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Related Experiment Videos

Trapezoid bone fracture.

T Miyawaki1, M Kobayashi, S Matsuura

  • 1Department of Plastic and Reconstructive Surgery, Jikei University School of Medicine, Tokyo, Japan.

Annals of Plastic Surgery
|April 27, 2000
PubMed
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Trapezoid bone fractures are rare carpal injuries. This case study highlights a unique isolated trapezoid fracture, diagnosed via carpal tomogram, likely caused by excessive wrist flexion stress.

Area of Science:

  • Orthopedic Surgery
  • Radiology
  • Anatomy

Background:

  • Carpal bone fractures are common, but isolated trapezoid fractures are exceptionally rare due to strong ligamentous fixation.
  • The trapezoid bone's stability is maintained by its connections to the trapezium, capitate, and scaphoid bones.

Observation:

  • A case report details an isolated fracture of the trapezoid bone in a 40-year-old male patient.
  • Diagnostic imaging utilized a carpal bone tomogram, proving effective in identifying the subtle fracture.

Findings:

  • The study presents a rare instance of a solitary trapezoid bone fracture.
  • The proposed mechanism involves indirect excessive wrist flexion stress transmitted through the second metacarpal bone.

Implications:

Related Experiment Videos

  • This case expands the understanding of potential carpal bone injury patterns.
  • Highlights the diagnostic utility of tomograms for rare carpal fractures.
  • Suggests a novel mechanism for isolated trapezoid fractures, distinct from typical carpal trauma.