Derma roller vs CO2 laser resurfacing for acne scars?

In my office, we use the fractional co2 laser to improve scars that have a textural component. Raffy Karamanoukian Los Angeles

Acne scars can be a frustrating problem for both the surgeon and the patient. Different types of scarring will respond differently to therapy. I have found that the derma roller or Roll-Cit works well on acne scars. It punctures the skin multiple times with tiny needles. It is a very painful procedure and I usually do it in the operating room under anesthesia.
I have found that a single therapy is adequate and down time is about 6 days. Your face will look swollen, really swollen, and quite messy until it is healed. The technique works best on shallow acne scars rather than the deep ice pick scars. Ice pick scars will do better with punch excision. I have been using the Deep FX CO2 laser for acne scars lately and I like the results. We do it in the office. Healing takes about 5 days.
Once again, it works best on shallow scars rather than deep pits. One treatment is adequate as well. I wouldn't combine the two therapies at the same session. Both treatments last about a year, meaning that over time some of scarring will become visible again, and the results should not be considered permanent. With both treatments I have not had any issues with pigment change. I have used the ROLL CIT in patients of darker skin type and they have done well. I hope this helps.