Accessory ossicles of the foot
Last revised by Mohammad Taghi Niknejad on 9 Nov 2023
Citation, DOI, disclosures and article data
Citation:
Bashir U, Niknejad M, Rasuli B, et al. Accessory ossicles of the foot. Reference article, Radiopaedia.org (Accessed on 03 Dec 2023) https://doi.org/10.53347/rID-18879
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rID:
18879
Article created:
26 Jul 2012, Usman Bashir
Disclosures:
At the time the article was created Usman Bashir had no recorded disclosures.
View Usman Bashir's current disclosuresLast revised:
9 Nov 2023, Mohammad Taghi Niknejad ◉
Disclosures:
At the time the article was last revised Mohammad Taghi Niknejad had no financial relationships to ineligible companies to disclose.
View Mohammad Taghi Niknejad's current disclosuresRevisions:
27 times, by 10 contributors - see full revision history and disclosures
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Sections:
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Synonyms:
- Secondary ossification centers of the foot
- Accessory ossicles of feet
- Accessory ossicles of foot
- Accessory ossicles of the feet
- Accessory tarsal bones
- Accessory tarsal ossicles
- Supernumerary tarsal bone
- Supernumerary ossicles of foot
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 intermetatarseum
- pars peronea metatarsalis primi (pars peronea metatarsalia)
- os supratalare
- bipartite hallux sesamoid
- os supranaviculare
- os infranaviculare (cuneonavicular ossicle) 5
- os intercuneiforme
- os vesalianum pedis
- os sustentaculi
- os subcalcis
- os cuboideum secundarium
- os talotibiale
- os paracuneiforme
- os aponeurosis plantaris
- os cuneometatarsale plantare
- os talus secundarius
- os cuneometatarsale I tibiale
- os cuneo–I metatarsale-II dorsale
Knowledge of their presence is helpful so that they are not misdiagnosed as fractures.
Quiz questions
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References
- 1. Theodore Eliot Keats, Mark W. Anderson. Atlas of Normal Roentgen Variants That May Simulate Disease. (2007) ISBN: 9780323043007 - Google Books
- 2. Coskun N, Yuksel M, Cevener M et al. Incidence of Accessory Ossicles and Sesamoid Bones in the Feet: A Radiographic Study of the Turkish Subjects. Surg Radiol Anat. 2009;31(1):19-24. doi:10.1007/s00276-008-0383-9 - Pubmed
- 3. Kalantari BN, Seeger LL, Motamedi K, Chow K. Accessory ossicles and sesamoid bones: Spectrum of pathology and imaging evaluation. Appl Radiol. 2007;36(10):28-37. Appl Radiol (full text)
- 4. Thomas H. Berquist. Imaging of the Foot and Ankle. (2011) ISBN: 9781605475721 - Google Books
- 5. Robert Christman. Foot and Ankle Radiology. (2014) ISBN: 9781496304391 - Google Books
- 6. Keles-Celik N, Kose O, Sekerci R, Aytac G, Turan A, Güler F. Accessory Ossicles of the Foot and Ankle: Disorders and a Review of the Literature. Cureus. 2017;9(11):e1881. doi:10.7759/cureus.1881 - Pubmed
Incoming Links
Articles:
- Bipartite medial cuneiform
- Os intercuneiforme
- Ankle radiograph (an approach)
- Os supranaviculare
- Os vesalianum pedis
- Foot radiograph (checklist)
- Os talotibiale
- Accessory ossicles
- Fibula
- Os subtibiale
- Os sustentaculi
- Os intermetatarseum
- Pars peronea metatarsalis primi
- Accessory ossicles of the lower limb
- Os cuboideum secundarium
Cases:
- Os supranaviculare
- Os intermetatarseum and os calcaneus secundarius
- Os vesalianum pedis
- Polymetatarsia without polydactyly
- Os subtibiale
- Accessory ossicles of the foot (illustration)
- Accessory bones of the foot - os tibiale externum and os peroneum
- Unfused secondary ossification centre of the medial malleolus
- Os intermetatarseum
- Os subfibulare
- Interphalangeal joint sesamoid of great toe
- Os calcaneus secundarius
- Os supratalare
- Os subtibiale
- Exostosis of the talus
- Os calcaneus secundarius
- Os infranaviculare
- Os subfibulare
- Os tibiale externum
- Accessory navicular bone - Geist classification
Multiple choice questions:
Related articles: Anatomy: Lower limb
- skeleton of the lower limb
- joints of the lower limb
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hip joint
- ligaments
- muscles
- additional structures
- hip joint capsule
- zona orbicularis
- iliotibial band
-
hip bursae
- anterior
- iliopsoas bursa (iliopectineal bursa)
- lateral
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- greater trochanteric bursa (subgluteus maximus bursa)
- subgluteus medius bursa
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knee joint
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posterolateral ligamentous complex
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ankle joint
- regional anatomy
- medial ankle
- lateral ankle
- anterior ankle
- ligaments
- medial collateral (deltoid) ligament
- lateral collateral ligament
- additional structures
- ankle bursae
- ossification centers of the ankle
- variants
- regional anatomy
- foot joints
- subtalar joint
- mid-tarsal (Chopart) joint
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tarsometatarsal (Lisfranc) joint
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- intermetatarsal joint
- metatarsophalangeal joint
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hip joint
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muscles of the lower limb
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- 1st layer
- 2nd layer
- 3rd layer
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accessory muscles of the ankle
- accessory peroneal muscles
- accessory flexor digitorum longus muscle
- accessory soleus muscle
- peroneocalcaneus internus muscle
- tibiocalcaneus internus muscle
- extensor hallucis capsularis tendon
- anterior fibulocalcaneus muscle
- accessory extensor digiti secundus muscle
- tibioastragalus anticus of Gruber muscle
- vascular supply of the lower limb
- arterial supply of the lower limb
- venous drainage of the lower limb
- innervation of the lower limb
- lymphatic system of the lower limb
- lymphatic pathways
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