Evidence map›Paper›PMID 34617812›Full record

ArticleGlobal spine journal2023

Location of the Femoral Nerve in the Lateral Decubitus Versus Prone Position.

Ram Alluri, Nicholas Clark, Evan Sheha, Karim Shafi, Matthew Geiselmann, Han Jo Kim, Sheeraz Qureshi, James Dowdell

Abstract read
In one paragraph

Article in Global spine journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Article
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  3. Article
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  5. Article
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  8. Surgical outcome after treatment of thoracolumbar spinal stenosis in adults with achondroplasia.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
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Prone position lateral interbody fusion-a narrative review.Journal of spine surgery (Hong Kong) · 2023
    Review
  15. A retrospective review of single-position prone lateral lumbar interbody fusion cases: early learning curve and perioperative outcomes.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
  16. Review
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  18. 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.

Ram AlluriHospital for Special Surgery, New York, NY, USA.ORCID 0000-0001-5919-707X
Nicholas ClarkHospital for Special Surgery, New York, NY, USA.ORCID 0000-0003-2111-7032
Evan ShehaHospital for Special Surgery, New York, NY, USA.
Karim ShafiHospital for Special Surgery, New York, NY, USA.ORCID 0000-0002-6695-5593
Matthew GeiselmannNew York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA.
Han Jo KimHospital for Special Surgery, New York, NY, USA.
Sheeraz QureshiHospital for Special Surgery, New York, NY, USA.ORCID 0000-0002-7177-1756
James DowdellHospital for Special Surgery, New York, NY, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designCadaveric study.

objectiveTo compare the position of the femoral nerve within the lumbar plexus at the L4-L5 disc space in the lateral decubitus vs prone position.

methodsSeven lumbar plexus specimens were dissected and the femoral nerve within the psoas muscle was identified and marked with radiopaque paint. Lateral fluoroscopic images of the cadaveric specimens in the lateral decubitus vs prone position were obtained. The location of the radiopaque femoral nerve at the L4-L5 disc space was normalized as a percentage of the L5 vertebral body (0% indicates posterior location and 100% indicates anterior location at the L4-L5 disc space). The location of the femoral nerve at L4-L5 in the lateral decubitus vs prone position was compared using a paired t test.

resultsIn the lateral decubitus position, the femoral nerve was located 28% anteriorly from the posterior edge of the L4-L5 disc space, and in the prone position, the femoral nerve was relatively more posterior, located 18% from the posterior edge of the L4-L5 disc space (

conclusionsThe femoral nerve was on average more posteriorly located at the L4-L5 disc space in the prone position compared to lateral decubitus. This more posterior location allows for a larger safe zone at the L4-L5 disc space, which may decrease the incidence of neurologic complications associated with Lateral lumbar interbody fusion in the prone vs lateral decubitus position; however, further studies are needed to evaluate this possible clinical correlation.

Indexed as

cadaverlateral decubituslateral lumbar interbody fusionlumbar plexusprone

Identifiers

PMID34617812
PMCPMC10556917

What OpenQuestion holds

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Registered trials

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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.