Evidence map›Paper›PMID 34098632›Full record

ArticleAnnals of coloproctology2022

Lithotomy versus prone position for perianal surgery: a randomized controlled trial.

Pankaj Kumar, Tushar S Mishra, Siddhant Sarthak, Prakash Kumar Sasmal

Open access · goldAbstract read
In one paragraph

Article in Annals of coloproctology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.0field-weighted citation impact, top 24% of its field
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

6 citing papers in PubMed, 9 citations in OpenAlex.

  1. Review
  2. A scoping review of cognitive load assessment tools suitable for clinicians performing REBOA.Scandinavian journal of trauma, resuscitation and emergency medicine · 2025
    Article
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  4. Latest Research Trends on the Management of Hemorrhoids.Journal of the anus, rectum and colon · 2025
    Review
  5. Article
  6. 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

4 authors at 1 institution in 1 country.

Pankaj KumarDepartment of General Surgery, All India Institute of Medical Sciences (AIIMS) Bhubaneswar, Bhubaneswar, India.
Tushar S MishraDepartment of General Surgery, All India Institute of Medical Sciences (AIIMS) Bhubaneswar, Bhubaneswar, India.
Siddhant SarthakDepartment of General Surgery, All India Institute of Medical Sciences (AIIMS) Bhubaneswar, Bhubaneswar, India.
Prakash Kumar SasmalDepartment of General Surgery, All India Institute of Medical Sciences (AIIMS) Bhubaneswar, Bhubaneswar, India.
All India Institute of Medical Sciences Bhubaneswar · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeStudies objectively comparing lithotomy and prone positions regarding surgeon comfort, ergonomics, patient comfort, and position related complications are scarce.

methodsThe patients posted for surgery of either fistula in ano, hemorrhoids, or were included in this study. Subjective Mental Effort Questionnaire (SMEQ) and Local Experienced Discomfort (LED) scale were used to score the level of mental and physical stress among the operating surgeon, assistants, and the scrub nurse. Other parameters studied were the exposure of the operative site, patient comfort level, and position-related complications.

resultsThirty patients were operated in each position. Mean±standard deviation of jackknife prone vs. lithotomy surgeon SMEQ score (15.6±10.4 vs. 107.0±11.5, P<0.05) and LED score (1.8±1.5 vs. 6.7±0.5, P<0.05) were found to be statistically significant. Prone vs. lithotomy assistant SMEQ score (29.1±13.1 vs. 100.6±8.7, P<0.05) and LED score (4.6±1.1 vs. 7.4±0.8, P<0.05) were also found to be statistically significant. SMEQ (10.0±0.0 vs. 20.6±2.5, P<0.05) and LED scores (1.1±0.3 vs. 3.3±0.5, P<0.05) of scrub nurses and LED scores (2.5±0.5 vs. 6.3±0.7, P<0.05) of patients were also statistically significant. Exposure of the operative site was significantly better in the prone position (5.0 vs. 2.1, P<0.05).

conclusionSignificantly better SMEQ, LED, and exposure score suggests the superiority of jackknife prone position over the lithotomy in terms of significantly less mental and physical stress to the operating surgeon, assistant, and scrub nurse; better ergonomics, and excellent exposure.

Indexed as

ErgonomicsLithotomyPerianal procedureProne position

Identifiers

PMID34098632
PMCPMC9021856
OpenAlexW3170125650

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LicenceCC BY-NC
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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.