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Development of a Benchtop Model for Evaluating the Compatibility of Wound Dressing Materials with Negative Pressure Wound Therapy Systems
Published on: May 2, 2025
127
Statistical Study on Negative Pressure Strength during Skin Graft Fixation.
Tomoya Taniguchi1, Atsushi Sakurai1, Hiroshi Kitagawa2
1Department of Plastic Surgery, Hyogo Prefectural Kakogawa Medical Center, Hyogo, Japan.
Journal of Plastic and Reconstructive Surgery
|May 19, 2025
Summary
Negative pressure wound therapy (NPWT) aids skin graft fixation. For full-thickness skin grafts (FTSG), pressures below 100 mmHg yield better engraftment rates than higher pressures.
Area of Science:
- Wound Healing
- Plastic Surgery
- Biomedical Engineering
Background:
- Negative pressure wound therapy (NPWT) is increasingly utilized for skin graft fixation.
- Optimal negative pressure settings for maximizing skin graft engraftment remain unclear.
Purpose of the Study:
- To retrospectively investigate the relationship between negative pressure strength and skin graft engraftment rates.
- To determine optimal NPWT parameters for different types of skin grafts.
Main Methods:
- 130 patients undergoing skin graft fixation with NPWT were analyzed.
- Grafts were categorized as full-thickness (FTSG) or split-thickness (STSG).
- Patients were grouped by negative pressure levels: high (≥100 mmHg), moderate (≥75, <100 mmHg), and low (<75 mmHg).
Main Results:
- For FTSG, engraftment rates were 40.0% (high), 82.4% (moderate), and 100% (low).
- For STSG, engraftment rates were 85.9% (high), 70.8% (moderate), and 87.5% (low).
- FTSG engraftment was significantly lower at pressures ≥100 mmHg compared to <100 mmHg.
Conclusions:
- Negative pressure strength below 100 mmHg is recommended for FTSG to optimize engraftment.
- For STSG, negative pressure settings should prioritize graft fixation.
- Further research may refine NPWT protocols for diverse skin grafting scenarios.
