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Squatting facets on the neck of the talus and extensions of the trochlear surface of the talus in late Byzantine males

Published online by Cambridge University Press:  01 February 1998

I. H. OYGUCU ,
M. A. KURT ,
I. IKIZ ,
T. EREM  and
D. C. DAVIES
I. H. OYGUCU
Affiliation:
Department of Anatomy, School of Medicine, University of Uludag, Bursa, Turkey
M. A. KURT
Affiliation:
Department of Anatomy, School of Medicine, University of Uludag, Bursa, Turkey Department of Anatomy and Developmental Biology, St George's Hospital Medical School, London, UK
I. IKIZ
Affiliation:
Department of Anatomy, School of Medicine, University of Uludag, Bursa, Turkey
T. EREM
Affiliation:
Department of Anatomy, School of Medicine, University of Uludag, Bursa, Turkey
D. C. DAVIES
Affiliation:
Department of Anatomy and Developmental Biology, St George's Hospital Medical School, London, UK
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Abstract

Remodelling of bone occurs in response to physical stress. Habitual squatting is associated with modifications of the neck of the talus (squatting facets) and its trochlear/malleolar surfaces (trochlear extensions), and individual populations exhibit different incidences of these modifications that reflect their lifestyle. The occurrence of talar modifications was therefore investigated in a population of late Byzantine (13th century AD) adult male skeletons. Lateral squatting facets occurred most frequently (37.7%), but medial (0.6%), combined (0.6%) and continuous (gutter-like) facets (0.6%) were also observed. Lateral (8.0%), medial (10.9%) and continuous (lateral/central/medial) extensions (4.6%) of the trochlear surface were all present in the late Byzantine population. There was no evidence of side dimorphism. The occurrence of lateral squatting facets in the late Byzantine population was greater than that reported for modern Europeans, but similar to that reported for some populations of modern Indians. The frequency of occurrence of trochlear extensions in the late Byzantine population was substantially less than in modern Indian populations, but similar to modern Europeans. Therefore, it is unlikely that precisely the same factors determine the expression of squatting facets and trochlear extensions.

Keywords

Hyperdorsiflexion of the footbone remodelling
Type
Short Report
Information
The Journal of Anatomy , Volume 192 , Issue 2 , February 1998 , pp. 287 - 291
Copyright
© Anatomical Society of Great Britain and Ireland 1998

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