Accessory ossicles of the foot

Dr Henry Knipe and Dr Usman Bashir et al.

Accessory ossicles of the feet are common developmental variants with almost 40 having been described. Some of the more common include 1-4:

Knowledge of their presence is helpful so that they are not misdiagnosed as fractures.

Anatomy: Lower limb
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Article information

rID: 18879
Section: Anatomy
Synonyms or Alternate Spellings:
  • Secondary ossification centers of the foot
  • Accessory ossicles of feet
  • Accessory ossicles of foot
  • Accessory ossicles of the feet

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Cases and figures

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    Figure 1: common accessory ossicles
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    Figure 2: common accessory ossicles
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    Case 1: os tibiale externum (accessory navicular)
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    Os peroneum
    Case 2: os peroneum
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    Case 3: os trigonum
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    Case 4: os subfibulare
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    Case 5: os supranaviculare
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    Case 6: os infranaviculare
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