PRP and its benefit as an adjunctive therapy with subcision and microneedling in atrophic scars: a comparative study

Scarring is a biological process of wound repair which leads to a difference in the normal structure and function of the skin and manifests as a depressed or raised area. Treatment of scars is challenging. A number of therapeutic approaches like surgical techniques and non-surgical techniques are performed to improve scarring.

The aim of this study was to compare the outcome of subcision followed by microneedling versus subcision followed by microneedling and topical platelet-rich plasma (PRP) in atrophic scars.

A comparative prospective study was conducted at a tertiary care hospital in North India to compare the efficacy of subcision followed by microneedling versus subcision followed by microneedling and topical PRP. A total of 40 cases were taken and were randomly divided into two groups, A and B of 20 patients in each group. Topical PRP was applied as an additional therapy in Group B in the same sitting. Minimum three sittings were done in each patient at an interval of 4 weeks and results were assessed after 1 month of the third session. The statistical software used is Microsoft Excel and SPSS software program, version 24.0 for analysis of data and Microsoft Word to generate graphs and tables.

Improvement in scar grading was more in Group B as compared to Group A with statistically significant difference (P = 0.032). There was an improvement in scar grading from grade 4 scar to grade 2 in 15% and 30% patients of Groups A and B, respectively, with improvement in skin texture and pigmentation more in Group B.

PRP proved to add to the improvement of grade of atrophic scars when combined with subcision and microneedling.