腰椎椎弓峡部裂患者的椎间盘退变

Disc degeneration in patients with spondylolysis

目的：探讨腰椎椎弓峡部裂患者的椎间盘退变程度及其临床意义。方法：对７３ 例腰椎椎弓峡部裂行腰椎ＭＲＩ 检查。在正中矢状面ＭＲＩ 图像上根据Ｔ２ 加权像椎间盘信号强度判定相邻腰椎椎间盘退行性变程度。结果：７３ 例中椎间盘退变程度０ 级２２ 例，１ 级１７ 例，２ 级１３ 例，３ 级１４ 例，４ 级７ 例。椎间盘退变程度与年龄相关性非常显著（ Ｐ＜ ０ ．０１） ，但与腰椎滑脱程度相关性不显著（ Ｐ＞ ０ ．０５） 。结论：术前ＭＲＩ 检查有助于判定椎间盘退变程度并选择正确的融合术式。

To investigate the degree of disc degeneration in patients with spondylolysis and its clinical significance.Methods:Lumbar MRI examination was performed upon 73 patients with spondylolysis.The grade of degeneration at the adjacent segments was evaluated upon the signal intensity of midsagittal T 2 weighted images.Results:22 discs were identified with grade 0,17 discs grade 1,13 discs grade 2,14 discs grade 3 and 7 discs grade 4.The grade of disc degeneration was signifcicantly correlated with the age( P <0.01) but irrelative with the grade of vertebral slip( P > 0.05) .Conclusion:Preoperative MRI examination is of great importance to evaluation of disc degeneration and to the choice of optical fusion protocol.