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Identity of "orbitozygomatic muscle"
Kun Hwang1, Daw Kwang Lee, In Hyuk Chung
1Department of Plastic Surgery, Inha University Hospital, Inchon, Korea.
The Journal of Craniofacial Surgery
|May 10, 2002
Summary
Researchers discovered a new muscle, the Orbitozygomatic Muscle (OZM), in 40% of Korean cadavers. This muscle may be an aberrant orbicularis oculi muscle or a distinct anatomical structure.
Area of Science:
- Anatomy
- Morphology
- Surgical Anatomy
Background:
- Anatomical variations in facial muscles are common.
- Understanding these variations is crucial for surgical procedures.
Purpose of the Study:
- To describe a newly identified muscle in the mid-face.
- To determine the prevalence of this muscle in Korean cadavers.
- To define the anatomical relationships of the new muscle.
Main Methods:
- Dissection of 42 hemifacial specimens from Korean cadavers.
- Detailed morphological examination and description of identified muscles.
- Documentation of anatomical relationships and surrounding structures.
Main Results:
- A distinct muscle, named Orbitozygomatic Muscle (OZM), was identified in 17 (40%) of the specimens.
- The OZM may represent an aberrant orbicularis oculi muscle or a separate entity.
- A triangular space involving the OZM, orbicularis oculi muscle (OOM), and Zygomaticus Minor muscle was identified, providing passage for neurovascular bundles and the suborbicularis oculi fat pad (SOOF).
Conclusions:
- The Orbitozygomatic Muscle (OZM) is a newly described anatomical finding.
- Its prevalence suggests it should be considered in mid-facial anatomy and surgical considerations.
- Further research is needed to clarify its exact nature and functional significance.