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Related Experiment Video

Updated: Mar 11, 2026

An Experimental Human DIEP Flap Model to Investigate Preservation Strategies for Vascularized Composite Allografts and Free Flaps
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Pre-expanded Deep Inferior Epigastric Perforator Flap.

Sharon E Monsivais1, Nicholas D Webster1, Stacy Wong1

  • 1Division of Plastic Surgery, Baylor Scott & White Health, 2401 South 31st Street, Temple, TX 76508, USA.

Clinics in Plastic Surgery
|November 30, 2016
PubMed
Summary

Pre-expanding deep inferior epigastric perforator (DIEP) flaps improves vascularity and coverage area for large defects. However, this technique involves staged procedures and risks, requiring careful patient selection and planning for optimal outcomes.

Keywords:
DIEPDeep inferior epigastric perforator flapPre-expansionTissue expansion

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Area of Science:

  • Plastic Surgery
  • Reconstructive Surgery
  • Microsurgery

Background:

  • Deep inferior epigastric perforator (DIEP) flaps are versatile for reconstructing large defects in areas like the lower extremity, abdominal wall, and perineum.
  • Traditional DIEP flap use can be limited by the available tissue area and donor site morbidity.

Purpose of the Study:

  • To evaluate the benefits and drawbacks of pre-expanding DIEP flaps for reconstructive purposes.
  • To determine the impact of pre-expansion on flap vascularity, coverage area, and donor site morbidity.

Main Methods:

  • Review of pre-expansion techniques for DIEP flaps.
  • Analysis of outcomes including vascularity, coverage, donor site morbidity, and complications.
  • Assessment of patient selection criteria and surgical planning for pre-expanded DIEP flaps.

Main Results:

  • Pre-expansion can enhance flap vascularity and increase the potential coverage area.
  • This technique may decrease donor site morbidity compared to standard DIEP flaps.
  • Pre-expansion necessitates staged procedures, carries risks of extrusion and infection, and causes temporary contour deformities.

Conclusions:

  • Pre-expanded DIEP flaps offer a valuable option for covering extensive defects.
  • Successful application depends on meticulous patient selection and comprehensive surgical planning.
  • The benefits of improved vascularity and coverage must be weighed against the risks and extended treatment course associated with pre-expansion.