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Zygomaticotemporal nerve passage in the orbit and temporal area
Kun Hwang1, Min Sung Suh, Se Il Lee
1Department of Plastic Surgery, Inha University Hospital, Inchon, Korea. jokerhg@inha.ac.kr
The Journal of Craniofacial Surgery
|May 29, 2004
Summary
Injury to the zygomaticotemporal nerve can cause pain and numbness. This study identified a vulnerable zone near the zygomatic bone, crucial for preventing nerve damage during facial surgery.
Area of Science:
- Anatomy
- Neurosurgery
- Plastic Surgery
Background:
- Zygomaticotemporal nerve injury leads to sensory deficits and pain.
- Entrapment or damage occurs during zygomatic fracture repair and facial surgeries.
Purpose of the Study:
- To detail the surgical anatomy of the zygomaticotemporal nerve.
- Identify critical anatomical landmarks and vulnerable zones for surgical safety.
Main Methods:
- Dissection of 20 Korean adult cadaver hemifaces.
- Identification and measurement of the zygomaticotemporal nerve's trajectory and foraminal exit point.
Main Results:
- The zygomaticotemporal nerve exits the orbit via the zygomaticotemporal foramen.
- A vulnerable point (Vp) was identified 11.29 mm below the zygomaticofrontal suture and 21.76 mm from the zygomatic arch.
- A 10-mm diameter vulnerable zone was defined, centered 11 mm inferolaterally from the zygomaticofrontal suture at 45 degrees.
Conclusions:
- Precise anatomical knowledge of the zygomaticotemporal nerve is vital.
- The identified vulnerable zone aids in preventing nerve injury during procedures like the Dingman reduction for zygomatic fractures.