.This system includes a wire-device for cutting the pars interarticularis, a lamina holder and a hall in one guide for drilling a hole in the removed lamina, titanium screws, and a screw driver.The guide pipe, pipe holder, and wire-saw with round tip are connected together, enabling the pars interarticularis to be cut more easily and safely than before. Screw holes can be drilled easily by the lamina holder and hall in one guide. After the lamina is replaced, the cutting lines of the pars interarticularis are so sharp increasing the rate of bony union.Use of titaniun screws also allows post-operative MRI to be observed easily.