AI Article Synopsis

  • Fractures of the hamate hook are often seen as a result of direct injury, but they may actually be caused by repeated stress from nearby tendons.
  • The repetitive loading can lead to fatigue in the bone, which can cause weakening and change in its structure.
  • Reduced blood flow due to tendon pressure can worsen the situation, making injuries more likely, especially in activities involving frequent gripping.

Article Abstract

Fractures of the hook of the hamate are traditionally thought to be caused by direct trauma. A review of the anatomy and function of the hamate hook suggests that fracture is more likely as a result of a fatigue response that develops in the hook from repetitive load applied by the adjacent deep flexor tendons. Additional vascular compromise, from direct pressure of the tendons on critical local vessels, reduces blood flow leading to both mechanical and vascular effects that create pathological osseous change and weakening. These changes are likely to predispose to stress fracture and nonunion in repetitive gripping activities and are consistent with radiological findings.

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Source
http://dx.doi.org/10.1177/17531934241235803DOI Listing

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