The submental island flap for the treatment of intraoral tumor-related defects: No effect on recurrence rates

• The submental island flap is an effective option of oral defect treatment.
• It is valuable for patients with comorbidities due to reduced operation times.
• It is an alternative to pliable free flap reconstructions (RFF, ALT, perforators).
• Its application does not affect the oncological prognosis of oral cancer patients.

SummaryObjectivesThe submental island flap has become increasingly popular in the treatment of intraoral defects following tumor ablation. However, there was concern that the elevation of the pedicled flap might interfere with the efficiency of level I-lymph node dissection and decrease the oncologic prognosis of the patients.Materials and methodsIn a prospective clinical study over five years the outcome of 45 consecutive patients with intraoral cancer of various T-stages treated with submental island flaps was evaluated and compared to 45 patients with a T-status analogous oral cancer treated with free radial forearm flaps.ResultsAll submental island flaps beside three were successful (93.3%). The obtained functional results were pleasing and the donor morbidity low. Patients treated with submental island flaps exhibited no enhanced risk of local tumor recurrence or lymph node metastasis (p < 0.86). In contrast, the operation time, time of intensive care and hospitalization were reduced (p < 0.001).DiscussionWe conclude that the submental island flap is an effective and predictable option of small and medium-sized oral defect treatment. It is a valuable alternative to free flap soft tissue reconstructions such as radial forearm or perforator flaps. It seems particularly beneficial to patients with relevant comorbidities as often present in the oral cancer population. The application of the submental island flap does not reduce the oncological prognosis of oral cancer patients.