一种新的颈椎前路椎弓根螺钉植入技术。
A new technique for anterior cervical pedicle screw implantation.
机构信息
Department of Orthopaedics, Ningbo Sixth Hospital, Ningbo, China.
出版信息
Orthop Surg. 2011 Aug;3(3):193-8. doi: 10.1111/j.1757-7861.2011.00145.x.
OBJECTIVE
To introduce and evaluate a new technique, anterior pedicle screw implantation, for anterior cervical reconstruction.
METHODS
Seven patients (five men and two women) with an average age of 65 years were included in this group. After carefully preparation, anterior pedicle screws were implanted under fluoroscopy in all patients. The position of the anterior pedicle screws was evaluated three days postoperatively by X-ray and CT imaging. The mean recovery rate as assessed by the Japanese Orthopaedic Association (JOA) score was recorded at final follow-up.
RESULTS
A total of fourteen anterior pedicle screws were implanted in our group. The average follow up period was 8 months. The mean JOA score was 12.5 preoperatively and 14.8 postoperatively. The mean improvement in the JOA score was 50.5% at final follow-up. The average local alignment improved from 4.0 of kyphosis preoperatively to 6.5 of lordosis at final follow-up. Early bony union was observed in four cases that were followed up for more than 3 months. There were no serious complications. No "pedicle perforation" was observed in any of the fourteen anterior pedicle screws, whereas one screw exposure occurred.
CONCLUSION
Anterior cervical pedicle screw implantation is a feasible method for selected cases. It provides another choice for strong anterior cervical reconstruction.
目的
介绍和评估一种新的技术，即前路椎弓根螺钉植入术，用于前路颈椎重建。
方法
本研究纳入了 7 名患者（5 名男性，2 名女性），平均年龄为 65 岁。所有患者均在仔细准备后，在透视下植入前路椎弓根螺钉。术后 3 天通过 X 线和 CT 影像学评估前路椎弓根螺钉的位置。最终随访时通过日本矫形协会（JOA）评分评估平均恢复率。
结果
本研究共植入了 14 枚前路椎弓根螺钉。平均随访时间为 8 个月。术前 JOA 评分为 12.5 分，术后为 14.8 分。最终随访时 JOA 评分平均改善 50.5%。局部对线从术前的平均 4.0 度后凸改善至最终随访时的 6.5 度前凸。在随访时间超过 3 个月的 4 例中观察到早期骨性融合。无严重并发症。14 枚前路椎弓根螺钉中均未出现“椎弓根穿孔”，但有 1 枚螺钉暴露。
结论
前路颈椎椎弓根螺钉植入术对于特定病例是一种可行的方法。它为强有力的前路颈椎重建提供了另一种选择。
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