Surgical treatment for glottic carcinoma originated from posterior commissure

Objective To explore the surgical method and prognosis of glottic carcinoma originated from the posterior commissure.Methods Clinical data of 8 patients with glottic carcinoma originated from posterior commissure was analyzed retrospectively.Of them,3 cases at TisN0M0 received surgical treatment under self-retaining laryngoscope,while the others(3 cases at T1N0M0 and 2 at T2N0M0) were treated with partial laryngectomy combined with ipsilateral neck dissection,and the laryngeal defects were reconstructed by a pedical sternohyoid muscle flap.Results All the cases had been followed up more than 5 yesrs postoperatively.All of them got extubated successfully with preferable phonatory and deglutitory function.Recurrence occurred in 3 cases and 1 died.Conclusion The recurrence rate and cervical lymphatic metastasis rate of glottic carcinoma originated from posterior commissure are significantly higher than those of the general type.Ipsilateral neck dissection is recommended except for tumor in situ and cutting edge should be over 5 mm away form the tumor.Pedical sternohyoid muscle flap is credible for the laryngeal defects.