| 摘要 |
The present invention provides a pedicle screw system, which may include a bone fixation element having an elongate body. The elongate body may include a threaded segment having one or more spiral-oriented grooves, a neck segment adjacent to the threaded segment, and a head segment which is able to receive and/or couple to an orthopedic instrument or implant. The pedicle screw system may further include an anchoring element movably positionable about the bone fixation element. The anchoring element may include one or more elongate teeth which may be slidably positionable into a desired tissue region. |
