The angle of laparoscopy between the left- and right-hand working ports is known as:& x20; - INI-CET EXAM -2025

INI-CET EXAM -2025

Obstetrics & Gynaecology

Easy

Appeared in: INI-CET EXAM -2025

Explanation

The manipulation angle is the angle created between the two instruments used by the surgeon's left and right hands.
This angle is crucial for achieving 'triangulation,' a principle where instruments converge on a target from lateral angles, which is essential for effective dissection and retraction.
An optimal manipulation angle, ideally around 60 degrees, prevents the surgeon's hands from being too close together or too far apart.
It also prevents the internal tips of the instruments from clashing ('sword fighting') or crossing, which would hinder surgical maneuvers.

Option B: The azimuth angle refers to the rotational angle of the laparoscope's view relative to the surgical target, not the angle between the working instruments.
Option C: The elevation angle is the angle of an instrument's shaft in the vertical plane, relative to the patient's body (the horizontal). It does not describe the relationship between two different instruments.
Option D: Extreme angle is not a standardized term in laparoscopic surgery ergonomics. While angles can be suboptimal or 'extreme' in a descriptive sense, it is not a formal name for a specific angle.

Visual 1: Diagram - An illustration showing a top-down view of a laparoscopic setup. It should clearly label the manipulation angle between the two working ports, the azimuth angle related to the camera port, and the elevation angle from a side view.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Ergonomics and port placement in laparoscopic surgery as background academic context rather than a clinical decision trigger.
Proper port placement to achieve an ideal manipulation angle is critical for patient safety and surgical efficiency. It reduces operative time and minimizes surgeon fatigue.
A suboptimal manipulation angle can lead to instrument clashing, awkward movements, and increased difficulty with tasks like suturing, potentially increasing the risk of error.
What if? If the manipulation angle is less than 45 degrees, the surgeon's hands will be too close, and the instruments will frequently collide internally (a phenomenon known as 'sword fighting'), making precise dissection nearly impossible.

How to Approach the Question

First, identify the core of the question. It asks for the specific name of the angle between the two main instruments in laparoscopy.
Recognize that this is a factual recall question related to surgical terminology and ergonomics.
Analyze the options provided. 'Manipulation,' 'azimuth,' and 'elevation' are all terms related to angles in physics and engineering, often applied to surgery.
Recall or deduce the meaning of each term in a surgical context. The 'manipulation' angle logically relates to how the instruments are manipulated relative to each other.
The term 'triangulation' is key. The angle between the two working instruments creates the base of the triangle needed for effective manipulation. This confirms that 'manipulation angle' is the correct term.

Concept Tested & Keywords

Concept Tested: Ergonomics and port placement in laparoscopic surgery
Stem keywords: laparoscopy, angle, left-hand working port, right-hand working port
Lead-in keywords: known as

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