PROBLEM TO BE SOLVED: To provide a spacer fixing tool capable of easily and reliably performing an operation of fixing a spacer in a bone, and to provide the spacer with the spacer fixing tool capable of easily performing an operation for securing a gap between the bones.SOLUTION: The spacer fixing tool is used to fix the spacer to the bone, while inserting the spacer in the gap between the bones. The spacer fixing tool has a plurality of threads, and a rod-shaped binding member for bundling and fastening between at least one end of the plurality of threads with each other. At least one of the plurality of threads is fastened detachably from the binding member, when necessary.COPYRIGHT: (C)2013,JPO&INPIT【課題】スペーサを骨に固定する操作を容易かつ確実に行うことができるスペーサ固定用具、及び骨同士の間隙を確保する操作を容易に行い得るスペーサ固定用具付きスペーサを提供する。【解決手段】骨同士の間隙にスペーサを挿入した状態で、前記スペーサを前記骨に固定するのに用いられるスペーサ固定用具であって、複数の糸と、前記複数の糸の少なくとも一方の端部同士を束ねて固着する棒状の結束部材とを有し、前記複数の糸の少なくとも1本が、必要時に前記結束部材から分離可能に固着されていることを特徴とするスペーサ固定用具。【選択図】図1