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Background To investigate the outcomes of using the residual thyroid cartilage for laryngeal function reconstruction in early glottic laryngeal carcinoma. Methods From March 2017 to June 2022, 21 patients with glottic carcinoma who underwent laryngeal function reconstruction were analyzed retrospectively. The operation was performed under general anesthesia. Reconstruction of ipsilateral hemilarynx defect by downward movement of ipsilateral residual thyroid cartilage plate. During the follow-up period, the laryngeal function and tumor recurrence were evaluated. Results otally 20 male patients and 1 female patient were enrolled in this study. Of the 20 initial primary tumors, there were 6 patients with T1N0M0 stage, 12 ones with T2N0M0 stage, 1 with T1N1M0 stage, 1 with T3N0M0 stage, and 1 with T2N1M0 stage. The patient with recurrent tumor was T3N1M0 stage. The follow-up time ranged from 9 to 63 months. All patients were healed by first intention after surgery. All patients without laryngeal stenosis were removed from tracheotomy tube. So far, all patients have good laryngeal function. One patient relapsed at the last follow-up. Conclusion It is safe to repair hemilarynx defect with residual thyroid cartilage plate on the affected side, and it is an important choice for laryngeal function reconstruction after vertical partial laryngectomy.

Objectives To investigate the prognosis and quality of life for primary malignant maxillary sinus tumors. Methods This was a retrospective analysis. 164 patients diagnosed with primary malignant maxillary sinus tumors between 2005 and 2018 were recruited. Patients were treated according to the pathological type and the lesion range. Prognostic differences of different pathological types, surgical resection methods, repair methods, treatment methods, and different local recurrence sites were analyzed. Survival analysis and prognostic factors analysis were performed. Results Overall survival (OS) rate was 74.7% at 3 years, 60.5% at 5 years, and 45.8% at 10 years. Disease-free survival (DFS) rate was 67.2% at 3 years, 45.6% at 5 years, and 30.8% at 10 years. There was significant difference in OS rate among different pathological types (χ2 = 14.18, P < 0.05). The order of 5-year OS rate was as follows: malignant transformation of inverted Papilloma (77.7%) > adenoid cystic carcinoma (74.1%) > squamous cell carcinoma (48.4%) > sarcoma (22.1%). The order of disease-free survival was as follows: total maxillary resection > subtotal maxillary resection > endoscopic nasal tumor resection ≥enlarged maxillary resection, the 5-year DFS rate were 68.6%, 53.5%, 46.2%, and 42.9%, respectively. The OS of postoperative radiotherapy was significantly better than that of preoperative radiotherapy (χ2 = 7.16, P < 0.05). There was significant difference in OS between recurrent and non-recurrent patients (χ2 = 68.57, P < 0.05). Conclusions The pathological type and the timing of radiotherapy are independent prognostic factors for primary malignant tumor of maxillary sinus. In addition, different local surgical resection methods are independent factors affecting the recurrence rate.