Figure 1.

The donor site was prepared using povidone‐iodine and a local anaesthesia was achieved using 1% lidocaine. Full‐thickness explants, without hypodermal fat, were taken from the donor site using a 6‐mm punch biopsy and the site was immediately closed primarily with a simple suture. The graft was deposited in a Petri dish containing physiological saline. The receiving site (ulcer bed) was prepared with soft curettage, and then full‐thickness circular fragments of ulcer were removed by using a 5‐mm punch biopsy. The chambers were positioned at a distance of 1–2 cm from each other and from the margins. A non‐adhesive dressing kept the graft in place with a suitable bandage. All patients showed a complete wound closure for a 6‐month follow‐up period. The mean time of closure was 68·6 days (9·8 weeks), that is a speed of reepithelialisation of 4·1 cm²/week.