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

ABSTRACT:

Objective

This study evaluates surgical strategies based on preoperative computed tomography (CT) findings during unilateral biportal endoscopic (UBE) surgery for thoracic ossification of the ligamentum flavum (OLF) with dural ossification.

Methods

This retrospective study included patients undergoing posterior thoracic laminectomy via UBE surgery to treat symptomatic thoracic stenosis due to OLF. Clinical outcomes were assessed using visual analogue scale (VAS) and Japanese Orthopaedic Association (JOA) scores, alongside analyses of preoperative CT and intraoperative videos for dural ossification characteristics.

Results

A total of 34 patients participated, showing significant improvements in VAS and JOA scores postoperatively. All focal dural ossifications exhibitin

SUBMITTER: Kim JY 

PROVIDER: S-EPMC12518993 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature