Chance of healing

Venous leg ulcers

About 20-30% of venous leg ulcers are unresponsive to standard treatment with compression therapy (Barwell et al, 2004; Margolis et al, 2005), and in some case more than 20% of venous leg ulcers have been reported as failing to heal after 70 weeks, despite the use of compression therapy (Rippon et al, 2007).

Diabetic foot ulcers

Reported healing rates for these types of wounds vary across studies. In one diabetic foot ulcer study in which patients were treated with standard care, a 79% healing rate was attained at 25 weeks (Piaggesi et al, 1998). In contrast, Margolis et al (2005) have recorded healing rates in diabetic foot ulcers to be as low as 24% at 12 weeks and 31% at 20 weeks.