Focused versus radial extracorporeal shock wave therapy in post burn hypertrophic scar: A single blinded randomized controlled trial

Nancy Hassan Aboelnour, Najlaa Fathi Ewais, Hamada Ahmed Hamada

Nancy Hassan Aboelnour, Najlaa Fathi Ewais, Hamada Ahmed Hamada – Focused versus radial extracorporeal shock wave therapy in post burn hypertrophic scar: A single blinded randomized controlled trial. Fizjoterapia Polska 2019; 19(4); 150-155

DOI: https://doi.org/10.56984/8ZG1A3652

Abstract
Purpose. Hypertrophic scar (HTS) is one of the common post-burn complications that lead to functional and cosmetic impairments, so we pursued to examine efficacy of extracorporeal shock wave therapy (ESWT) on HTS in expression of improving scar thickness and appearance. Materials and Methods. 60 patients with post burn HTS were recruited in this trial and divided randomly into 3 equal groups. Group A: received focus ESWT (100 shock waves per cm2, 0.037 mJ/mm2, 4 Hz, 2 times/week for six weeks) plus traditional topical medication (MEBO Scaro cream). Group B: received radial ESWT (500 shock waves per cm2, 0.13 mJ/mm2, 6 Hz, 2 times/week for six weeks) plus MEBO Scaro cream. Group: received only MEBO Scaro cream. Ultrasonography was utilized for scar thickness measurement and scar characteristics assessment was done by Modified Vancouver Scar Scale (MVSS). All measures were gathered before the start of the study, and after termination of the trial (after 6 weeks). Results. Both focus and radial ESWT showed significant advance in scar thickness and MVSS post treatment (p > 0.001), without statistical differences between them (p > 0.05), while group C showed only a significant diminution in MVSS post treatment (p > 0.001), without any change in scar thickness. Conclusion. Higher statistical results were achieved with both focus and radial ESWT without any side effects, confirming the safety and efficiency of ESWT in HTS management.

Key words:
hypertrophic scar, Extracorporeal Shock Wave Therapy (ESWT), Modified Vancouver Scar Scale (MVSS), ultrasonography

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