Technical note: a blind test of mandibular ramus flexure as a morphologic indicator of sexual dimorphism in the human skeleton

1999 ◽  
Vol 6 (2) ◽  
pp. 113
Author(s):  
S.M Donnelly ◽  
S.M Hens ◽  
N.L Rogers ◽  
K.L Schneider
Keyword(s):  
Sexual Dimorphism ◽  
Technical Note ◽  
Mandibular Ramus ◽  
Human Skeleton ◽  
Blind Test

scholarly journals Sexual dimorphism in stapes by discriminant functional analysis

2017 ◽  
Vol 5 (8) ◽  
pp. 3534
Author(s):  
Kamal Singh ◽  
Aarti Rohilla
Keyword(s):  
Functional Analysis ◽  
Sexual Dimorphism ◽  
Middle Ear ◽  
Morphometric Study ◽  
Long Bones ◽  
Human Skeleton ◽  
Male And Female ◽  
Good Criterion ◽  
Potential Tool

Background: Sexing of human skeleton is highly contested subject and is usually done by using morphological and metrical traits of big intact bones like skull, mandible, pelvis and long bones etc.1 The stapes remains well protected by being housed in the middle ear, even in the mutilated bodies.Methods: The morphometric study of the 120 human stapes bones from 60 unidentified cadavers was aimed to know the presence of sexual dimorphism.Results: The weight and measurements of footplate could be a good criterion for determining percentage accuracy as male and female respectively and could be used as a potential tool for determination of sex.Conclusions: The study of normal dimensions and indices of stapes will provide insight to the forensic experts for deciding the sex of an individual in the disputed cases. Our findings are the results for guidance and future manipulation in the forensic and legal medicine.

Radiographic Blind Test of Curvature of the Posterior Border of the Mandibular Ramus as a Morphological Indicator of Gender

2016 ◽  
Vol 25 (8) ◽  
pp. 670-674 ◽  
Author(s):  
Alejandro Peregrina ◽  
Shereen S. Azer ◽  
Erin E. Tao ◽  
William M. Johnston
Keyword(s):  
Posterior Border ◽  
Mandibular Ramus ◽  
Blind Test

scholarly journals Ortopantomographic Blind Test of Mandibular Ramus Flexure as a Morphological Indicator of Sex in Chilean Young Adults

2008 ◽  
Vol 26 (1) ◽  
Author(s):  
Iván Claudio Suazo Galdames ◽  
Jaime San Pedro Valenzuela ◽  
Nilo Alejandro Schilling Quezada ◽  
César Eduardo Celis Contreras ◽  
José Alejandro Hidalgo Rivas ◽  
...  
Keyword(s):  
Young Adults ◽  
Mandibular Ramus ◽  
Blind Test

scholarly journals Bi-Plane Fluoroscopic-Guided Balloon Rhizotomy for Trigeminal Neuralgia: A Technical Note

Neurosurgery ◽  
2019 ◽  
Vol 66 (Supplement_1) ◽  
Author(s):  
Awais Vance ◽  
Tarek Youssef El Ahmadieh ◽  
Zachary Christian ◽  
Salah G Aoun ◽  
Samuel L Barnett ◽  
...  
Keyword(s):  
Trigeminal Neuralgia ◽  
Technical Note ◽  
Percutaneous Technique ◽  
Foramen Ovale ◽  
Mandibular Ramus ◽  
Anatomical Structures ◽  
Percutaneous Balloon ◽  
A New Technique ◽  
Multiple Patients ◽  
Orbital Rim

Abstract INTRODUCTION The classic partially blinded percutaneous technique using external landmarks to cannulate the foramen ovale for the treatment of trigeminal neuralgia can place important anatomical structures, such as the distal cervical internal carotid artery, at risk. We have developed a new technique in which we use anteroposterior fluoroscopy to reliably locate the foramen ovale and thus make it safer and easier to cannulate. METHODS Locating foramen ovale was initially tested using anteroposterior fluoroscopy on cadaveric skulls in the neurosurgical simulation lab. Fluoroscopic landmarks were identified and utilized to assist in successfully locating the foramen ovale during percutaneous balloon rhizotomy procedures performed in multiple patients with trigeminal neuralgia. This technique was successfully used in multiple patients at our institution without any immediate complications except for one cheek hematoma. In this report, we describe our technique in detail. RESULTS The AP fluoroscopy is directed laterally in the coronal plane until a line drawn inferiorly from the lateral orbital rim bisects the inner concavity of the mandibular angle. Fluoroscopy is then directed inferiorly until the top of the petrous ridge bisects the mandibular ramus. The foramen ovale will come into view within the window between the mandibular ramus and hard palate. Two case illustrations are provided CONCLUSION Balloon rhizotomy is a commonly used treatment option for trigeminal neuralgia. Direct visualization of the foramen ovale can reliably be achieved on AP fluoroscopy using specific anatomic landmarks. This technique can be utilized to increase the accuracy and safety of the procedure.

scholarly journals SIGNIFICANCE OF SACRAL INDEX IN ESTIMATION OF SEX IN NORTH INDIAN POPULATION

2020 ◽  
Vol 28 (1) ◽  
Author(s):  
Kanchan Bisht ◽  
Rakesh K. Verma ◽  
Archana Rani ◽  
Navneet Kumar ◽  
Baibhav Bhandari
Keyword(s):  
Sexual Dimorphism ◽  
Sex Determination ◽  
Indian Population ◽  
Great Accuracy ◽  
Maximum Length ◽  
North Indian Population ◽  
Human Skeleton ◽  
Reliable Criterion ◽  
Male And Female

Introduction: For the assessment of sexual dimorphism of human skeleton, pelvis has been used with great accuracy by anthropologists and forensic experts. Sacrum, being an integral part of pelvis, has therefore gained importance. Among the various parameters of sacrum, sacral index is the most reliable one, calculated by the formula: Sacral index=max breadth x100/max length of sacrum. This study aimed to determine the significance of sacral index in estimation of sex in north Indian population. Materials and methods: For the present study, 35 dry human sacrum bones were obtained from the Department of Anatomy, KGMU, Lucknow, out of which 32, free of deformity, were used in study. The bones were first separated as male and female on the basis of their gross features. Maximum length and breadth of sacra were measured using digital sliding Vernier calliper and sacral index was calculated. Results: Mean sacral index was significantly higher in females (109.52) as compared to males (92.37). Sex determination done on the basis of gross features were comparable to that done by calculation of sacral index, except in sacrum no. 5,13,14,15 &16. Sacrum no. 5,13,14 &15 were more curved forwards (female feature) while their sacral indices were much lesser (male feature). Sacrum no. 16 had a uniform curvature (male feature) while its sacral index was>105 (female feature). Sacrum no. 16 also had only 3 dorsal and ventral foramina, which was a variation. Conclusions: Sacral index is a reliable criterion for sex determination, useful for anatomical, medicolegal and anthropological purposes.

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