Self-Reported Trismus: prevalence, severity and impact on quality of life in oropharyngeal cancer survivorship: a cross-sectional survey report from a comprehensive cancer center.

Severity of trismus appears to negatively impact quality of life and associate with various adverse functional outcomes in long-term oropharyngeal cancer survivorship. Trismus remains associated with advanced disease stages, tumor sub-site (tonsil), and addition of chemotherapy. Further investigation is merited for the dose-effect relationship to the muscles of mastication.