📝 “What is the ‘Pitanguy Line’ and it’s Importance in Facial Trauma Examination?”

8.7.24

Quick Review #198 - #surgery #surgeon #doctorgallagher #oralsurgery #oralsurgeon #omfs #dentist #dentistry #dental #plasticsurgery #pitanguysline

The Pitanguy line is an anatomical landmark used primarily in plastic surgery, particularly in the context of facial aesthetics and reconstructive procedures. It is named after Dr. Ivo Pitanguy, a renowned Brazilian plastic surgeon who developed this concept.

• Location Relative to Nerve Branches: The Pitanguy line is used as an anatomical landmark to approximate the location of the temporal and zygomatic branches of the facial nerve. This line helps surgeons visualize where these nerve branches are likely to be found in relation to facial structures.

• Orientation: The line runs from the tragus of the ear to a point between the lateral canthus of the eye and the mouth, aligning closely with the path of the zygomatic branch and indicating the region where the temporal branch ascends to the forehead.

Temporal Branch:

• Function: The temporal branch innervates muscles such as the frontalis (forehead muscle), orbicularis oculi (muscle around the eyes), and corrugator supercilii (muscle involved in frowning). These muscles are crucial for expressions like raising the eyebrows and closing the eyes.

• Course: The temporal branch travels superiorly and laterally from the parotid gland, crossing the zygomatic arch and running toward the forehead and temple region.

Zygomatic Branch:

• Function: The zygomatic branch innervates muscles including parts of the orbicularis oculi and the zygomaticus major and minor (muscles that elevate the corners of the mouth). These muscles are involved in expressions such as smiling and blinking.

• Course: The zygomatic branch travels anteriorly and superiorly from the parotid gland, passing over the zygomatic arch to reach the lateral canthus of the eye and cheek area.

Summary:

The Pitanguy line is a key teaching tool in surgical education, providing trainees with a visual and practical reference for locating and safeguarding the temporal and zygomatic branches during various facial procedures.

References:

1. Pankratz, J., Boder, J., Mayer, C., Rana, V., Stephens, R., Segars, L., & Surek, C. C. (2020). Depth transitions of the frontal branch of the facial nerve: Implications in SMAS rhytidectomy. JPRAS Open, 26, 101–108.

2. Pitanguy, I. (1971). Surgical landmarks of the face. Clinical Plastic Surgery, 5(2), 199–205.

3. Baker, D. C., & Conley, J. (1979). Avoiding facial nerve injuries in rhytidectomy. Plastic and Reconstructive Surgery, 64(6), 781–795.

4. ChatGPT.2024

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