Physical therapy
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Disorders of the facial neuromuscular system can result in marked disfigurement of the face and difficulties in activities of daily living such as eating, drinking, and communicating. No systematic means of measuring the disability associated with facial nerve disorders exists. The purpose of this investigation was to examine the reliability and construct validity of the Facial Disability Index (FDI), a disease-specific, self-report instrument for the assessment of disabilities of patients with facial nerve disorders. ⋯ The FDI subscales produce reliable measurements, with construct validity for measuring patient-focused focused disability of individuals with disorders of the facial motor system.