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Removal of broken pedicle screws. Technical note
K Miyamoto1, K Shimizu, K Kouda
1Department of Orthopaedic Surgery, Gifu University, School of Medicine, Gifu City, Japan. kei@gix.or.jp
Journal of Neurosurgery
|July 17, 2001
Summary
A novel technique effectively removes broken pedicle screws using microscopic visualization and a diamond burr, preserving the screw hole for re-implantation without complications.
Area of Science:
- Spinal Surgery
- Orthopedic Devices
- Surgical Techniques
Background:
- Broken pedicle screws can complicate spinal fusion surgery.
- Revision surgery often requires challenging removal techniques.
- Preserving the vertebral bone and screw hole is crucial for stability.
Purpose of the Study:
- To present a simple, minimally invasive method for removing broken pedicle screws.
- To evaluate the efficacy and safety of this new technique.
- To demonstrate the feasibility of re-using the existing screw hole.
Main Methods:
- A narrow slot is created on the broken screw surface using a 2-mm diamond burr under microscopic visualization.
- A minus screwdriver is inserted into the slot to rotate and extract the broken screw.
- No enlargement of the surrounding screw hole or specialized equipment is needed.
Main Results:
- The technique successfully removed broken pedicle screws in two clinical cases.
- No intraoperative or postoperative complications were reported.
- The pedicle and screw hole integrity were maintained in all cases.
Conclusions:
- This method offers a simple and effective solution for broken pedicle screw removal.
- Preservation of the screw hole allows for immediate re-insertion of new pedicle screws.
- This technique enhances the reliability of spinal fixation revision procedures.