MICROSURGICAL ANATOMY OF THE JUGULAR FORAMEN ANATOMIC AND RADIOLOGIC STUDY WITH SURGICAL IMPLICATIONS
Mahmoud Attia Mohamed Mokbel;
Abstract
The morphometric measures in 25 dry skulls showed that the -mean
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intracranial and extracranial transverse diamteres of the jugular foramen
nf 1i were insignificantly different when comparing the 2 sides. The right being
16,45 mm on the intracranial side and the left 16,5 mm. On the extracranial
f-:i
/l side the right was 15,1 mm and the left was 15,44. On the other hand the
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f]
mean sagittal diameter of the sigmoid part of the foramen was significantly greater on both the extracranial aspect of the right side being 11,75 mm and intracranial aspect being 9,32 mm than the left extra and intracranial aspects
1-o. being 9,25 mm and 7,94 mm respectively. Using the extracranial sagittal
c;
fI l
L
[]
r.1.J.
D
H
diameter of the sigmoid part of the foramen as the representative there were
20 skulls in which the right foramen was bigger and in the remaining 5 skulls the left foramen was bigger. Using a special equation to assess the size of
the foramen which is: the size of the foramen = the extracranial sagittal •
diameter of the sigmoid part of the foramen + the extracranial transverse diameter of the foramen we found that there were 16 skulls in which the right foramen was bigger, 8 skulls in which the left foramen was bigger and 1 skull in which the 2 foramina were equal.
On the other hand, the distance between the stylomastoid foramen• and the jugular foramen although being insignificantly different between the right and left sides being 5,14 mm on the right and 5,72 mm on the left, yet it is inversly proportional with the sagittal diameter of the ipsilateral sigmoid part of the jugular foramen.
Among the 25 skulls which represented the bony part of our study, complete bony bridging within the jugular foramen was found in 7 skulls (28%). Bridging was commoner on the extracranial aspect than on the intracranial aspect being 79% and 21% respectively.
In the soft tissue part of our study, which represented by 5 cadaveric dissections no bridging was found within the foramen and the bridging whether membranous or bony was only found on the intracranial aspect of the foramen.
! .J
intracranial and extracranial transverse diamteres of the jugular foramen
nf 1i were insignificantly different when comparing the 2 sides. The right being
16,45 mm on the intracranial side and the left 16,5 mm. On the extracranial
f-:i
/l side the right was 15,1 mm and the left was 15,44. On the other hand the
,._)
,..;,
,!..-.J:
f]
mean sagittal diameter of the sigmoid part of the foramen was significantly greater on both the extracranial aspect of the right side being 11,75 mm and intracranial aspect being 9,32 mm than the left extra and intracranial aspects
1-o. being 9,25 mm and 7,94 mm respectively. Using the extracranial sagittal
c;
fI l
L
[]
r.1.J.
D
H
diameter of the sigmoid part of the foramen as the representative there were
20 skulls in which the right foramen was bigger and in the remaining 5 skulls the left foramen was bigger. Using a special equation to assess the size of
the foramen which is: the size of the foramen = the extracranial sagittal •
diameter of the sigmoid part of the foramen + the extracranial transverse diameter of the foramen we found that there were 16 skulls in which the right foramen was bigger, 8 skulls in which the left foramen was bigger and 1 skull in which the 2 foramina were equal.
On the other hand, the distance between the stylomastoid foramen• and the jugular foramen although being insignificantly different between the right and left sides being 5,14 mm on the right and 5,72 mm on the left, yet it is inversly proportional with the sagittal diameter of the ipsilateral sigmoid part of the jugular foramen.
Among the 25 skulls which represented the bony part of our study, complete bony bridging within the jugular foramen was found in 7 skulls (28%). Bridging was commoner on the extracranial aspect than on the intracranial aspect being 79% and 21% respectively.
In the soft tissue part of our study, which represented by 5 cadaveric dissections no bridging was found within the foramen and the bridging whether membranous or bony was only found on the intracranial aspect of the foramen.
Other data
| Title | MICROSURGICAL ANATOMY OF THE JUGULAR FORAMEN ANATOMIC AND RADIOLOGIC STUDY WITH SURGICAL IMPLICATIONS | Other Titles | دراسة تشريحية ميكروسكوبية واشعاعية للثقب الودجى متضمنة التطبيق الجراحى | Authors | Mahmoud Attia Mohamed Mokbel | Issue Date | 2000 |
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