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- W2350616753 abstract "Objective This review was performed to answer questions about the technique of insertion and the etiology of complications directly attributable to the screws.Methods A retrospective review of 902 pedicle screw were inserted in 254 patients,from January 1990 to January 1998.All of the patients were followed up postoperatively for a minimum of two years.The accuracy of screw placement within the pedicle was assesssed intraoperatively,postoperatively and at the time of follow up with radiographs made in the coronal,sagittal and oblique planes,it was also assessed on reoperation of removable the pedicle screw instrumentations on 212 patients.Results Of the 902 screws,844(93.6%)had been inserted within the pedicle and the vertebral body,forty screws(4.4% )had penetrated the walls of the pedicle,eighteen screws(2.0%) had perforated the anterior cortex.Irritation of a nerve root occurred in five cases and was caused by five screws(0.6%).Fifty four screws(6.6%)broke and one hundred and fifteen(12.7%)screws bent.Pseudarthrosis were found in four patients who had broken screw.Conclusion Intraoperative and postoperative use of multiple radiographs provides a reliable method for evaluation of pedicle screw insertion." @default.
- W2350616753 created "2016-06-24" @default.
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- W2350616753 date "2001-01-01" @default.
- W2350616753 modified "2023-09-25" @default.
- W2350616753 title "Complications associated with pedicle screws" @default.
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