摘要
目的 探讨椎弓根螺钉置入技术及并发症原因。方法 将资料较完善的 2 5 4例共 90 2枚螺钉进行了回顾性分析 ,每例术后至少随访 2年。通过术中、术后和随访的正侧、左右斜位片及2 12例手术取出螺钉 ,来评估螺钉置入位置的准确性。结果 90 2枚螺钉中 ,844 (93.6 % )枚位置正确 ,40枚 (4 .4% )穿破弓根皮质、18枚 (2 % )钻透椎前皮质 ;5例发生神经根损伤 ;5 4枚 (6 .6 % )和115枚 (12 .7% )术后分别发生断裂和弯曲 ,其中断裂螺钉的 4例假关节形成。结论 术中、术后的正侧。
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.
出处
《颈腰痛杂志》
2001年第2期103-106,共4页
The Journal of Cervicodynia and Lumbodynia
