The posterior longitudinal ligament and peridural (epidural) membrane

Loughenbury, Peter R., Wadhwani, Sharan, and Soames, Roger W. (2006) The posterior longitudinal ligament and peridural (epidural) membrane. Clinical Anatomy, 19 (6). pp. 487-492.

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Abstract

The posterior longitudinal ligament (PLL) is described as having deep and superficial layers, though recent studies have suggested that there may be three layers. Additional membranous structures have been reported, although there is no consensus as to their presence or morphology. The vertebral canal and dural sac were opened and the spinal nerve roots and spinal cord removed. The anterior dural ligaments were sectioned at their attachment to the PLL and the dura mater freed from the posterior surface of the vertebral bodies. The borders of the PLL were identified and the superficial and deep layers separated. The PLL is a wide band in the cervical region becoming more denticulate inferiorly, the widest parts being attached to the intervertebral discs (IVD) and adjacent vertebral body where the superficial and deep layers could not be separated. A continuous well developed peridural membrane attaching to the pedicles was present anterior to the deep PLL as well as a separate, thin, incomplete layer in 6 of 18 cadavers, covering the posterior surface of the superficial PLL.

Item ID: 29242
Item Type: Article (Research - C1)
ISSN: 1098-2353
Keywords: posterior longitudinal ligament, morphology, eperidural/epidural membrane, morphometry
Date Deposited: 20 Sep 2013 04:50
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1199 Other Medical and Health Sciences > 119999 Medical and Health Sciences not elsewhere classified @ 100%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920116 Skeletal System and Disorders (incl. Arthritis) @ 100%
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