Thoracic Myelopathy Due to Ossification of Ligamentum Flavum: Three cases Report / 대한척추외과학회지

ABSTRACT

Ossification of the ligamentum flavum (OLF) is a definite clinical entity and is thought to be a form of ectopic ossification which develops predominantly in the lower thoracic spine. OLF causes progressive compressive myelopathy, radiculopathy, or combination of both. We experienced 3 cases of OLF with neurological symptoms, which were treated by posterior decompressive laminectomy and removal of the ossified ligamentum flavum with or without fusion with symptomatic improvement.