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An Unna’s boot [1] (also Unna boot) is a special gauze (usually 4 inches wide and 10 yards long) bandage, which can be used for the treatment of venous stasis ulcers and other venous insufficiencies of the leg. It can also be used as a supportive bandage for sprains and strains of the foot, ankle and lower leg.
[1] Venous ulcers are wounds that are thought to occur due to improper functioning of venous valves, usually of the legs (hence leg ulcers). [2]: 846 They are an important cause of chronic wounds, affecting 1% of the population. [3] Venous ulcers develop mostly along the medial distal leg, and can be painful with negative effects on quality of ...
The dressings used for the technique include foam dressings, sealed with an occlusive dressing intended to contain the vacuum at the wound site. [1] Where NPWT devices allow delivery of fluids, such as saline or antibiotics to irrigate the wound, intermittent removal of used fluid supports the cleaning and drainage of the wound bed. [6]
The dressing should be changed and the wound irrigated with normal saline at least twice each day. [4] In addition, it is recommended to administer an antibiotic active against staphylococci and streptococci, preferably vancomycin when there is a risk of methicillin-resistant Staphylococcus aureus . [ 4 ]
Hydrocolloid dressings are used to treat uninfected wounds. [6] Dressings may be used, under medical supervision, even where aerobic infection is present; the infection should be treated appropriately. [citation needed] The dressing is applied to a cleaned wound. Hydrocolloid patches are sometimes used on the face for acne.
Debridement and drainage of wound fluid are an especially important part of the treatment for diabetic ulcers, which may create the need for amputation if infection gets out of control. Mechanical removal of bacteria and devitalized tissue is also the idea behind wound irrigation, which is accomplished using pulsed lavage. [14]