Objective vs Patient-Rated Results in the 2026 Subcision Trial: What the Trial Means for People With Rolling Acne Scars

In the 2026 split-face trial, subcision — a procedure that releases fibrous bands tethering depressed scars — improved atrophic acne scars with and without suction. Doctors and patients both rated the suction side higher, so for rolling scars the added step looked and felt better. The comparison tested subcision alone against subcision with suction in the same patients.

According to the U.S. National Library of Medicine, the randomized trial appeared in Dermatologic Surgery 52(10):989-993 PubMed record. Rolling scars are central here because release of tethering bands fits their depressed, wave-like shape.

Medical information disclaimer: This article is for general educational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult a physician or other qualified health professional about symptoms, medications, tests, or treatment decisions.

How did the trial test suction?
What did doctors and patients prefer?
Why did subjective scores differ from scar counts?
Does the suction benefit last?
What should people with rolling scars ask?

How did the trial test suction?

Both cheeks received subcision, with suction added on one side only. That split-face design lets each person serve as their own comparison. Either approach produced measurable benefit from baseline, according to Dermatologic Surgery via Ovid journal page.

Blinded doctors scored improvement higher on the suction-treated side. Patients scored their own improvement higher on the suction side too. The two ratings pointed in the same direction.

What did doctors and patients prefer?

Physician-rated Acne Scar Improvement Grading Scale scores were significantly higher with added suction (p=.002). Patient-rated scores were also significantly higher with suction (p=.026), as reported by the U.S. National Library of Medicine PubMed record.

In practical terms, the suction side showed smoother contour, softer shadows, and less obvious tethering in daily light. Makeup sat more evenly and scars drew less attention in photos. That visible and tactile change is what both groups picked up.

Why did subjective scores differ from scar counts?

The trial authors concluded subjective assessments favored suction-assisted subcision. They suggested clinically perceptible benefits were not fully captured by objective scar-counting methods, according to the U.S. National Library of Medicine.

Counts track number and depth, while people judge texture, light reflection, and movement. A cheek can look less scarred when edges lift even if the scar tally stays similar. That gap explains why rating scales moved more than strict counts.

Does the suction benefit last?

Related split-face rater-blinded data covering 28 treatment areas and 154 treatments found no dermatologist-score difference between arms at 1 and 4 months. Patients in that earlier dataset reported temporary incremental benefit from suction, according to Research Square preprint record.

The added suction benefit was therefore not a lasting objective difference. People seeking only long-term scar reduction may reasonably choose subcision alone to avoid extra suction care. Short-term smoothness and longer-term reduction are separate goals.

What should people with rolling scars ask?

People with rolling atrophic scars are most affected because subcision releases the fibrous bands holding down depressed scars. The method is reported as especially effective for the rolling subtype, according to the Journal of Cosmetic Dermatology clinical trial summary via ResearchGate trial summary.

Ask whether your scars are mainly rolling, mixed boxcar, or icepick, since tethered rolling scars fit subcision best. Then clarify the plan for suction: Bring front and angled photos in the same light to make that review concrete.

which side or area would receive suction and for how long
what extra home care, visits, swelling, or bruising suction adds
how improvement will be judged — photos, doctor grades, and your own rating
when to review results and decide about further treatment