An anatomic study using three‐dimensional reconstruction for pterygopalatine fossa infiltration via the greater palatine canal
Identifieur interne : 004983 ( Main/Exploration ); précédent : 004982; suivant : 004984An anatomic study using three‐dimensional reconstruction for pterygopalatine fossa infiltration via the greater palatine canal
Auteurs : Se Hwan Hwang [Corée du Sud] ; Jae Hyun Seo [Corée du Sud] ; Young Hoon Joo [Corée du Sud] ; Byung Guk Kim [Corée du Sud] ; Jin Hee Cho [Corée du Sud] ; Jun Myung Kang [Corée du Sud]Source :
- Clinical Anatomy [ 0897-3806 ] ; 2011-07.
English descriptors
- KwdEn :
- Alveolar bone, Anesthetic, Axial views, Cadaveric, Cadaveric studies, Canal, Catholic university, Coronal, Coronal plane, Foramen, Foramen rotundum, Fossa, Greater palatine canal, Greater palatine foramen, Hard palate, Local anesthetic, Long axis, Long axis diameter, Maxillary, Maxillary artery, Neck surgery, Online issue, Palate, Palatine, Paranasal sinus surgery, Parasagittal plane, Pterygopalatine, Pterygopalatine fossa, Sagittal, Sagittal plane, Segmentation, Short axis diameter, Sinus, Soft tissue, Sphenopalatine foramen, Volumetric capacity, Wormald.
- Teeft :
- Alveolar bone, Anesthetic, Axial views, Cadaveric, Cadaveric studies, Canal, Catholic university, Coronal, Coronal plane, Foramen, Foramen rotundum, Fossa, Greater palatine canal, Greater palatine foramen, Hard palate, Local anesthetic, Long axis, Long axis diameter, Maxillary, Maxillary artery, Neck surgery, Online issue, Palate, Palatine, Paranasal sinus surgery, Parasagittal plane, Pterygopalatine, Pterygopalatine fossa, Sagittal, Sagittal plane, Segmentation, Short axis diameter, Sinus, Soft tissue, Sphenopalatine foramen, Volumetric capacity, Wormald.
Abstract
The pterygopalatine fossa (PPF) is accessed via the greater palatine canal (GPC) in an attempt to reduce bleeding during paranasal sinus surgery. This study aims to investigate the anatomy of the greater palatine foramen (GPF), GPC, and the PPF, with reference to PPF infiltration using three‐dimensional reconstruction of computer tomographic (CT) scan measurements. The CT scans of 50 patients were retrospectively evaluated. The morphology of the GPF, GPC, and the PPF was assessed in a three‐dimensional model. The thickness of the mucosa over the GPF was evaluated in the parasagittal plane. The mean length of the GPC was 13.8 ± 2.0 mm, and the mean height of the PPF was 21.0 ± 3.4 mm. The mean angles of the GPC in relation to the hard palate and the PPF were 67.4° ± 6.9° and 159.8° ± 7.1°, respectively. The GPF was 16.2 ± 1.3 mm lateral to the sagittal plane of the posterior nasal spine (PNS) and 6.1 ± 1.7 mm anterior to the coronal plane of the PNS. The mean volume of the PPF was 1039.9 ± 280.0 mm3. The mean thickness of the mucosa overlying the GPF was 10.7 ± 1.8 mm. We recommend that the PNS may be used as the bony landmark to locate the position of the GPF during PPF infiltration. The needle delivering the anesthetic should be bent 25 mm from the tip at a 45° angle, and a 1‐ml injection of anesthetic should be administered in adults. Clin. Anat. 24:576–582, 2011. © 2011 Wiley‐Liss, Inc.
Url:
DOI: 10.1002/ca.21134
Affiliations:
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<term>Cadaveric studies</term>
<term>Canal</term>
<term>Catholic university</term>
<term>Coronal</term>
<term>Coronal plane</term>
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<term>Greater palatine canal</term>
<term>Greater palatine foramen</term>
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<term>Online issue</term>
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<term>Paranasal sinus surgery</term>
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<term>Pterygopalatine</term>
<term>Pterygopalatine fossa</term>
<term>Sagittal</term>
<term>Sagittal plane</term>
<term>Segmentation</term>
<term>Short axis diameter</term>
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<term>Coronal plane</term>
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<term>Fossa</term>
<term>Greater palatine canal</term>
<term>Greater palatine foramen</term>
<term>Hard palate</term>
<term>Local anesthetic</term>
<term>Long axis</term>
<term>Long axis diameter</term>
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<term>Maxillary artery</term>
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<term>Online issue</term>
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<term>Sagittal plane</term>
<term>Segmentation</term>
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<front><div type="abstract" xml:lang="en">The pterygopalatine fossa (PPF) is accessed via the greater palatine canal (GPC) in an attempt to reduce bleeding during paranasal sinus surgery. This study aims to investigate the anatomy of the greater palatine foramen (GPF), GPC, and the PPF, with reference to PPF infiltration using three‐dimensional reconstruction of computer tomographic (CT) scan measurements. The CT scans of 50 patients were retrospectively evaluated. The morphology of the GPF, GPC, and the PPF was assessed in a three‐dimensional model. The thickness of the mucosa over the GPF was evaluated in the parasagittal plane. The mean length of the GPC was 13.8 ± 2.0 mm, and the mean height of the PPF was 21.0 ± 3.4 mm. The mean angles of the GPC in relation to the hard palate and the PPF were 67.4° ± 6.9° and 159.8° ± 7.1°, respectively. The GPF was 16.2 ± 1.3 mm lateral to the sagittal plane of the posterior nasal spine (PNS) and 6.1 ± 1.7 mm anterior to the coronal plane of the PNS. The mean volume of the PPF was 1039.9 ± 280.0 mm3. The mean thickness of the mucosa overlying the GPF was 10.7 ± 1.8 mm. We recommend that the PNS may be used as the bony landmark to locate the position of the GPF during PPF infiltration. The needle delivering the anesthetic should be bent 25 mm from the tip at a 45° angle, and a 1‐ml injection of anesthetic should be administered in adults. Clin. Anat. 24:576–582, 2011. © 2011 Wiley‐Liss, Inc.</div>
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