Os Hamuli Proprium

Description

Os hamuli proprium is marked with yellow arrow on this axial cut of the wrist. Note the smooth, rounded margins of both the os and the adjacent hamate

Name

• Os Hamuli Proprium
• Unfused hamulus

General

• Accessory ossicle of the wrist
• Failure of the hook secondary ossification center to fuse with the hamate
• Can be difficult to distinguish from a fracture of the hook of hamate
• Bilateral images can help make that distinction

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Clinical Significance

• Needs to be updated

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See Also

• Hand And Wrist Anatomy
• Physical Exam Hand
• Wrist Pain Main

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