Carbon Dioxide Laser Treatment in Burn-related Scarring

The Modified Vancouver Scar Scale requires an assessor to rate the patient's scars in 4 domains, each assigning a score to the scar for different qualities (pliability, height, vascularity and pigmentation) from 0 to 4 in pliability and height; and 0 to 3 in vascularity and pigmentation, where 0 is a 'normal' score as close to normal skin as possible and a score of 3 or 4 would indicate a poor outcome, dissimilar to normal skin. The minimum total score is 0 (very good scar) and maximum score is 14 (very bad scar)

Patient element of the POSAS scale (Patient and Observer Scar Assessment Scale) version 2.0. The scale asks the patient to rate their scars in 6 domains, each assigning a score to the scar for different qualities (pain, itch, colour, stiffness, thickness irregularity and overall opinion) from 1 to 10, where 1 is a very good score and 10 is a very poor score. The minimum total score is 7 (very good scar) and maximum score is 70 (very bad scar)

3mm punch biopsies from treatment and control segments of scar looking at dermal architecture in terms of collagen fibre thickness and orientation