os trigonum


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os tri·go·num

[TA]
an independent ossicle sometimes present in the tarsus; usually it forms part of the talus, constituting the lateral tubercle of the posterior process.
Synonym(s): triangular bone

os trigonum

[os′trigō′nəm]
a small foot bone just posterior to the talus. It is sometimes confused with a fracture of the posterior tubercle of the talus. Also called Bardeleben's bone.

os tri·go·num

(os trī-gō'nŭm) [TA]
An independent ossicle sometimes present in the tarsus; usually it forms part of the talus, constituting the lateral tubercle of the posterior process.
Synonym(s): triangular bone.

os trigonum

triangular accessory ossicle (fused to or separate from centre of posterior margin of talus/superior angle of calcaneum), formed as non-union of a separate centre of ossification; an enlarged, fully calcified os trigonum may cause posterior heel pain, as it prevents end-range ankle joint plantarflexion
References in periodicals archive ?
Specific findings during the surgeries included three cases of a duplicate os trigonum and three cases of a tendon ganglion of the FHL.
An os trigonum is a small bony ossicle located posterior to the talus.
Sol ayak bilegi lateral radyografisinde os trigonum goruldu (Sekil 1).
The posterior-ankle impingement due to os trigonum can develop after disruption of the os trigonum through a significant acute injury (for example, fracture, fragmentation, and/or pseudoarthrosis).
The diagnosis of PAIS or FHL tendinopathy was made on the basis of the history and physical examination, with reproduction of the typical pain in forceful plantar flexion or on palpation of the os trigonum (if present) or the FHL tendon.
An os trigonum is usually round or oval with well-defined corticated margins, whereas a fracture of the lateral tubercle typically has irregular serrated margins between the fragment and the posterior talus.
ankle, talo-crural, talus, os trigonum, Stieda's process, flexor hallucis longus), type of injury (primarily ankle impingement, tendinitis, tendinopathy, Shepherd's fracture, and trigger toe), and type of activity (dance).
The present study reports the clinical results of excision of a symptomatic os trigonum using an endoscopic procedure in professional ballet dancers.
It started out as tendonitis but after a medical exam I was diagnosed with Os Trigonum Syndrome.
The differential diagnosis of posterior ankle pain is peroneal tendon subluxation, posterior impingement syndrome with painful os trigonum or trigonal process, posterior talus osteochondritis dissecans, flexor hallucis longus tendinopathy, and posterior tibial tendinopathy.
Secondary problems Lastly, there are several conditions, such as FHL tendonitis ("dancer's tendonitis") and the os trigonum syndrome that seem to pop up out of nowhere.
The role of magnetic resonance imaging in the diagnosis of the os trigonum syndrome.