Should I be concerned about the transcutaneous technique with previous filler in the area?

In my practice, I dissolve all lower eyelid fillers prior to surgery. In terms of technique for lower lid surgery, it has more to do with the surgeon than a specific surgical technique.

I usually recommend my patients dissolve the filler under their eyes and in their cheeks if they are having a lower lid blepharoplasty (that's more than a skin pinch) and or midface lift. The first reason is I usually do periorbital fat grafting with my lower blepharoplasty. The second is because whenever you are lifting tissue, like you would in a midface lift, you are moving tissue back to a normal position but also tailoring height and final placement to the current anatomy of your face. Fillers aren't stable or permanent so I wouldn't want them distorting my surgical judgement and potentially affecting your final outcome.

Most HA based fillers last about six months.
At one year it’s unlikely you still have filler in your face.
If you do, it probably is almost all gone.
I suggest you pick your provider and go with their recommendations.
Best,
Mats Hagstrom, MD