The present invention provides an osteophyte removal device for removing osteophyte protruding toward an intervertebral foramen. The present invention comprises: a working cannula including a working tube which is inserted into the body of a patient to be fixed to a fixed point of the vertebrae adjacent to a surgical site and has a trephine inserted thereinto; and the trephine guided to the surgical site along the working tube of the working cannula and removing the osteophyte superficial in the vertebrae. An anchor tip is formed at the front end of the working cannula to protrude by a predetermined length and be inserted into the fixed point, thereby allowing the working cannula to be fixed to rotate about the fixed point. The trephine comprises: a pipe-shaped connection tube inserted into the working tube; a trephine blade formed at the front end of the connection tube and protruding to a working tube front end of the working tube to grind the osteophyte superficial on the vertebrae; and a handle part formed at the rear end of the connection tube. Accordingly, precise access is possible.
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