Portal de Periódicos da CAPES

A Comprehensive Study of the Anatomical Variations of the Posterolateral Tubercle of Talus

2021; Chilean Society of Anatomy; Volume: 39; Issue: 3 Linguagem: Inglês

10.4067/s0717-95022021000300858

0717-9502

Heba Kalbouneh, Mohammad Alsalem, Maysoon A-R. Banihani, Hamzeh Alhusamiah, Yazan Momani, Talal Massad, Tamer S. Barakat, Omar Alajoulin,

Sports injuries and prevention

The aim of our study was to determine the prevalence and the anatomical variations of the posterolateral tubercle of talus in relation to sex on CT imaging. A total of 1478 ankle CT scans was retrospectively reviewed for the different anatomical variants of the posterolateral tubercle of talus, the type and size of os trigonum. Normal sized lateral tubercle was found in 46.1 %, an enlarged posterolateral tubercle (Stieda's process) in 26.1 %, os trigonum in 20.5 % and almost absent tubercle in 7.3 %. A statistically higher prevalence of Stieda's process was found in males while os trigonum was higher in females (p 0.05). The posterolateral tubercle of talus and its accessory ossicle, the os trigonum, could vary morphologically. The data of this study could be helpful in understanding the clinical problems that could be associated with some of these variants.