Forensic Importance of Piriform Aperture: An Overview

✓The authors describe a newly modified nasal speculum that enables panoramic visualization of the deep and wide surgical field created via an extended transsphenoidal approach. In their approach, the bone around the piriform aperture is not removed.

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Morphometric measurements and sexual dimorphism of the piriform aperture in adults

Surgical and Radiologic Anatomy ◽

10.1007/s00276-013-1116-2 ◽

2013 ◽

Vol 35 (10) ◽

pp. 917-924 ◽

Cited By ~ 13

Author(s):

Eric Moreddu ◽

Laurent Puymerail ◽

Justin Michel ◽

Michaël Achache ◽

Patrick Dessi ◽

...

Keyword(s):

Sexual Dimorphism ◽

Morphometric Measurements ◽

Piriform Aperture

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Bone grafting the piriform aperture deformity in isolated cleft lip patients: Indication, technique, and results

Journal of Oral and Maxillofacial Surgery ◽

10.1016/s0278-2391(97)90286-x ◽

1997 ◽

Vol 55 (10) ◽

pp. 1089-1093 ◽

Cited By ~ 7

Author(s):

Karel G.H van der Wal ◽

B.Daniel van der Meulen ◽

Jan J van der Biezen ◽

J.Wiebe Mulder

Keyword(s):

Bone Grafting ◽

Cleft Lip ◽

Piriform Aperture

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Mapping surgical coordinates of the sphenopalatine foramen: surgical navigation study

The Journal of Laryngology & Otology ◽

10.1017/s0022215109004344 ◽

2009 ◽

Vol 123 (7) ◽

pp. 742-745 ◽

Cited By ~ 9

Author(s):

L Hadoura ◽

C Douglas ◽

G W McGarry ◽

D Young

Keyword(s):

Surgical Navigation ◽

Three Dimensional ◽

Observer Variation ◽

Radiological Anatomy ◽

Sphenopalatine Foramen ◽

Bony Landmarks ◽

Anterior Nasal Spine ◽

Nasal Floor ◽

Navigation Software ◽

Piriform Aperture

AbstractObjectives:To identify measurements that may help intra-operative localisation of the sphenopalatine foramen.Design:The study used three-dimensional surgical navigation software to study radiological anatomy, in order to define the distances and angulations between identifiable bony landmarks and the sphenopalatine foramen.Results:The distance from the anterior nasal spine to the sphenopalatine foramen was 59 mm (±4 mm; inter-observer variation = 0.866; intra-observer variation = 0.822). The distance from the piriform aperture to the sphenopalatine foramen was 48 mm (±4 mm; inter-observer variation = 0.828; intra-observer variation = 0.779). The angle of elevation from the nasal floor to the sphenopalatine foramen was 22° (±3°; inter-observer variation = 0.441; intra-observer variation = 0.499).Conclusions:The sphenopalatine foramen is consistently identifiable on three-dimensional, reconstructed computed tomography scans. Repeatable measurements were obtained. The centre point of the foramen lies 59 mm from the anterior nasal spine at 22° elevation above the plane of the hard palate and 48 mm from the piriform aperture. We discuss how these data could be used to facilitate intra-operative location of the sphenopalatine foramen in difficult cases.

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