#Obsidian scalpel medical surgical skin#
Comparative study of wound healing in rat skin following incision with a novel picosecond infrared laser (PIRL) and different surgical modalities.The ophthalmology microscalpel versus standard scalpels and wound healing in a rat model.A blinded histologic review suggested that obsidian wounds contained fewer inflammatory cells and less granulation tissue at 7 days. At 42 days, all wounds were barely detectable, thus precluding scar width analysis. At 21 days, scar width was not different in the two groups. Scar width, however, was significantly less in the obsidian wounds at 7, 10, and 14 days (p < 0.005).
Tensile strength of the two wound types was not different at 7, 14, 21, and 42 days.
Each rat received two parallel 8-cm dorsal skin incisions, one with an obsidian scalpel and the other with a surgical steel scalpel (no. In order to determine if skin incisions made with obsidian were superior to those made with standard surgical steel, wound tensile strength, scar width, and histology were assessed in 40 adult male Sprague-Dawley rats. N2 - There are several anecdotal clinical articles claiming wound healing and scar superiority using obsidian (volcanic glass) scalpels. T1 - A comparison of obsidian and surgical steel scalpel wound healing in rats.
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