Negative pressure therapy is used in
Bed sore in sacrum after debridment
After amputation
Chronic osteomyelitis wound
After split skin graft
Vaccum assisted closure Known as negative pressure wound closure Applying intermittent negative pressure of approximately - 125mmHg appears to hasten Debridement and the formation of granulation tissue in chronic wounds and ulcers A foam dressing is cut to size to fit the wound A perforated wound drain is placed over the foam and the wound is sealed with a transparent adhesive film. A vaccum is then applied to the drain. Negative pressure may act by decreasing oedema, by removing interstitial fluid and by increasing blood flow As a result bacterial counts decrease and cell proliferation increases thereby creating a suitable bed for graft or flap cover. Ref: Bailey and love 27th edition Pg no :30
Trauma