• Bernadette Nedelec, Marie-Andrée Couture, Valerie Calva, Chantal Poulin, Annick Chouinard, Danielle Shashoua, Nathalie Gauthier, José A Correa, Ana de Oliveira, Barbara Mazer, and Leo LaSalle.
• School of Physical and Occupational Therapy, McGill University, Montreal, Quebec, Canada; Centre de recherche du Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, Quebec, Canada; Hôpital de réadaptation Villa Medica, Montreal, Quebec, Canada. Electronic address: bernadette.nedelec@mcgill.ca.
• Burns. 2019 Feb 1; 45 (1): 128-139.

BackgroundOne objective of massage therapy applied to hypertrophic scar (HSc), is to improve the structural properties so skin possesses the strength and elasticity required for normal mobility. However, research supporting this effect is lacking. The objective of this study was to characterize the changes in scar elasticity, erythema, melanin, and thickness immediately after a massage therapy session and after a 12-week course of treatment compared to intra-individual matched control scars.MethodsWe conducted a prospective, randomized, single-blinded, pragmatic, controlled, clinical trial evaluating the impact of a 12-week course of massage therapy. Seventy burn survivors consented to participate and 60 completed the study. Two homogeneous, intra-individual scars were randomized to usual care control or massage therapy plus usual care. Massage, occupational or physical therapists provided massage treatment 3x/week for 12 weeks. Scar site characteristics were evaluated weekly immediately before and after massage treatment including elasticity (Cutometer), erythema and melanin (Mexameter), and thickness (high-frequency ultrasound). Analysis of covariance (ANCOVAs) were performed to test for immediate and long-term treatment effects. A mixed-model approach was used to account for the intra-individual scars.ResultsScar evaluation immediately before and after massage therapy at each time point revealed changes for all scar characteristics, but the group differences were predominantly present during the early weeks of treatment. The within group long-term analysis revealed a significant increase in elasticity, and a reduction in thickness, during the 12-week treatment period for both the control scar (CS) and massage scar (MS). The increase in elasticity reached significance at week 8 for the MS and week 10 for the CS and the reduction in thickness at week 5 for the CS and week 7 for the MS. There was no significant within group long-term differences for either erythema or melanin. There were group differences in erythema at week 8 and 11 where the CS was less erythematous than the MS.ConclusionsThe immediate impact of forces applied during massage therapy may lead patients and therapists to believe that there are long-term changes in elasticity, erythema, and pigmentation, however, once baseline measures, the control scar, and time were incorporated in the analysis there was no evidence of long-term benefit. Massage therapy applied with the objective of increasing scar elasticity or reducing erythema or thickness over the long-term should be reconsidered.Copyright © 2018 Elsevier Ltd and ISBI. All rights reserved.

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