Lumbar intrathecal ligaments
| Autor: | Robert T. Binhammer, David E. Kershner |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
musculoskeletal diseases
Male Histology Nerve root Cauda Equina Dura mater Lumbar Cadaver Cisterna Magna Medicine Humans Denticulate ligaments Spinal Meninges Aged Aged 80 and over Ligaments business.industry Dissection Lumbosacral Region Cauda equina General Medicine Anatomy Middle Aged musculoskeletal system Radiography Microscopy Electron medicine.anatomical_structure Ligament Female Dura Mater business Spinal Nerve Roots Low Back Pain |
| Zdroj: | Clinical anatomy (New York, N.Y.). 15(2) |
| ISSN: | 0897-3806 |
| Popis: | A meticulous examination was performed on 56 vertebral columns from cadavers between 64 and 89 years of age. Identification of all contents within the dural sac was completed; however, the main focus was the cauda equina and lumbar region. In addition to scope dissection, radiographs and histological preparations were used to identify structures, tissue types, and any possible pathology. Discrete intrathecal ligamentous bands were observed in all cadavers examined. They were found randomly binding the dorsal nerve roots of the cauda equina to the dura. Occasional binding of the ventral nerve roots to the dorsal roots was observed. Histological examination demonstrated a dense collagen ligament varying between 0.13 and 0.35 microm in thickness and from 3 mm to 3.5 cm in length. The average number of ligaments found per cadaver was 18. These ligaments displayed a broad base attachment to the nerve root or dura of approximately 3 mm. Looping of the nerve roots associated with these ligaments was seen in one cadaver with a burst fracture. Electron microscopic studies of these ligaments demonstrated similarities to denticulate ligaments. It is suggested that the intrathecal ligaments represent remnants from fetal development of the denticulate ligaments. |
| Databáze: | OpenAIRE |
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