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Digital modeling and three-dimensional (3D) printing techniques have been used to assist the resection of the laryngeal lesions and repair the remnant larynx in glottic cancer patients with anterior commissure involvement. To evaluate the feasibility of digital modeling and 3D printing of titanium mesh for thyroid cartilage reconstruction in partial laryngectomy, and compare the advantages and disadvantages with crico-hyoido-epiglottopexy (CHEP). Forty-four glottic cancer patients with anterior commissure involvement were randomly assigned into group A and group B. The digital modeling and 3 D printing were used for patients in group A, and patients in group B underwent the modified CHEP. In group A, 10 patients underwent tracheotomy and tracheal tube was removed after 2 weeks. All the patients were discharged within 10 d after surgery, and the majority of them had a satisfactory level of pronunciation. In group B, the majority of the patients were discharged 2 − 3 weeks after surgery with a moderate level of pronunciation. The proposed surgical method, employing digital modeling and 3D printing to facilitate resection of laryngeal lesions and reconstruction of residual larynx, exhibited to be beneficial for accurate reconstruction of thyroid cartilage and soft tissues.

Application of digital modeling and three-dimensional printing of titanium mesh for reconstruction of thyroid cartilage in partial laryngectomy