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9 lis 2023 · Accessory ossicles of the feet are common developmental variants with almost 40 having been described. Some of the more common include 1-4: os peroneum. os subfibulare. os subtibiale. os tibiale externum (accessory navicular) os trigonum. os calcaneus secundaris. os calcanei accessorium 6.
- Os intercuneiforme
Epidemiology. It is a rare ossicle with an estimated...
- Os intercuneiforme
15 kwi 2024 · An accessory navicular is a large accessory ossicle that can be present adjacent to the medial side of the navicular bone. The tibialis posterior tendon often inserts with a broad attachment into the ossicle. Most cases are asymptomatic but in a small proportion, it may cause painful tendinosis due to traction between the ossicle and the navicular.
1 cze 2023 · The os tibiale of amphibians may persist in humans in the form of an os subtibiale or an os tibiale externum (hence this latin name for the accessory navicular). Accessory bones around metatarsals can be rudimentary remnants of a sixth or seventh ray as seen in the mesozoic polydactyl reptiles [14] .
An accessory navicular bone is an accessory bone of the foot that occasionally develops abnormally in front of the ankle towards the inside of the foot. This bone may be present in approximately 2-21% of the general population and is usually asymptomatic.
We report on a case series of five patients with accessory ossicles in the foot, consisting of four cases of os tibiale externum and one case of os peroneum (Table 2). Except for one patient (case 4), the accessory ossicles in the rest of the cases were asymptomatic and were incidental findings.
An os tibiale externum (or accessory navicular / os naviculare accessorium) is a large ossicle adjacent to the medial side of the navicular bone.
1 wrz 2020 · Das Os tibiale externum (akzessorisches Os naviculare, Prähallux) ist eine häufige Skelettvariation. Ein zweigeteiltes Os tibiale externum hingegen ist sehr selten und bislang nur in radiologischen Querschnittsstudien beschrieben.
