This is a study book for people learning osteology or anatomy. It features all the bones of the post-cranial skeleton, improving on some previous books with more detailed images of the bones of the feet. Each bone has their common features labelle...
Femurs may display a flattened area beneath the trochanters, this is known as a Platymeric Subtrochanter. Platymeric Subtrochanters are most often seen in Native American and East Asian populations, however, they have been observed in European countries as well. Whether their cause is genetic, activity based, or both is not yet known.
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The degrees of Platymeric expression are: Platymeria - having highly flattened edges, these have a low Platymeric Index > 84.9 Eurymeria - these are just slight flattening on the sides, making the shaft not particularly round with a Platymeric Index from 85.0-99.9 Stenomeria - Rounded shaft with a somewhat anterior-posterior broadening, these have a Platymeric Index 100 <
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Key Measurements: Subtrochanteric Anterior-Posterior Diameter - taken from the shaft just below the lesser trochanter from the front to the back of the shaft avoiding the gluteal tuberosity Subtrochanteric Mediolateral Diameter - taken at the same level as the Subtrochanteric Anterior-Posterior Diameter but this time measuring the distance from side to side
Key Equations: Platymeric Index - shows the difference in general shape of the subtrochanteric femur shaft
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