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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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Bibliographic Details
Published in:European spine journal 2020-02, Vol.29 (2), p.306-313
Main Authors: Farah, Kaissar, Leroy, Henri-Arthur, Karnoub, Melodie-Anne, Obled, Louis, Fuentes, Stephane, Assaker, Richard
Format: Article
Language:English
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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  
ISSN:0940-6719
1432-0932
DOI:10.1007/s00586-019-06107-w