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Prophylactic Antibiotic-Loaded Cement, Absorbable and Non-Absorbable, for Implant-Based Breast Reconstruction.

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|October 7, 2025
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Summary
This summary is machine-generated.

Prophylactic antibiotic cement, both absorbable and non-absorbable, effectively prevents infections in breast reconstruction. Oral antibiotics can be safely omitted when using local antibiotic delivery systems like polymethylmethacrylate or calcium sulfate.

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Area of Science:

  • Plastic Surgery
  • Infectious Disease
  • Biomaterials

Background:

  • Periprosthetic infection is a significant complication following postmastectomy breast reconstruction, often leading to implant explantation.
  • High infection rates can deter patients from pursuing reconstruction, impacting their quality of life.

Purpose of the Study:

  • To evaluate the efficacy of absorbable and non-absorbable prophylactic antibiotic cement in reducing infection rates in implant-based breast reconstruction.
  • To compare the safety and effectiveness of non-absorbable polymethylmethacrylate (PMMA) versus absorbable calcium sulfate (CS) antibiotic-loaded materials.

Main Methods:

  • A multi-institutional retrospective review of 295 tissue expander (TE) reconstructions in 189 patients.
  • Patients received either vancomycin/tobramycin-loaded PMMA plates or gentamycin/vancomycin-loaded CS beads/discs.
  • Data collected included medical history, perioperative details, and complications, with a focus on infection rates.

Main Results:

  • Overall infection rate was 2.4% (7/295 breasts), with 2.0% occurring within 6 weeks post-operatively.
  • No significant difference in infection rates was observed between non-absorbable PMMA (4.3%) and absorbable CS (1.5%).
  • One tissue expander was lost due to infection; oral prophylactic antibiotics were not administered.

Conclusions:

  • Antibiotic-loaded cement, including both PMMA and CS, is effective in preventing infections during implant-based breast reconstruction.
  • Local antibiotic delivery via cement provides similar safety profiles for both non-absorbable and absorbable materials.
  • The use of local antibiotic delivery allows for the safe omission of oral prophylactic antibiotics.