目的：探讨螺旋形导针配合双侧斜位X线片判断颈椎椎弓根螺钉置入孔道准确性的可行性。
Objective: To evaluate the accuracy of cervical pedicle screw pilot holes placement by bilateral oblique X-ray films with the spiral wires as the guide pin.
方法对82例椎弓完整性腰椎滑脱症的正侧位、双斜位X线平片及CT图像(24例加作CT扫描)进行分析。
Methods To analyse X-ray images of lumbar vertebrae positive side and left-right oblique position plain films and CT images (only 24 cases) of 82 patients.
方法对下颈椎不稳症21例均采用正侧双斜位及摄X线动态颈椎侧位过曲过伸片。
Methods X-ray posteroanterior, lateral, double-oblique and dynamic lateral overflexional and overextensive views were performed on 21 patients.
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