The application of a simple and efficient negative suction system in two-staged microtia reconstruction

Area of Science:

• Plastic Surgery
• Regenerative Medicine
• Biomedical Engineering

Background:

• Microtia reconstruction demands precise auricular contouring.
• Effective postoperative exudate drainage is crucial for cartilage framework adhesion.
• Current methods require improvement for better patient outcomes.

Purpose of the Study:

• To introduce and evaluate a simplified negative pressure suction system for autogenous rib cartilage microtia reconstruction.
• To compare the efficacy of a dressing-free negative pressure suction protocol versus conventional full dressing coverage.

Main Methods:

• Retrospective analysis of 377 patients undergoing microtia reconstruction (Jan 2021 - Aug 2025).
• Patients were divided into an experimental group (dressing-free negative pressure suction) and a control group (conventional full dressing with negative pressure suction).
• Clinical and postoperative data were analyzed to compare complication rates and patient satisfaction.

Main Results:

• The experimental group showed a significantly lower complication rate (4.73%) compared to the control group (10.70%, P < 0.05).
• Patient satisfaction was markedly higher in the experimental group (96.32%) versus the control group (82.89%, P < 0.05).

Conclusions:

• The dressing-free negative pressure suction protocol is superior to traditional full dressing coverage in microtia reconstruction.
• This simplified approach reduces postoperative complications and enhances patient satisfaction.
• The system facilitates controlled negative pressure for improved cartilage framework and skin adhesion.