在内侧束，多裂肌起源于骶骨。
In the medial tract, the multifidi originates on the sacrum.
结论：上述数据解决了腰椎损伤后多裂肌横断面积是否迅速减少的疑问。
Conclusions. These data resole the controersy that the multifidus cross-sectional area reduces rapidly after lumbar injury.
Tsutsumimoto等使用MRI评估行后路腰椎体间融合术患者的多裂肌状况21。
Tsutsumimoto et al. used MRI to assess the multifidus muscle in patients treated with a posterior lumbar interbody fusion21.
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