I must say here when I started this topic I was using a very low LEED because I did no intumescence at all. I had no problem or complication, but gradually I increased my LEED to 60-80 J/cm and the usage of intumescence.
for the past 2 years we've been using double ring 1470nm radial fiber with 40-60J/cm2 with intumescence. I've seen no recurrence but as we treat the distal segment of the leg, together with ligation of perforant veins, we've seen some transitory sensitive alteration (2-6 months)