Strap muscles thyroid

The infrahyoid muscles or strap muscles are a group of four paired muscles in the anterior neck below the hyoid bonewithin the muscular triangle.

Federal government websites often end in. The site is secure. However, the impact of strap muscle invasion on disease-specific survival DSS remains controversial. The modified staging schema may better reflect cancer-caused death risk and may prevent potential overstaging. Validation studies have corroborated the new staging system by showing better allocation of relatively low-risk patients into lower stages with excellent survival outcomes 3 , and high-risk patients into more advanced stages 3 — 7. The newly introduced staging factor of gross strap muscle invasion alone T3b has been associated with higher risk of positive resection margin, bigger tumor size, higher recurrence rate, and lower disease survival rate 8 —

Strap muscles thyroid

The infrahyoid muscles are a group of four muscles that are located inferiorly to the hyoid bone in the neck. They can be divided into two groups:. The arterial supply to the infrahyoid muscles is via the superior and inferior thyroid arteries , with venous drainage via the corresponding veins. In this article, we shall look at the anatomy of the infrahyoid muscles — their attachments, actions and innervations. The omohyoid is comprised of two muscle bellies, which are connected by a muscular tendon. The sternohyoid muscle is located in the superficial plane of the neck, along with the omohyoid muscle. The sternothyroid muscle is a wide muscle, located underneath the sternohyoid in the deep plane of the neck. The thyrohyoid is a short band of muscle, thought to be a continuation of the sternothyroid muscle. In this article, we shall look at the anatomy of the infrahyoid muscles - their attachments, actions and innervations. Once you've finished editing, click 'Submit for Review', and your changes will be reviewed by our team before publishing on the site. We use cookies to improve your experience on our site and to show you relevant advertising. To find out more, read our privacy policy. Omohyoid The omohyoid is comprised of two muscle bellies, which are connected by a muscular tendon.

A total of 18, The USMF surgical technique provides wide exposure of the surgical field in patients who require difficult thyroid surgery.

Wide and adequate exposure of the surgical field is essential for successful thyroid surgery. The most common procedure for conventional open thyroidectomy is the midline approach, in which the strap muscles are divided along the linea alba and separated from the thyroid gland. An insufficient surgical field exposure not only increases operation time and blood loss, it also increases the risk of injury to the recurrent laryngeal nerve RLN and parathyroid gland PG due to poor visibility during surgical dissection 1. The aim of this study was to evaluate the U-shaped strap muscle flap USMF approach that provides excellent exposure of the surgical field. Postoperative objective voice analysis and subjective assessment of voice and swallowing were also performed to evaluate USMF outcomes, including voice and swallowing function. The USMF was performed as follows. After elevation of the skin flap, the strap muscles were cut at a lower margin close to the clavicle and then cut along the anterior margin of both sternocleidomastoid muscles.

Federal government websites often end in. The site is secure. Congenital anterior neck masses comprise a rare group of lesions typically diagnosed in childhood. Most commonly, lesions are anomalies of the thyroglossal duct, namely the thyroglossal duct cyst, along with ectopic thyroid tissue. Although usually suspected based on clinical examination, imaging can confirm the diagnosis, assess the extent, and evaluate for associated complications. Thus, understanding of the embryologic course of thyroid development is crucial with recognition of critical landmarks such as the foramen cecum, hyoid bone, thyroid cartilage, and strap musculature to aid in the diagnosis of an anterior neck mass.

Strap muscles thyroid

The infrahyoid muscles or strap muscles are a group of four paired muscles in the anterior neck below the hyoid bone , within the muscular triangle. They are responsible for depressing the hyoid during swallowing. These muscles can be remembered by the mnemonic "TOSS". The strap muscles are ensheathed by the middle layer of the deep cervical fascia , thereby forming one of the deep fascial compartments of the neck , although it is not commonly recognized as such 4. Each muscle is supplied by different nerves from the ansa cervicalis.

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If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. StatPearls [Internet]. The superior thyroid vein courses along the superior thyroid artery and eventually drains into the internal jugular vein. Postoperative objective voice analysis and subjective assessment of voice and swallowing were also performed to evaluate USMF outcomes, including voice and swallowing function. Hidden categories: Articles with short description Short description matches Wikidata Use dmy dates from August All articles with unsourced statements Articles with unsourced statements from November Articles with TA98 identifiers. Articles Cases Courses Quiz. It inserts at the lower laminar and inferior cornu of the thyroid cartilage. Ani Mnatsakanian ; Yasir Al Khalili. A total of 19, patients were included in the final analysis of demographic variables including age at diagnosis, race, sex, year of diagnosis and survival status. Related articles: Anatomy: Head and neck.

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The term infrahyoid refers to the region below the hyoid bone , while the term strap muscles refers to the long and flat muscle shapes which resembles a strap. Head Neck Surg. Another 40 patients who had received total thyroidectomy by midline approach during the same time period were used as a control group to compare voice and swallowing outcomes. Similar articles in PubMed. It does this by gently tilting the thyroid cartilage forward. Read it at Google Books - Find it at Amazon 4. Therefore, we conclude that the voice and swallowing outcomes obtained by USMF approach were not inferior to those obtained by midline approach. The other authors have no conflicts of interest to declare. The sternothyroid muscle is a wide muscle, located underneath the sternohyoid in the deep plane of the neck. Other parameters did not significantly differ. Two muscle bellies are connected by an intermediate tendon, which is anchored to the clavicle by the deep cervical fascia. Pitfalls in the TNM classification of thyroid carcinoma. Thus, the patient will present with dysphonia if the nerve has suffered an injury.