Once the spheres have aggregated, they are designed to orientate in a honeycomb formation with 4-10nm openings (Figure 3) that serve as capillary channels. This porous architecture of the polymer is essential for adequate moisture management, as it allows for vapor transpiration at a rate of 12 l/m2 per day. This ensures the capillary flow from the moist wound surface is distributed evenly through the dressing, which contributes to its 68% water content. Notably, this approximately 3/5 water composition is similar to the water makeup of human skin. Optimized moisture management is theorized to enhance epithelial migration, stimulate angiogenesis, retain growth factors, promote autolytic debridement, and maintain ideal voltage and oxygen gradients for wound healing. The risk of infection is not increased by the existence of these pores, as their small size does not allow for bacterial migration.1
CONCLUSION
This case demonstrates the effectiveness of a polymerized methacrylate powder dressing to promote timely wound healing of a nasal alar defect. This low maintenance, single-application, user-friendly dressing spared the patient the inconvenience and pain associated with more conventional primary and secondary dressings. The dressing was well tolerated and resulted in a 90% reduction in wound size.
Further studies are needed to investigate the utility of this promising technology.
Further studies are needed to investigate the utility of this promising technology.
DISCLOSURES
The authors have no conflicts of interest to declare.
REFERENCES
- Fitzgerald RH, Bharara M, Mills JL, Armstrong DG. Use of a Nanoflex powder dressing for wound management following debridement for necrotising fasciitis in the diabetic foot. Int Wound J. 2009;6(2):133–9.
AUTHOR CORRESPONDENCE
Matthew J. Lin MD matthew.lin@mountsinai.org
