Long-term donor site morbidity after radial forearm flap elevation for tongue reconstruction: Prospective observational study.

[BACKGROUND] To assess long-term donor site morbidity after radial forearm free (RFF) flap harvesting.

[METHODS] Enrolled patients were asked to complete the Disability of the Arm, Shoulder, and Hand (DASH) questionnaire and undergo wrist motion and hand strength examinations at different time points. The data were prospectively collected and retrospectively analyzed.

[RESULTS] The postoperative DASH score did not return to normal until 24 months after the operation. The mean postoperative wrist motion degree of flexion was significantly decreased compared to the preoperative level and returned to normal at 12 months after the operation. Similar trends were noted regarding extension, radial abduction, and ulnar abduction. The mean postoperative grip strength was significantly decreased compared to the preoperative level and remained dysfunctional at 24 months after the operation. A similar trend was also noted with regard to tip pinch and key pinch.

[CONCLUSION] The long-term negative effect on hand strength is sustained.