Conclusion. Dural ossification is a common finding in OLF.

结论：硬膜骨化是OLF常见的表现。

Conclusion . Dural ossification is a common finding in OLF.

结论:硬膜骨化是OLF常见的表现.

According to compression degree in image combined with clinical symptom and signs, the responsible levels were determined for multi-level or jumping OLF patients;

对于多节段及跳跃性黄韧带骨化症患者，根据影像学压迫程度，结合临床症状及体征，确定责任节段；

Summary of Background Data. Ossification of ligamentum flavum (OLF) in the lumbar region causing neurologic impairment is a rare pathologic entity described mainly in Japanese literature.

由于腰椎黄韧带骨化而导致神经功能缺损是非常罕见病理类型，而在日本相关文献中描述较多。