open access

Vol 74, No 1 (2015)
ORIGINAL ARTICLES
Published online: 2015-03-02
Submitted: 2014-06-10
Accepted: 2014-07-22
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An anatomic study of the accessory anterolateral talar facet

K. Hattori, E. Sakuma, M. Nakayama, A. Kozaki, I. Wada, T. Otsuka
DOI: 10.5603/FM.2015.0010
·
Pubmed: 25792397
·
Folia Morphol 2015;74(1):61-64.

open access

Vol 74, No 1 (2015)
ORIGINAL ARTICLES
Published online: 2015-03-02
Submitted: 2014-06-10
Accepted: 2014-07-22

Abstract

Background: A small accessory facet with articular surface morphology is occasionally seen on the talus, bordering on the lateral end of the sinus tarsi. This facet has been named the accessory anterolateral talar facet. However, few anatomical studies have addressed this facet. Here we present the precise morphology of accessory anterolateral talar facet with emphasis on anatomical correlation between the presence of this facet and the angle of the infero-lateral surface of the talus (talar infero-lateral surface — TILS angle).

Materials and methods: A total of 22 (11 male, 11 female) adult cadavers with no known pathological conditions in the talocalcaneal joints were examined during educational dissection at Nagoya City University Medical School in 2013. After exclusion of 1 joint due to the poor condition of the talus, 43 talus (22 right, 21 left) were analysed. We judged the presence of the accessory anterolateral talar facet and measured TILS angle. We performed statistical analysis on the point of laterality, gender difference and the difference in the TILS angles in tali with or without the accessory anterolateral talar facets.

Results: An accessory anterolateral talar facet was identified in 11 (26%) of the 43 specimens. Of the 21 cadavers with paired talar specimens, 5 displayed the facet bilaterally.

Conclusions: There was no sex difference and no significant laterality, however we found that TILS angle was significantly larger in accessory anterolateral talar facet positive samples than in negative ones.

Abstract

Background: A small accessory facet with articular surface morphology is occasionally seen on the talus, bordering on the lateral end of the sinus tarsi. This facet has been named the accessory anterolateral talar facet. However, few anatomical studies have addressed this facet. Here we present the precise morphology of accessory anterolateral talar facet with emphasis on anatomical correlation between the presence of this facet and the angle of the infero-lateral surface of the talus (talar infero-lateral surface — TILS angle).

Materials and methods: A total of 22 (11 male, 11 female) adult cadavers with no known pathological conditions in the talocalcaneal joints were examined during educational dissection at Nagoya City University Medical School in 2013. After exclusion of 1 joint due to the poor condition of the talus, 43 talus (22 right, 21 left) were analysed. We judged the presence of the accessory anterolateral talar facet and measured TILS angle. We performed statistical analysis on the point of laterality, gender difference and the difference in the TILS angles in tali with or without the accessory anterolateral talar facets.

Results: An accessory anterolateral talar facet was identified in 11 (26%) of the 43 specimens. Of the 21 cadavers with paired talar specimens, 5 displayed the facet bilaterally.

Conclusions: There was no sex difference and no significant laterality, however we found that TILS angle was significantly larger in accessory anterolateral talar facet positive samples than in negative ones.

Get Citation

Keywords

talus, anatomy, cadaver, variation, facet

About this article
Title

An anatomic study of the accessory anterolateral talar facet

Journal

Folia Morphologica

Issue

Vol 74, No 1 (2015)

Pages

61-64

Published online

2015-03-02

DOI

10.5603/FM.2015.0010

Pubmed

25792397

Bibliographic record

Folia Morphol 2015;74(1):61-64.

Keywords

talus
anatomy
cadaver
variation
facet

Authors

K. Hattori
E. Sakuma
M. Nakayama
A. Kozaki
I. Wada
T. Otsuka

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