ISSN 2756-3316
African Journal of Medical Case Reports Vol. 3 (1), pp. 001-003, January, 2015. © International Scholars Journals
Case Report
Acute fracture of OS trigonum wıth cartilaginous articulation
Bekir Yavuz Uçar1*, Demet Uçar2, Mehtap Bozkurt2, Mehmet Bulut1 and Ibrahim Azboy1
1Dicle University Medical School Department of Orthopaedics and Traumatology, 21280 Diyarbakır, Turkey.
2Diyarbakır Education Research Hospital Clinical Of Physical Medicine and Rehabilitation, Turkey.
Accepted 12 November, 2014
Abstract
Os trigonum as one of the most common accessory ossicles of foot, may have a fibrocartilaginous articulation with posterior process of talus. This articulation may be misdiagnosed as a fracture of the posterior process of talus. Despite well known chronic injuries of athletes, acute fracture of the os trigonum is rare. Hyperplantarflexion and invertion of the ankle is the mechanism of injury. We report a case of an acute fracture of the os trigonum with a fibrocartilaginous articulation diagnosed with computerized tomography which highlights the importance of considering such injuries in patients with acute posterior ankle pain and ‘nut cracker’ sign positivity and obtaining advanced imaging modalities in ankle sprains.
Key words: Os trigonum, talus, fracture, ankle sprain, accessory ossicle, foot.