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Inframammary Fold Reconstruction: A Biomechanical Analysis.

Christian Eichler1, Julia Schell1, Jens Uener1

  • 1Brustzentrum, Municipal Hospital Holweide, Cologne, Germany; Department of Gynecology and Obstetrics, Municipal Hospital Holweide, Cologne, Germany; Department of Radiology, Municipal Hospital Holweide, Cologne, Germany; Department of Anatomy, RWTH Aachen University, Aachen, Germany; Department of Anatomy II, University of Cologne, Cologne, Germany; and Department of Gynecology and Obstetrics, University of Cologne, Cologne, Germany.

Plastic and Reconstructive Surgery. Global Open
|June 4, 2016
PubMed
Summary

An intrarib anchor system offers superior biomechanical stability for inframammary fold reconstruction compared to traditional suture methods. This anchor system demonstrates significantly higher ultimate load, fixation stiffness, and displacement tolerance.

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Area of Science:

  • Orthopedic surgery
  • Biomechanical engineering
  • Reconstructive surgery

Background:

  • Inframammary fold reconstruction lacks extensive literature and biomechanical comparison of methods.
  • Current reconstructive techniques for the inframammary fold have not been biomechanically analyzed.
  • This study introduces a novel comparison between suture reconstruction and an intrarib anchor system.

Purpose of the Study:

  • To biomechanically compare the gold-standard suture reconstruction with an intrarib anchor system for inframammary fold reconstruction.
  • To evaluate fixation strength, stiffness, and load displacement characteristics of two reconstructive methods.
  • To determine the superior fixation method for inframammary fold reconstruction.

Main Methods:

  • Mechanical testing was performed on three groups: Sawbone blocks, embalmed cadavers, and regular cadavers (N=57).
  • Transient mechanical analysis was conducted using an Instron 5565 test frame at a rate of 5 N/s.
  • Comparison focused on ultimate load, stiffness, and load at 2-mm displacement.

Main Results:

  • The anchor system demonstrated a 9.8-fold greater ultimate load than sutures in regular cadavers (P < 0.0001).
  • In embalmed cadavers, the anchor system showed a 1.7-fold greater ultimate load (P = 0.038).
  • Statistically significant improvements were observed for the anchor system in terms of stiffness and load at 2-mm displacement.

Conclusions:

  • The intrarib anchor system is biomechanically superior to the gold-standard suture method for inframammary fold reconstruction.
  • The anchor system exhibits enhanced ultimate load, fixation stiffness, and displacement at failure.
  • Superior stability suggests the anchor system is a viable option for inframammary fold reconstruction.