Background: Hydrosurgegy for debridement is an effective methode in preparing the wound bed. Versa jet system is a new device which combines lavage and sharp debridement, it has more advantages in debridment than traditional methods. Subjects and Methods: from june,2013 to June 2014, the authors treated 50 patients with chronic wound. the authors have used the hydrosurgery system for wound debridement on those patients. Results: the authors done hydrodebridment on 50 patients in which almost are diabeitc foot ulcers and pressure sore
60 percent chronic wound has sinus tracts, fistulas, tunnels. The authors noted that the rate of clean wound after the 1st hydrosurgery is very high: 62 percent, and the state of wound infection significantly reduce from 76 percent positve bacterial culture pre-op to 22 percent post-op. And 100 percent monitored patients have good resultat of wound. Conclusion: The Versa jet is safe and useful in debridement on chronic wound.