Morphometric Study of the Lumbar Posterior Longitudinal Ligament
Journal of Korean Neurosurgical Society
;
: 89-96, 2018.
Article
in English
| WPRIM
| ID: wpr-765220
ABSTRACT
OBJECTIVE:
Morphometric data for the lumbar posterior longitudinal ligament (PLL) was investigated to identify whether there is a difference in the morphometry of the PLL of the lumbar spine at each level with respect to the pattern of intervertebral disc displacement.METHODS:
In 14 formalin-fixed adult cadavers (12 males and 2 females), from L1 to L5, the authors measured the width and height of the PLL and compared them with other landmarks such as the disc and the pedicle.RESULTS:
Horizontally, at the upper margin of the disc, the central portion of the superficial PLL covered 17.8–36.9% of the disc width and the fan-like portion of the PLL covered 63.9–76.7% of the disc width. At the level of the median portion of the disc, the PLL covered 69.1–74.5% of the disc width. Vertically, at the level of the medial margin of the pedicle, the fan-like portion of the PLL covered 23.5–29.9% of the disc height. In general, a significant difference in length was not found in the right-left and male-female comparisons.CONCLUSION:
This study presents the morphometric data on the pattern of intervertebral disc displacement and helps to improve the knowledge of the surgical anatomy of the lumbar PLL.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Spine
/
Cadaver
/
Longitudinal Ligaments
/
Intervertebral Disc Displacement
/
Lumbar Vertebrae
Limits:
Adult
/
Humans
/
Male
Language:
English
Journal:
Journal of Korean Neurosurgical Society
Year:
2018
Type:
Article
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