posterior column


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column

 [kol´um]
an anatomical part or other structure that resembles a pillar.
anal c's vertical folds of mucous membrane at the upper half of the anal canal; called also rectal columns.
anterior column the anterior portion of the gray substance of the spinal cord, in transverse section seen as a horn.
gray column the longitudinally oriented parts of the spinal cord in which the nerve cell bodies are found, comprising the gray matter of the spinal cord.
lateral column the lateral portion of the gray substance of the spinal cord, in transverse section seen as a horn; present only in the thoracic and upper lumbar regions.
posterior column the posterior portion of the gray substance of the spinal cord, in transverse section seen as a horn.
rectal c's anal columns.
spinal column (vertebral column) spine (def. 2).
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pos·te·ri·or col·umn

[TA]
the pronounced, dorsolaterally oriented ridge of gray matter in each lateral half of the spinal cord, corresponding to the posterior or dorsal horn appearing in transverse sections of the cord.
Farlex Partner Medical Dictionary © Farlex 2012

pos·te·ri·or col·umn

(pos-tēr'ē-ŏr kol'ŭm) [TA]
The pronounced, dorsolaterally oriented ridge of gray matter in each lateral half of the spinal cord, corresponding to the posterior or dorsal horn appearing in transverse sections of the cord.
Synonym(s): posterior column of spinal cord (1) .
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
COMBINING THE ANTERIOR, MIDDLE AND POSTERIOR COLUMNS IN AIRWAY ASSESSMENT
Some surgeons have modified SPO into a more posterior column resection and anterior osteoclasis and have achieved over 30[degrees] of correction at one level.[sup][8] It should be noted that SPO is susceptible to sagittal translation of the spinal column, which can cause cord compromise.
The prominent sensory ataxia with only mild motor findings pointed toward a lesion of the posterior columns. This finding, in conjunction with a history of macrocytic anemia, suggested the subacute combined degeneration syndrome of vitamin B12 deficiency.
Lee, "New posterior column reconstruction using titanium lamina mesh after total en bloc spondylectomy of spinal tumour," International Orthopaedics, vol.
Acetabular fractures of the anterior column or wall, frequently with involvement of the posterior column (both column, anterior column with posterior hemitransverse fracture or transverse fractures) and an associated disruption of the quadrilateral surface (Figure 1) with consecutive medial displacement of the femoral head, show a high incidence especially in elderly patients [1-3].
All fracture types based on Letournel and Judet classification involving the anterior column, anterior wall, posterior column, and posterior wall, except the ones mentioned in the exclusion criteria, were included.
Fracture patterns were transverse in 5 (1 males and 4 females); posterior wall in 3 (1 male and 2 females); posterior column and wall in 1 (a female); one transverse and posterior wall (a female); and 1 with associated femoral neck fracture.
The advantages of LLIF compared with PLIF or TLIF are avoidance of blood loss from the extradural venous plexus, less invasion of the posterior column and muscle, and possibly faster interbody fusion with a higher fusion rate [11].
The fracture site was the centre of stress; the steel plate cannot withstand the posterior column tension at the position of neck flexion.
In the anatomical three-column model described by Denis (5), the anterior column includes the anterior longitudinal ligament and the anterior half of the vertebral body and the annulus fibrosus, the middle column includes the posterior half of the vertebral body and the annulus fibrosus along with the posterior longitudinal ligament, and the posterior column includes the bone and ligamentous structures posterior to the posterior longitudinal ligament.
They have also suggested that the pedicle connects the anterior column (body) and posterior column (Neural arch).
The posterior column of the acetabulum was addressed via a Kocher Langenbeck approach [7] and the anterior column was addressed with a Pfannenstiel incision and a modified-Stoppa approach [8].

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