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Updated: Jun 20, 2026

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum (TOLF) Using Ultrasonic and Conventional Osteotomes
Published on: April 21, 2023
Ligamentum flavum haematoma: a report of two cases
Hiroshi Takahashi1, Akihito Wada, Yuichirou Yokoyama
1Department of Orthopaedic Surgery, Toho University School of Medicine, 6-11-1 Omori-nishi Ota-ku Tokyo, 143-8541, Japan. drkan@med.toho-u.ac.jp
Abstract:
We present 2 cases of ligamentum flavum haematoma causing root compression. Magnetic resonance imaging showed an epidural mass linked to the ligamentum flavum. The mass was isointense in T1-weighted images, and was centrally hyperintense and peripherally hypointense in T2-weighted images. Surgical removal of the ligamentum flavum achieved resolution of the symptoms. The definitive diagnosis could only be confirmed by histopathological examinations. The differential diagnoses include lumbar disc herniation and lumbar spinal canal stenosis caused by neoplasm, infection, epidural haematoma, or facet cyst.
