When you burn a leaf it shrivels up, same with our skin, this patient suffered third degree burns all around his chest causing it to contract, they had to preform this procedure to reduce the pressure on the organs and rib cage. Without treatment it can lead to losing feeling to the area due to the burns severity, third degree burns burn through your dermal and adipose tissue which has a possible chance lead to your nerves.
I know it is done with burns but I don't know why. Could you explain?
the skin tightens after being burned so to prevent the chest and vital organs from being compressed incisions are made to relieve that pressure
This is escharotomy which is used to treat circumferential burns because dermis and epidermisis fully destroyed along with nerves