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Related Concept Videos

Anatomical Positions01:11

Anatomical Positions

17.3K
In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
17.3K
Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

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Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
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Related Experiment Video

Updated: Nov 2, 2025

Prone Lateral Minimally Invasive Retropleural Corpectomy Using a Rotatable Radiolucent Jackson Table
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Lithotomy versus prone position for perianal surgery: a randomized controlled trial.

Pankaj Kumar1, Tushar S Mishra1, Siddhant Sarthak1

  • 1Department of General Surgery, All India Institute of Medical Sciences (AIIMS) Bhubaneswar, Bhubaneswar, India.

Annals of Coloproctology
|June 8, 2021
PubMed
Summary

The jackknife prone position significantly reduces surgeon, assistant, and nurse stress and improves operative site exposure compared to the lithotomy position. This study highlights the prone position

Keywords:
ErgonomicsLithotomyPerianal procedureProne position

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Area of Science:

  • Surgical positioning
  • Ergonomics in surgery
  • Patient safety

Background:

  • Objective comparisons of lithotomy and prone positions for surgical comfort, ergonomics, patient well-being, and complications are limited.
  • Understanding the impact of surgical positioning is crucial for optimizing operating room practices.

Purpose of the Study:

  • To objectively compare the jackknife prone position with the lithotomy position.
  • To evaluate surgeon comfort, ergonomics, patient comfort, and position-related complications.

Main Methods:

  • Patients undergoing surgery for fistula in ano or hemorrhoids were included.
  • Subjective Mental Effort Questionnaire (SMEQ) and Local Experienced Discomfort (LED) scale assessed stress levels for surgeons, assistants, and scrub nurses.
  • Operative site exposure, patient comfort, and complications were also evaluated.

Main Results:

  • The jackknife prone position showed statistically significant lower SMEQ and LED scores for surgeons, assistants, and scrub nurses compared to the lithotomy position.
  • Patients also reported significantly lower LED scores in the prone position.
  • Operative site exposure was significantly better in the prone position.

Conclusions:

  • The jackknife prone position demonstrates superiority over the lithotomy position.
  • It offers reduced mental and physical stress for the surgical team.
  • Improved ergonomics and enhanced operative site exposure are key advantages.