Male, 48 years old, with history of thoracic laminectomy, evaluate decompression. Postoperative changes are redemonstrated compatible with complete laminectomy at T7 with partial laminectomy at T6 and T8. The spinal canal is congenitally slender. At the operative levels, the caliber of the spinal canal is similar to or slightly wider than the remained of the thoracic spine. There is minimal T2 hyperintensity in the cord at T7/8 likely representing myelomalacia from prior stenosis. Spinal alignment is adequate. Vertebral body heights are preserved allowing for minimal degenerative loss of height at lower levels. Fatty marrow change is seen in the mid thoracic vertebral bodies compatible with endplate degeneration. At T4-5, there is a left paracentral protrusion causing mild canal stenosis and left foraminal narrowing. At T8-9, there is a bulky right anterior osteophyte.At T10-11, a disc bulge and facet arthropathy result in moderate canal stenosis and moderate bilateral foraminal narrowing. At T11-12, a disc bulge and facet arthropathy result in mild canal stenosis, moderate right and mild left foraminal narrowing.
Findings are seen indicating surgical decompression of the spinal canal from T6 through T8. The caliber of the canal at these levels is at least as wide if not wider than the rest of the thoracic region. Minimal cord signal abnormality at T7/8 likely reflects myelomalacia from prior stenosis. 