Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology
Anatomy of the structures medial to the temporomandibular joint☆,☆☆
Section snippets
MATERIAL AND METHODS
These data were gathered from 20 formalin-fixed cadaveric specimens.
RESULTS
The mean distance from the outer aspect of the zygomatic arch to the middle meningeal artery was 31 mm (SD ± 4.9 mm; range, 21 mm to 43 mm). The AP distance from the artery to the height of glenoid fossa was 2.4 mm (SD ± 2.9 mm; range, –2 mm to 8 mm). The mean distance from zygomatic arch to the carotid artery was 37.5 mm (SD ± 5.0 mm; range, 29 mm to 48 mm). The AP distance was –6.5 mm (SD ± 15; range, –21 mm to 6 mm). The distance to the internal jugular vein was 38.3 mm (SD ± 4.9 mm; range,
DISCUSSION
Although complications associated with the medial aspect of the TMJ are rare, they are potentially devastating. We selected the zygomatic arch as a reference point because it is always visible during TMJ operations. We report mean values with a range of measurements. Clinically, attention should be paid to the values in closest potential relationship to a surgical site (ie, smallest zygomatic arch distance of 21 mm to middle meningeal artery, 29 mm to carotid artery, 31 mm to internal jugular
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Reprint requests: M. Anthony Pogrel, DDS, MD, FACS, FRCS, Department of Oral and Maxillofacial Surgery, University of California, San Francisco, 521 Parnassus Ave, C522, San Francisco, CA 94143-0440