<qa>  What is the maximum period of 12 weeks?Patients will be followed over a maximal period of 12 weeks. At D0 inclusion, W2, W4, W6, W8, W10 and W12 a detailed description of ulcer aspect will be done. Applied dressing will be removed according to a standardized procedure. Wound area tracing and photography of all ulcers will be performed. Off-loading systems adherence will be checked. 