Lumbar Canal Stenosis Caused by Marked Bone Overgrowth after Decompression Surgery. (3rd June 2022)

• Record Type: Journal Article
• Authors: Shimauchi-Ohtaki, Hiroya; Minami, Manabu; Takahashi, Toshiyuki; Kanematsu, Ryo; Honda, Fumiaki; Hanakita, Junya
• Other Names: Takahashi Hiroshi Academic Editor.
• Is Part Of: Case reports in orthopedics. Volume 2022(2022)
• Publication Date: 2022-06-03
• Subjects: Orthopedics -- Periodicals; Orthopedics; Orthopedics; Periodicals; Electronic journals; Periodicals; 616.7
• DOI: 10.1155/2022/9462399
• Languages: English
• ISSNs: 2090-6749

Abstract

Abstract : Narrowing of the lumbar canal due to bone regrowth after lumbar decompression surgery generally occurs at the facet joint; it is exceedingly rare for this phenomenon to occur at the laminar arch. Herein, we describe a case of restenosis caused by marked bone overgrowth at the facet joints and laminar arch after lumbar decompression surgery. A 64-year-old man underwent partial hemilaminectomy for lumbar canal stenosis at the L3/L4 level 12 years ago. His symptoms recurred 7 years after the first surgery. Overgrowth of the laminar arch and facet joints was observed at the decompression site. Thus, partial laminectomy of L3 and L4 was performed as a second surgery. Four years after the second surgery, a laminectomy of L3-L4 was performed for bone restenosis and disc herniation. The underlying mechanism of the remarkable overgrowth of the removed lamina remains unclear. Endochondral ossification signals and mechanosignals should be comprehensively examined.