Wound Healing of Skin Incisions Produced by Ultrasonically Vibrating Knife, Scalpel, Electrosurgery, and Carbon Dioxide Laser

Abstract

An ultrasonically vibrating knife has been developed for producing surgical incisions with reduced hemorrhage. Tissue injury and wound healing of porcine cutaneous incisions produced by this instrument, conventional scalpel, electrosurgery, and CO2 laser were compared regarding clinical, histopathologic, and tensile strength differences. Scalpel incisions had the least tissue injury and fastest healing, but the ultrasonically vibrating knife produced less tissue injury and faster healing than electrosurgery or CO2 laser.

Japanese Practice Guidelines for Anal Disorders I. Hemorrhoids

“…Compared to conventional hemorrhoid surgery, there is less tissue damage, better hemostasis, less postoperative pain, shorter operating time, and early return to normal activity 124,125) . Wound healing time is longer than that of the conventional scalpel, but shorter than that of electrocautery devices 122,123) . Postoperative complications are actually comparable 124,125) , but the cost is approximately ten times as great 126) .…”

“…In addition, there are reports that the length of the hospital stay is shorter, and wound edema is significantly less; 119) however, some studies indicate that there is no significant difference in wound infection rates 121) . Nevertheless, wound healing does tend to take longer with a conventional scalpel 122,123) .…”

LigaSure in total thyroidectomy

“…1 However, the use of electrocoagulation to control bleeding carries a risk of damage to the surrounding structures because of the lateral heat dispersion. 2 Recently, several alternative methods of hemostasis, such as the harmonic scalpel and laser techniques, have been tested in thyroid surgery with encouraging results, [3][4][5][6] but few reports have been published on LigaSure in this fi eld.…”

Estudo experimental comparativo de métodos de diérese tecidual no tratamento endoscópico do divertículo faringo-esofágico

“…As lâminas coagulam os tecidos com pequena propagação lateral de energia 55,56,57,58 . O bisturi harmônico produz energia que permite dissecar o plano tecidual sem queimar através das camadas 55 .…”

“…Neste estudo, os resultados histopatológicos repetiram os mesmos achados da literatura 55,56,57,58 . Houve menor alteração do arcabouço estrutural dos tecidos no grupo U, que utilizou a forma de energia ultrassônica.…”