Modified polymethylmethacrylate cervical plate and screw augmentation technique for intraoperative XXXX .

@entity4625 @entity1 @entity130 @entity9509 @entity4048 @entity158 @entity1349
STUDY DESIGN: Case report including technical note. OBJECTIVE: We describe 2 cases of intraoperative cervical plate @entity1349 treated by modified screw augmentation using polymethylmethacrylate ( @entity4625 ), which used the anchoring effect of hardened @entity4625 . SUMMARY OF BACKGROUND DATA: Intraoperative @entity1349 during cervical plating is not rare. @entity4625 augmentation for a damaged pilot hole is one of the rescue techniques in such a case. METHODS: A 52-year-old @entity1 who had complained of @entity4048 and left @entity158 underwent anterior cervical discectomy and plating with cage at the level of C6/7. An 82-year-old @entity1 presenting bilateral arm weakness and @entity158 after @entity130 underwent the same operation at @entity9509 . Both of them showed intraoperative @entity1349 , which was rectified by modified screw augmentation with @entity4625 . The difference between this technique and conventional @entity4625 augmentation is the anchoring effect of hardened @entity4625 . This technique does not need a new screw trajectory, but uses the existing dead space around the loosened screw. After filling the dead space with about 0.5 mL of @entity4625 , we inserted a small-sized screw. Once the @entity4625 hardened, we could remove the small screw and insert a thicker screw along the existing screw thread to increase the screws' pullout strength and achieve rigid fixation of plate. RESULTS: The condition of both @entity1 improved without any instrument failure. In the first case, the visual analog scale and Neck Disability Index improved from 10 to 1 and from 64% to 2%, respectively. In the other @entity1 , the visual analog scale and Neck Disability Index improved from 10 to 4 and from 66% to 40%, respectively. X-ray at 6-month follow-up showed no evidence of @entity1349 . CONCLUSIONS: This modified @entity4625 augmentation is a simple, safe, and promising surgical technique to correct intraoperative @entity1349 during cervical plating.
