29/01/2026
Fractional ablative lasers (AFL), such as the CO2 or Erbium cold fibre, does more than just resurface scars — it fundamentally changes how tension affects scar tissue through two distinct mechanisms.
First, the laser vaporises hundreds of small tissue columns throughout the scar, creating an immediate mechanical release of tension.
Many patients notice this effect straight away after treatment.
The scar simply feels different, less tight and constricted.
This early change is often temporary, as some swelling and tissue remodelling occur in the days that follow.
Second, these micro injuries trigger a remodelling process that changes the type of collagen in the scar tissue, resulting in an overall decrease in tension as healing progresses.
This isn't just surface treatment—it's restructuring the scar from within.
Research shows AFL-CO2 can decrease excessive blood vessel formation in immature scars whilst increasing blood supply in mature scars that have become poorly perfused.
This dual effect on vascularisation, combined with improvements in pliability and thickness, enhances overall scar quality.
These changes in the scar tissue create optimal conditions for subsequent treatments or surgery.
Better-perfused, more pliable tissue with reduced tension supports improved wound healing, better surgical outcomes, and reduced complications in the surgical field.
Whilst surgery remains very effective for restoring range of motion, ablative fractional resurfacing addresses other crucial aspects of hypertrophic burn scars including symptoms, thickness, function, and quality of life—often serving as valuable preparation before surgical intervention or as treatment in its own right.