| 摘要 |
An object of the present invention is to provide an interspinous spacer which can be reliably held between adjacent spinous processes to maintain an appropriate space between the adjacent spinous processes, and in particular to provide an interspinous spacer which allows a less invasive operation to be carried out without extensive resection of bone or soft tissue. The interspinous spacer 1 is adapted to be used by inserting it into a space between a spinous process 101 and a spinous process 102, and it is formed from a block body having a recess 21 for receiving a part of each of the spinous processes in a state that the block body is inserted into the space between the spinous processes 101 and 102. The recess 21 is formed in the peripheral surface of the block body 2. The recess 21 has an arc-shaped bottom. The depth of the recess 21 is in the range of 0.5 to 10 mm, and the width of the recess is in the range of 1 to 15 mm. Further, the block body 2 is formed into a substantially cylindrical shape.
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