Evidence map›Paper›PMID 32363049›Full record

ArticleSurgical neurology international2020

Variability in the size of the retroperitoneal oblique corridor: A magnetic resonance imaging-based analysis.

Zain Boghani, William Iii Steele, Sean M Barber, Jonathan J Lee, Olumide Sokunbi, J Bob Blacklock, Todd Trask, Paul Holman

Abstract read
In one paragraph

Article in Surgical neurology international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. A novel surgical approach using the "lateral corridor" for minimally invasive oblique lumbar interbody fusion at L5-S1: a clinical series and technical note.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2024
    Article
  2. CT-based analysis of oblique lateral interbody fusion from L1 to L5: location of incision, feasibility of safe corridor approach, and influencing factors.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2023
    Article
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Zain BoghaniDepartment of Neurosurgery, Houston Methodist Neurological Institute, Houston Methodist Hospital, Houston, Texas, USA.
William Iii SteeleDepartment of Neurosurgery, Houston Methodist Neurological Institute, Houston Methodist Hospital, Houston, Texas, USA.
Sean M BarberDepartment of Neurosurgery, Houston Methodist Neurological Institute, Houston Methodist Hospital, Houston, Texas, USA.
Jonathan J LeeDepartment of Neurosurgery, Houston Methodist Neurological Institute, Houston Methodist Hospital, Houston, Texas, USA.
Olumide SokunbiDepartment of Neurosurgery, Houston Methodist Neurological Institute, Houston Methodist Hospital, Houston, Texas, USA.
J Bob BlacklockDepartment of Neurosurgery, Houston Methodist Neurological Institute, Houston Methodist Hospital, Houston, Texas, USA.
Todd TraskDepartment of Neurosurgery, Houston Methodist Neurological Institute, Houston Methodist Hospital, Houston, Texas, USA.
Paul HolmanDepartment of Neurosurgery, Houston Methodist Neurological Institute, Houston Methodist Hospital, Houston, Texas, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA minimally invasive approach to the L2-S1 disc spaces through a single, left-sided, retroperitoneal oblique corridor has been previously described. However, the size of this corridor varies, limiting access to the disc space in certain patients. Here, the authors retrospectively reviewed lumbar spine magnetic resonance imaging (MRI) in 300 patients to better define the size and variability of the retroperitoneal oblique corridor.

methodsLumbar spine MRI from 300 patients was reviewed. The size of the retroperitoneal oblique corridor from L2-S1 was measured. It was defined as the (1) distance between the medial aspect of the aorta and the lateral aspect of the psoas muscle from L2-L5 and (2) the distance between the midpoint of the L5-S1 disc and the medial aspect of the nearest major vessel on the left at L5-S1. In addition, the rostral-caudal location of the iliac bifurcation was measured.

resultsThe size of the retroperitoneal oblique corridor at L2/3, L3/4, L4/5, and L5/S1 was, respectively, 17.3 ± 6.4 mm, 16.2 ± 6.3 mm, 14.8 ± 7.8 cm, and 13.0 ± 8.3 mm. The incidence of corridor size <1 cm at L2/3, L3/4, L4/5, and L5/S1 was 10.3%, 16.0%, 30.0%, and 39.3%, respectively. The iliac bifurcation was most commonly found behind the L4 vertebral body (

conclusionThe size of the retroperitoneal oblique corridor diminishes in a rostral-caudal direction, often limiting access to the L4/5 and L5/S1 disc spaces.

Indexed as

FusionLumbar interbody fusionMagnetic resonance imagingMinimally invasive surgicalOblique lumbar interbody fusion

Identifiers

PMID32363049
PMCPMC7193205

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.