Transoral Resection of Stylohyoid Ligament

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Author: Tyler McElwee
Published:
Specialties: Head and Neck Surgery, Otolaryngology
Schools: Emory School of Medicine
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Basic Info

Contributors: Raj Dedhia, M.D

Eagle’s Syndrome, also known as Styloid Syndrome, is defined by the presence of an elongated, misshapen, or calcified stylohyoid ligament. It is characterized by pain localized to either side of the throat, odynophagia, and referred otalgia. Transoral removal of the stylohyoid ligament consists of transecting the stylohyoid ligament to release tension and result in improvement of pain.

DOI #: https://doi.org/10.17797/o3iz10qacz

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Procedure

o Ipsilateral tonsillectomy should be performed prior to surgery
o Tonsillar fossa mucosa is incised to reveal the superior constrictor muscles
o Superior constrictor muscles are incised to access the stylohyoid ligament
o Stylohyoid ligament is skeletonized with a Curved Allis and a periosteal elevator
o Surrounding parapharyngeal is retracted to prevent injury
o Kerrison rongeur is used to transect the styloid process superiorly
o Remaining in vivo portion is smoothed with rasp
o Superior constrictor muscle is reapproximated with absorbable suture

Indications

o Elongated (>30mm), misshapen, or calcified stylohyoid ligament with associated symptoms

Contraindications

o Mechanical trismus (<30mm) o Coagulopathy

Instrumentation

Setup

Tools necessary include Colorado bovie, curved Allis, periosteal elevator, Yankauer suction, Kerrison rongeur, rasp, and 3-0 Vicryl sutures.

Preoperative Workup

o Panorex film can provide view of elongated stylohyoid ligament with or without calcification
o CT neck without contrast can be used for both confirmation of diagnosis and view of patient anatomy

Anatomy and Landmarks

o Tonsillar fossa
o Superior Constrictor Muscles
o Stylohyoid ligament

Advantages/Disadvantages

o Advantages of transoral resection compared to transcervical resection: no external scar, no risk to marginal mandibular nerve, lingual nerve, skull base structures
o Disadvantages of transoral resection compared to transcervical resection: increased recovery time, limited inferior extent of resection

Complications/Risks

o Injury to carotid artery
o Injury to glossopharyngeal nerve

Disclosure of Conflicts

o Injury to carotid artery
o Injury to glossopharyngeal nerve

Acknowledgements

o Emily M. Barrow, MD (Otolaryngology Resident)

References

1. Myers, E. 2009. Operative Otolaryngology: Head and Neck Surgery. Chapter 25, Transoral Removal of Elongated Styloid Process.
2. Colby CC, Del Gaudio JM. Stylohyoid complex syndrome: a new diagnostic classification. Arch Otolaryngol Head Neck Surg 2011;137:248�¢ï¿½ï¿½252.

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