Biportal Endoscopic Techniques for Severe Dural Ossification in Thoracic Ossification of the Ligamentum Flavum: Insights From Preoperative Imaging

UBE surgery effectively manages progressive thoracic OLF associated with dural ossification. Preoperative CT imaging is essential for assessing dural involvement and guiding surgical techniques. Microscopic surgery is recommended for inexperienced surgeons requiring wide dural excision.