Lumbar Spinal Stenosis Due to Ligamentum Flavum Hypertrophy in a Patient with Multiple Exostosis Multipl Ekzostozu

Abstract

Hereditary multiple exostosis is an autosomal dominant disease characterized by multiple exostoses (osteochondromas) usually affecting the metaphysical regions of long bones, usually of the Iover extremity, and seldom occurring in the axial skeleton. In the literature, hereditary multiple exostosis cases that developed spinal canal stenosis due to spinal osteochondromas have been reported. Lumbar spinal stenosis may occur in a hereditary multiple exostosis patient due to ligamentum flavum hypertrophy, which is a hyperosteotic process that differs from exostosis. We discuss one such case, along with pathogenetic mechanisms and clinical features.