Effect of Matrix Rhythm Therapy (MaRhyThe) on Postparotidectomy Facial Palsy

Abstract Facial nerve paralysis following parotidectomy is a complication associated with significant morbidity and decreased quality of life. This case report explores the effect of Matrix Rhythm Therapy (MaRhyThe) as an adjunctive treatment for postparotidectomy facial palsy, a condition often managed with conventional physiotherapy approaches. A 38-year-old male with left-sided facial palsy secondary to Warthin’s tumor underwent MaRhyThe sessions once a week for 3 weeks in addition to conventional physiotherapy exercises. Pre- and posttreatment assessments included House–Brackmann Scale grading, strength-duration curve analysis, and facial muscle manual muscle testing. Clinical findings revealed improvements in facial symmetry, muscle strength, and function following MaRhyThe treatment. The patient experienced enhanced eye closure, smiling, and pouting movements, as evidenced by posttreatment images. Moreover, the International Classification of Functioning, Disability, and Health profiles demonstrated positive changes in body function and structure, as well as activities and participation. While conventional physiotherapy has demonstrated efficacy in facial palsy management, MaRhyThe presents a novel approach with promising outcomes in this context.