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Does the hip positioning matter for oblique lumbar interbody fusion approach? A morphometric study
Purpose To evaluate whether left hip positioning widened the access corridor using oblique lateral interbody fusion (OLIF) approach during right lateral decubitus (RLD). Methods Ten healthy adult volunteers underwent a T2 lumbosacral MRI (1.5 T) in the supine position, RLD position with left hip in...
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Published in: | European spine journal 2020-02, Vol.29 (2), p.306-313 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Purpose
To evaluate whether left hip positioning widened the access corridor using oblique lateral interbody fusion (OLIF) approach during right lateral decubitus (RLD).
Methods
Ten healthy adult volunteers underwent a T2 lumbosacral MRI (1.5 T) in the supine position, RLD position with left hip in extension and then in flexion. L2–L3 to L5–S1 disc spaces were identified. At each level, left psoas surface (in cm
2
), access corridor (in mm) and vessel movement were calculated in the three positions. Paired
t
test was used for comparison.
Results
The mean surface of the left psoas ranged from 7.83 to 17.19 cm
2
in the three positions (
p
> 0.05). From L2–3 to L4–5, in RLD, when the left hip shifted from extension to flexion, nor the access corridor nor vessel movements were significantly different. When the volunteers shifted from supine to RLD position with hip in extension, arteries moved 3.66–5.61 mm to the right (
p
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ISSN: | 0940-6719 1432-0932 |
DOI: | 10.1007/s00586-019-06107-w |