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Plastic Behavior

Plastic Behavior

A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...

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Factors Affecting Lower-pole Stretch after Breast Augmentation.

Frederick G Weniger¹, Carlos E Barrero², Allan A Weidman³

¹Private Practice, Bluffton, S.C.

Plastic and Reconstructive Surgery. Global Open

|November 8, 2021

Summary

This summary is machine-generated.

Ultrahigh-profile breast implants significantly increase lower-pole stretch after augmentation. Dual-plane dissection also impacts settling, while patient age and implant size have minimal effect. This research aids surgical planning for optimal breast augmentation outcomes.

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Area of Science:

Plastic Surgery
Biomechanical Engineering

Background:

Breast augmentation planning often considers soft-tissue characteristics.
Objective outcome measures for lower-pole settling post-augmentation are limited.

Purpose of the Study:

To investigate the impact of dual-plane dissection, patient age, and implant characteristics on lower-pole breast implant settling.
To provide objective data on factors influencing postoperative implant-soft tissue dynamics.

Main Methods:

Prospective data collection from 227 primary breast augmentation patients over 8 years.
Nipple-to-inframammary fold distance measured postoperatively.
Correlation analysis with dual-plane dissection type, patient age, implant fill material, size, and profile.

Main Results:

Increasing dual-plane dissection showed a trend towards greater lower-pole stretch.
Ultrahigh-profile implants significantly increased lower-pole stretch.
Patient age, implant fill material, and size did not significantly affect settling.

Conclusions:

Ultrahigh-profile implants are associated with significant postoperative lower-pole stretch.
Dual-plane dissection type influences lower-pole stretch.
Patient age, implant material, and size are less critical factors for settling within a 6-month period.