[Analysis of 54 cases of thyroglossal duct cyst resection with hyoid bone preservation].

Objective: To investigate the efficacy, complications and recurrence rate of thyroglossal duct cyst resection with hyoid preservation in children. Method: Fifty-four children with thyroglossal duct cyst underwent cervical color Doppler ultrasound, CT and/or MRI before operation to make a definite diagnosis.Hyoid-preserving thyroglossal cyst resection was performed in all children.In 51 cases, the cyst wall was close to the hyoid bone, and the thin layer of the hyoid bone surface was removed, while the other 3 cases had no definite association with hyoid bone, only cysts and branches were resected.In the cases where the cyst was close to the hyoid bone, fistula tissue was found in the suprahyoid muscle group in 4 cases, which were carefully separated and excised. Result: All patients had no complications after operation, and the incision healed in the first stage. Postoperative pathology: 51 cases were thyroglossal duct cysts and 3 cases were epidermoid cysts.Follow-up for 1 years to 3 years showed that only 1 case had recurrence（2.0%,1/51）. Conclusion: Postoperative recurrence of thyroid hyoid cysts does not depend on whether the hyoid bone is removed, but on the residue of its branches.The significance of hyoid bone preservation is to narrow the scope of operation, reduce trauma and complications, and avoid the impact of hyoid bone loss on vocal and swallowing function.