Related Experiment Video
Updated: Aug 10, 2026

Treatment of Facial Deformities using 3D Planning and Printing of Patient-Specific Implants
Published on: May 23, 2020
Montgomery® implant extrusion after type I thyroplasty. A CARE case report
1Department of Otolaryngology and head & neck, Clinique St-Vincent, 8, rue de Paris, CS 71027, 97404 Saint-Denis Cedex, Reunion.
Goal:
To document the first case of Montgomery® implant extrusion after type I thyroplasty for unilateral laryngeal nerve paralysis in adults.
Case:
Three years after onset of right idiopathic unilateral laryngeal nerve paralysis resulting in severe dysphonia not improved by speech therapy, a 45-year-old Caucasian woman consulted to improve her voice. Maximum phonation time (MPT) was 5seconds. Voice Handicap Index (VHI) was 64. Type I thyroplasty with n°10 Montgomery® implant was performed without difficulties. Immediate postoperative course was uneventful. One month after thyroplasty, the patient considered her voice normal, with 8sec MPT and VHI of 23. At 4 months, there was implant extrusion through the cervical skin, with 9sec MPT and VHI of 18.
Conclusion:
When performing type I thyroplasty with Montgomery® implant, the otorhinolaryngologist must not only take care to position the implant properly within the thyroid lamina but also ensure that the inner flanges of the implant are well deployed, to achieve proper retention.

