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目的:测量特发性脊柱侧凸患者胸椎椎弓根的有关数据,探讨其临床应用价值。方法:在30例特发性脊柱侧凸患者术前CT扫描片上测量胸椎椎弓根的宽度、深度、角度、椎体旋转角度等数据,根据所得数据选定置入螺钉的直径、长度,确定置入方向和深度。术后对置入螺钉的胸椎椎弓根节段行CT扫描,判断置钉位置。结果:CT测量的各项数据显示胸椎椎弓根适合椎弓根螺钉的置入。以此为依据术中置入胸椎弓根螺钉共245枚,228枚(93%)置入无误,6枚穿破椎弓根外壁,9枚穿破椎弓根下壁,2枚穿破椎弓根内壁,无神经系统并发症。结论:术前CT扫描测量特发性脊柱侧凸患者的胸椎椎弓根的有关数据可为选择适当长度和直径的螺钉并将其准确置入胸椎椎弓根内提供参考,从而保证螺钉安全置入。
Objective: To evaluate the clinical data of thoracic pedicle of idiopathic scoliosis patients. Methods: Thoracic pedicle width, depth, angle and rotation angle of vertebral body were measured on 30 preoperative CT scans of patients with idiopathic scoliosis. According to the data, the diameter and length of the pedicle screw were selected and determined Insert direction and depth. Postoperative screw into the thoracic pedicle of the line CT scan to determine the placement of nail position. Results: The CT measurements showed that the thoracic pedicle was suitable for pedicle screw placement. Based on this, a total of 245 thoracic pedicle screws were inserted and 228 (93%) were implanted into the thoracic vertebral pedicle. 6 penetrated pedicle wall, 9 penetrated pedicle wall, Bowel wall, no neurological complications. Conclusions: Preoperative CT scan of the thoracic pedicle in patients with idiopathic scoliosis can provide a reference for the selection of appropriate length and diameter of the screw and its accurate placement in the thoracic pedicle, so as to ensure the safety of the screw Into.