Result: There were 1 cases with incomplete decompression, 1 with recurrence on contiguous segments, 1 with wrong approach, 1 with restenosis on decompression region, 1 with malreduction, 2 with inappropriate position of lag screws.
Result: There were 1 cases with incomplete decompression, 1 with recurrence on contiguous segments, 1 with wrong approach, 1 with restenosis on decompression region, 1 with malreduction, 2 with inappropriate position of lag screws.
结果：减压不彻底1例，相邻节段复发1例，入路不当1例，减压区再狭窄1例，复位不良1例，螺钉位置不当2例。