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Lateralization

Lateralization

Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.

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Learning Modern Laryngeal Surgery in a Dissection Laboratory

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Left hand, right hand: Understanding laterality and its impact on surgery.

Sébastien Durand¹, Yves Harder¹, Agata Durdzinska Timoteo¹

¹Department of Hand Surgery, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland.

Hand Surgery & Rehabilitation

|September 12, 2025

Summary

Laterality, the preferential use of one body side, impacts human development and plastic-orthopedic hand surgery. Understanding laterality can improve surgical training and patient outcomes.

Keywords:

Dominant hand Handedness Laterality Left-handed Surgery Surgical performance

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Area of Science:

Neuroscience
Developmental Biology
Orthopedic Surgery

Background:

Laterality, or preferential use of one body side, is a fundamental trait influenced by neurodevelopmental, genetic, and environmental factors.
This characteristic is observed across species and plays a significant role in human function.

Purpose of the Study:

To explore the concept of laterality in humans.
To examine its implications in plastic-orthopedic hand surgery, from training to patient outcomes.
To discuss technological solutions for cognitive asymmetries related to handedness.

Main Methods:

Literature review on laterality.
Analysis of laterality's role in surgical training, intraoperative performance, and patient care.
Exploration of technological advancements like robotic surgery.

Main Results:

Laterality influences all stages of plastic-orthopedic hand surgery.
Robotic surgery presents potential solutions for cognitive asymmetries linked to handedness.
Considering laterality in surgical training may enhance outcomes and working conditions.

Conclusions:

Laterality is a critical factor in plastic-orthopedic hand surgery.
Technological aids can help mitigate handedness-related challenges.
Integrating laterality awareness into surgical education is essential for improved practice.