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Related Experiment Videos

Air dissipation in saline breast implants.

Andres Schanzer1, Granger B Wong

  • 1Division of Plastic Surgery, University of California-Davis Medical Center, 2nd Floor, 2221 Stockton Boulevard, Sacramento, CA 95817, USA.

Plastic and Reconstructive Surgery
|June 5, 2002
PubMed
Summary
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Residual air in saline breast implants dissipates within approximately 30 days. This study confirms that audible air pockets in breast implants resolve naturally over time, alleviating patient concerns.

Area of Science:

  • Plastic Surgery
  • Biomaterials Science
  • Medical Device Engineering

Background:

  • Residual air in saline breast implants can lead to patient discomfort from sloshing sounds and sensations.
  • While small air amounts are clinically insignificant, larger, audible quantities require patient reassurance regarding implant gas permeability and air dissipation.

Purpose of the Study:

  • To investigate and quantify the time required for the dissipation of intentionally introduced air within saline breast implants.
  • To provide clinical data supporting the natural resolution of audible air in breast implants.

Main Methods:

  • Twelve McGhan style #68 saline breast implants (6 x 240 cc, 6 x 270 cc) were used.
  • Each implant received 5 cc of air after being filled with saline and overfilled by 30 cc.

Related Experiment Videos

  • Implants were submerged in 37°C saline at 20.4 cm depth to simulate physiological conditions.

    • Main Results:

    • In 240 cc implants (Group A), air dissipation averaged 35.3 days (variance = 4.13).
    • In 270 cc implants (Group B), air dissipation averaged 38.0 days (variance = 0).
    • The air bubble was completely absent in all tested implants within the study period.

    Conclusions:

    • Audible intraluminal air in saline breast implants is a transient issue.
    • Patients can be reassured that air will dissipate, typically resolving within approximately 30 days.
    • The study validates the gas-permeable nature of the implant shells and the natural diffusion process of air.