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The posterior talocalcaneal ligament: an MRI evaluation

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Abstract

Purpose

A wide inter-individual variability in terms of size, orientation and insertion is observed regarding ankle ligaments. The aim of this study is to identify and describe the anatomical features of the posterior talocalcaneal ligament (PTCL) observed through the use of magnetic resonance imaging (MRI) of the ankle.

Methods

The study was retrospectively carried out on 893 ankle MRI’s exams. The exams have all been performed using a 1.5-T (T) MRI. The same scanning protocols and scan planes were carried out in all the exams. The first evaluated parameter was the recognition of the PTCL. Subsequently, in all those cases where the ligament was present, its features such as insertion sites, length, and thickness were evaluated.

Results

The PTCL identification was possible in 77 exams (8.6% of the total number). Among these, we were able to identify some variants regarding insertion sites, length, and thickness. The PTCL could be further classified into four categories based on the most common characteristics observed.

Conclusions

Our study has identified different characteristics of the PTCL that allow us to further understand the characteristics of the ligament itself. In conclusion, the need for further studies focused on the biomechanical role of the PTCL in the ankle joint appears mandatory.

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Authors and Affiliations

Authors

Contributions

Idealization: AI; Data Collection: AI and RF; Data Analysis: AI and AP; Project Development: AP, RF and GM; Writing and editing: ET and RF.

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Correspondence to Ewan Thomas.

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No. 1/2020-15.01.2020 of the University ethical committee.

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The authors declare that they have no conflict of interest.

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Iovane, A., Palma, A., Messina, G. et al. The posterior talocalcaneal ligament: an MRI evaluation. Surg Radiol Anat 42, 1167–1174 (2020). https://doi.org/10.1007/s00276-020-02506-7

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  • DOI: https://doi.org/10.1007/s00276-020-02506-7

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