Multilevel thoracic ossification of ligamentum flavum coexisted with/without lumbar spinal stenosis: staged surgical strategy and clinical outcomes

摘要

BackgroundThoracic ossification of ligamentum flavum (TOLF) is a progressively disabling disease. Isolated or continuous TOLF has been frequently reported in literature, however there are very few reports of multilevel or non-continuous TOLF. The purpose of the study was to discuss the surgical strategy of multilevel TOLF and evaluate safety and efficacy of a two-stage operation regimen.