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Plastic Deformations of Members with a Single Plane of Symmetry

Plastic Deformations of Members with a Single Plane of Symmetry

When a structural member undergoes plastic deformation due to bending, it is crucial to understand the position of the neutral axis and the stress distribution. This member, characterized by a single plane of symmetry, exhibits a uniform stress distribution, with negative stress above the neutral axis and positive stress below. Notably, the neutral axis does not align with the centroid of the cross-section. This misalignment is typical in cases where the cross-section is not rectangular or...

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Related Experiment Video

Updated: May 30, 2026

Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling

Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling

Published on: January 5, 2015

Z-plasty made simple.

Sumaira Z Aasi¹

¹Section of Dermatologic Surgery and Cutaneous Oncology, Department of Dermatology, Yale University School of Medicine, New Haven, CT 06510, USA.

Dermatology Research and Practice

|July 27, 2011

Summary

This summary is machine-generated.

Z-plasty is a versatile surgical technique for scar revision and correcting free margin distortion. This method effectively lengthens scars, improves alignment with skin tension lines, and enhances scar camouflage.

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Last Updated: May 30, 2026

Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling

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Lateral-PLIF for Lumbar Spinal Arthrodesis: A Detailed Step-By-Step Surgical Technique

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Published on: January 23, 2026

Area of Science:

Plastic Surgery
Dermatology
Wound Healing

Background:

Scars can cause functional impairment and aesthetic concerns.
Contracted scars and free margin distortion require effective revision techniques.
Z-plasty is a well-established surgical procedure for scar management.

Purpose of the Study:

To review the fundamental technique of Z-plasty.
To illustrate the application of Z-plasty in scar revision.
To demonstrate the correction of free margin distortion using Z-plasty.

Main Methods:

Detailed description of the basic Z-plasty surgical technique.
Presentation of clinical case examples.
Analysis of scar revision outcomes.

Main Results:

Z-plasty effectively lengthens contracted scars.
The technique allows for redirection of scars along relaxed skin tension lines.
Z-plasty improves scar camouflage by interrupting scar lines.

Conclusions:

Z-plasty is a reliable and critical technique for scar revision.
It offers significant benefits in correcting free margin distortion.
The versatility of Z-plasty makes it valuable in reconstructive surgery.