Modification of supraglottic partial laryngectomy to preserve hyoid bone: a cadaveric study.

Background: Supraglottic partial laryngectomy (SGPL) preserving the hyoid bone is expected to maintain laryngeal elevation by the suprahyoid muscles. However, the surgical technique has not been adequately validated. We describe the procedure, which preserves the hyoid body and suprahyoid muscle complex to maintain laryngeal elevation and provides access to the pharynx.

Method: Using cadaveric studies, we modified the SGPL procedure with a goal of preserving the hyoid bone, and performed the procedure in a 67-year-old man with large cell neuroendocrine carcinoma.

Conclusion: This modified SGPL technique aims to preserve the hyoid body while maintaining safety margins and supporting long-term swallowing function.