Contents

SynopsisCodesLook ForDiagnostic PearlsDifferential Diagnosis & PitfallsBest TestsManagement PearlsTherapyReferences
Hook of hamate fracture
Other Resources UpToDate PubMed

Hook of hamate fracture

Contributors: Derek T. Schloemann MD, MPHS, Danielle Wilbur MD
Other Resources UpToDate PubMed

Synopsis

Causes / typical injury mechanism: Hook of hamate fracture is a trauma injury or an overuse injury.

Classic history and presentation: Typical history includes either a direct blow to the hook of the hamate or repetitive microtrauma from gripping activities in athletes. This may also present as a chronic injury.

Prevalence: Hook of hamate fractures account for approximately 2%-4% of carpal fractures.

Risk factors: Recent trauma or participation in sports requiring gripping a racket or bat.

Pathophysiology: This fracture can be caused by a direct blow to the hypothenar eminence, repetitive microtrauma from gripping bats or rackets in athletes, or indirect shearing force from extrinsic flexor tendons of the ring and small fingers.

Grade / classification system: Hook of hamate fractures can be classified according to the anatomic location within the hook: base, waist, or avulsion, although this classification does not typically determine treatment or prognosis.

Codes

ICD10CM:
S62.156A – Nondisplaced fracture of hook process of hamate [unciform] bone, unspecified wrist, initial encounter for closed fracture

SNOMEDCT:
208369005 – Closed fracture hamate, hook

Look For

Subscription Required

Diagnostic Pearls

Subscription Required

Differential Diagnosis & Pitfalls

Best Tests

Subscription Required

Management Pearls

Subscription Required

Therapy

Subscription Required

References

Subscription Required

Last Reviewed:07/21/2021
Last Updated:07/27/2021
Copyright © 2022 VisualDx®. All rights reserved.
Hook of hamate fracture
Print  
Copyright © 2022 VisualDx®. All rights reserved.