Tuesday, September 26, 2017

Joll's triangle in thyroidectomy

Hello friends,

This post is about the importance of Joll's triangle in thyroidectomy.

Joll's triangle is used to identify external laryngeal nerve during thyroidectomy.

Boundaries of this triangle are :
Laterally: Upper pole of thyroid gland and superior thyroid vessels.
Superiorly: Attachment of strap muscles and deep investing layer of fascia to hyoid.
Medially: Midline of neck.
Floor: Cricothyroid muscle.

This triangle contains superior laryngeal nerve which gives rise to external laryngeal nerve.

Given below is the diagram of this triangle:

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