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Erschienen in: Surgical and Radiologic Anatomy 10/2017

04.04.2017 | Original Article

Three-dimensional morphometric analysis of the talus: implication for variations in kinematics of the subtalar joint

verfasst von: Shuhei Nozaki, Kota Watanabe, Masaki Katayose

Erschienen in: Surgical and Radiologic Anatomy | Ausgabe 10/2017

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Abstract

Purpose

Three-dimensional (3D) movement of the clinical subtalar joint (CSTJ) is primarily determined by the morphology of the articular surfaces of the talus. The purposes of this study were to assess the 3D orientation of the CSTJ facets of the talus and the talar head and to determine the tri-axial angular relationship.

Methods

Fifty dry tali were scanned using computed tomography to create a 3D bone model of the talus. The tri-axial angles of the anterior, middle, and posterior facets and the talar head were calculated. A correlation analysis between the angles of the posterior facet and the talar head was also performed.

Results

The transverse angle at both the posterior facet and the talar head was significantly correlated with the sagittal angle (r = −0.441, p < 0.001; and r = −0.694, p < 0.001, respectively). The sagittal angle of the posterior facet was significantly correlated with that of the talar head (r = 0.478, p < 0.001).

Conclusions

When the posterior facet of the talus and the talar head exhibits a greater downward and lesser medial orientation, a greater inversion/eversion at the CSTJ should be induced, while an opposite orientation should induce greater plantarflexion/dorsiflexion and medial/lateral rotation at the CSTJ. Our findings will be useful for planning rehabilitation programs and surgical interventions to correct the subtalar joint orientation in clinical settings.
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Metadaten
Titel
Three-dimensional morphometric analysis of the talus: implication for variations in kinematics of the subtalar joint
verfasst von
Shuhei Nozaki
Kota Watanabe
Masaki Katayose
Publikationsdatum
04.04.2017
Verlag
Springer Paris
Erschienen in
Surgical and Radiologic Anatomy / Ausgabe 10/2017
Print ISSN: 0930-1038
Elektronische ISSN: 1279-8517
DOI
https://doi.org/10.1007/s00276-017-1851-x

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