Logo Medical Science Monitor

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo Medical Science Monitor Logo Medical Science Monitor Logo Medical Science Monitor

22 February 2019 : Clinical Research  

Implications of Classification of Os Trigonum: A Study Based on Computed Tomography Three-Dimensional Imaging

Xiaoyong Fu1ABC, Li Ma2CD, Yan Zeng3DE, Qizhou He4DE, Fei Yu4D, Lin Ren4F, Bei Luo5E, Shijie Fu67DE, Lei Zhang678EFG*

DOI: 10.12659/MSM.914485

Med Sci Monit 2019; 25:1423-1428


BACKGROUND: The os trigonum is an accessory bone that is not fully fused with the talus during secondary ossification, and is one of the risk factors of posterior malleolus impact syndrome. The purpose of this study was to classify the os trigonum and to guide the diagnosis and treatment of related clinical diseases.

MATERIAL AND METHODS: Ankle computed tomography (CT) scans of 586 Chinese patients between October 2014 and October 2018 were reviewed. CT images of 1011 ankle joints were reconstructed to evaluate the classification of the os trigonum and the measurement of anatomical parameters.

RESULTS: The incidences of os trigonum in 3 groups were determined as type I (1.9%), type II (10.5%), and type III (14.7%). The macro-axis of type II (0.89±0.31) cm was significantly larger than with type I (0.65±0.24 cm) and type III (0.74±0.23 cm) (p<0.05).The minor axis of similar of type I (0.41±0.23 cm) was significantly shorter than that of type II (0.58±0.32 cm) and type III (0.55±0.16 cm) (p<0.05).The distance from os trigonum to calcaneal tubercle was significantly different than that of type I (1.33±0.52 cm), type II (1.67±0.55 cm), and type III (1.84±0.45 cm) (p<0.05).

CONCLUSIONS: This study showed that os trigonum has a high incidence. Type I was the least common, the volume of type II was larger, and type III was more common. The anatomical parameters of each type may improve treatment of related diseases and the further development of ankle arthroscopic surgery.

Keywords: Ankle, Models, Anatomic, Talus, Adolescent, Aged, 80 and over, Ankle Joint, Imaging, Three-Dimensional, Tomography, X-Ray Computed

Add Comment 0 Comments


01 May 2024 : Editorial  

Editorial: First Regulatory Approval for Adoptive Cell Therapy with Autologous Tumor-Infiltrating Lymphocytes (TILs) – Lifileucel (Amtagvi)

Dinah V. Parums

DOI: 10.12659/MSM.944927

Med Sci Monit 2024; 30:e944927

In Press

Animal Research  

Enhanced Bone Healing Through Systemic Capsaicin Administration: An Experimental Study on Wistar Rats

Med Sci Monit In Press; DOI: 10.12659/MSM.942485  


Clinical Research  

Differential Inflammatory Responses in Adult and Pediatric COVID-19 Patients: Implications for Long-Term Co...

Med Sci Monit In Press; DOI: 10.12659/MSM.944052  

Clinical Research  

Effectiveness of Shoulder Taping in Treating Hemiplegic Shoulder Subluxation: A Randomized Controlled Study...

Med Sci Monit In Press; DOI: 10.12659/MSM.944222  

Clinical Research  

Comparison of Fentanyl, Ketamine, and Lidocaine Combined with Propofol Anesthesia in Patients with Crohn Di...

Med Sci Monit In Press; DOI: 10.12659/MSM.944116  

Most Viewed Current Articles

17 Jan 2024 : Review article  

Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron Variant

DOI :10.12659/MSM.942799

Med Sci Monit 2024; 30:e942799


14 Dec 2022 : Clinical Research  

Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase Levels

DOI :10.12659/MSM.937990

Med Sci Monit 2022; 28:e937990


16 May 2023 : Clinical Research  

Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...

DOI :10.12659/MSM.940387

Med Sci Monit 2023; 29:e940387


01 Jan 2022 : Editorial  

Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...

DOI :10.12659/MSM.935952

Med Sci Monit 2022; 28:e935952


Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750