Burn scars remain a serious physical and psychological problem for the affected people. Clinical studies as well as basic scientific research have shown that medical needling can significantly increase the quality of burn scars with comparatively low risk and stress for the patient with regards to skin elasticity, moisture, erythema and transepidermal water loss. However, medical needling has no influence on repigmentation of large hypopigmented scars. The goal of this study is to evaluate whether two established methods - needling (for improvement of scar quality) and non-cultured autologous skin cell suspension (for repigmentation) - can be successfully combined. Twenty subjects with mean age of 33 years (6-60 years) with scars from deep second and third degree burns have been treated. The average treated surface area was 94cm (15-250cm) and was focused on prominent areas such as the face, neck, chest and arm. Percutaneous collagen induction or "medical needling" was performed using a roller covered with 3mm long needles. The roller is vertically, horizontally and diagonally rolled over the scar, inducing microtrauma. Then, non-cultured autologous skin cell suspension (NCASCS) was produced and applied using the ReNovaCell Autologous Cell Harvesting Device (Avita Medical), according to the manufacturer's instructions. The patients were followed 12 months postoperatively. Pigmentation changes were measured objectively, as well as with patient and observer ratings. Patient satisfaction/preference was also obtained. Taken together, the pigmentation ratings and objective measures indicate individual improvement in 17 of the study participants. The melanin increases seen 12 months after NCASCS treatment are statistically significant. Medical needling in combination with NCASCS shows promise for repigmentation of burn cars.

BackgroundBurn scars frequently tend to have pathological discolorations, which is manifested in the development of persistent erythema. Affected people suffer from psychological and physiological issues when they are restricted or rejected in their daily life. In this context, medical needling seems to be an efficient therapy for erythematous scars with a relatively low-risk rate of postoperative complications. Study research has already shown significant improvements in the scar quality with reference to the parameters “moisture and transepidermal water loss.” Clinical data is up-to-date and provides an innovative therapy outcome of scar treatment with medical needling.ObjectiveThe aim of our study was to examine the influence of medical needling on the pathological and persistent erythema of hypertrophic burn scars. By means of reliable measurement methods, we were able to prove positive and sustainable outcomes for normal and healthy skin. The patient cohort included 20 patients with an average age of 34.63 years. Our examinations involved scars that were at least two years old and had healed by secondary intent. Every scar showed the pathological values of persistent erythema according to the participation requirements.MethodsFor the practical implementation of medical needling or percutaneous collagen induction (PCI), we used a roller covered with needles of 3 mm length. The needling device is rolled over the scar alternatively in a vertical, horizontal, and diagonal orientation. Multiple micro-wounds at a close distance cause intradermal bleeding, which evokes modified skin regeneration provoked by the effects of medical needling. Every patient has been followed up for 12 months postoperatively. Further on, valid results have been evaluated objectively as well as subjectively by the patient and observer.ResultsOur study has shown that persistent erythema of hypertrophic scars can be considered as an indication of PCI. The needling procedure influences vascularization by stimulating angiogenesis in the post-needling wound healing cascade. As the method is based on percutaneous collagen induction, the synthesis of collagen improves the vital thickness of the epidermis, which is directly associated with less transparency. Examined scars showed a significant reduction of erythema and were less reddened after treatment. Based on the outcomes of objective measurements, medical needling achieves a normalization of the skin color and an adjustment to healthy skin after repetitive treatments.ConclusionMedical needling seems to be a suitable therapy approach for treating erythematous, hypertrophic burn scars.

Background: Burn scars remain a serious psychological and physiological problem for affected people. Clinical studies and scientific research have already shown that medical needling improves the scar quality in terms of skin elasticity and erythema. At the same time, patients are confronted with a low-risk therapy and face comparatively less postoperative complications.Objective: The goal of our study was to examine the influence of medical needling on the skin moisture and transepidermal water loss (TEWL) of hypertrophic dry scars. Therefore, 20 patients, of an average age of 34.63 years, with deep second- and third-degree burn scars have been treated.Methods: Medical needling is performed using a roller covered with needles of 3-mm length. The needling device is rolled over the scar in three directions: vertically, horizontally, and diagonally in order to create as many puncture channels as possible. The puncturing leads to multiple micro-wounds and intradermal bleeding, which evokes the post-needling regeneration cascade. The patients were followed up for 12 months postoperatively. The results have been evaluated by means of objective as well as subjective measurement methods.Results: The objective measures show that medical needling influences epidermal thickness and improves the epidermal barrier function at a molecular level. Outcomes are marked by a measurable increase in skin moisture and a reduction in TEWL.Conclusion: Medical needling seems to be a promising approach for the treatment of mature hypertrophic burn scars with a focus on skin moisture and TEWL.

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Burn scars remain a serious physical and psychological problem for the affected people. Both clinical studies and basic scientific research have shown that medical needling can significantly increase the quality of burn scars with comparatively low risk and stress for the patient related to skin elasticity, moisture, erythema and transepidermal water loss. However, medical needling does not influence repigmentation of large hypopigmented scars. The goal is to evaluate whether both established methods - needling (improvement of scar quality) and non-cultured autologous skin cell suspension (NCASCS) "ReNovaCell" (repigmentation) - can be combined. So far, 20 patients with mean age of 33 years (6-60 years) with deep second and third degree burn scars have been treated. The average treated tissue surface was 94 cm² (15-250 cm²) and was focused on areas like face, neck, chest and arm. Medical needling is performed using a roller covered with 3 mm long needles. The roller is vertically, horizontally and diagonally rolled over the scar, inducing microtrauma. Then, NCASCS is applied, according to the known protocol. The patients have been followed up for 15 months postoperatively. The scars were subdivided into "UV-exposed" and "UV-protected" to discover whether the improved repigmentation is due to transfer of melanocytes or to reactivation of existing melanocytes after exposure to UV or the sun. The objective measures show improved pigmentation in both UV-exposed and UV-protected groups. Melanin increases 1 year after NCASCS treatment in the UV-protected group are statistically significant. Medical needling in combination with NCASCS shows promise for repigmentation of burn scars, even in sun protected scars.