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Phenice method

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The Phenice method is a technique of determining the sex of a human skeleton from the innominate pelvis. In the procedure, sex is determined based on three features: the ventral arc, the subpubic concavity, and the medial aspect of the ischio-pubic ramus. As a non-metric absolute method, it relies on the recognition of discrete male and female traits. This makes the method objective, easily performable, and relatively quick[1] (although this has been challenged by those seeking to improve the method).[2] It is considered highly accurate, up to 96%, owing to the distinct biological differences between male and female anatomy in the pelvis, making it a highly useful method for those determining the sex of a skeleton.[1]

Determining sex using the Phenice method

Ventral arc

The ventral arc is a ridge of bone on the inferior aspect of the anterior surface of the pubis present only in females.

Sub-pubic concavity

From the anterior view, female os coxae display concavity of the ischiopubic ramus along the medial edge. In males, the medial edge of the ischiopubic ramus from the anterior view is straight.

Medial aspect of the ischiopubic ramus

From the medial view, the medial aspect of the ischiopubic ramus has a sharp edge inferior to the pubic symphyseal face in females. In males, this surface is broad and flat.

References

  1. ^ a b Phenice, T. W. (March 1969). "A newly developed visual method of sexing the os pubis". American Journal of Physical Anthropology. 30 (2): 297–301. doi:10.1002/ajpa.1330300214. ISSN 0002-9483.
  2. ^ Klales, Alexandra R.; Ousley, Stephen D.; Vollner, Jennifer M. (2012-06-19). "A revised method of sexing the human innominate using Phenice's nonmetric traits and statistical methods". American Journal of Physical Anthropology. 149 (1): 104–114. doi:10.1002/ajpa.22102. ISSN 0002-9483.