Bending and torsion fractures in long bones (a mechanical and radiologic assessment of clinical cases)

Yosidnori Miyasaka, Minoru Sakurai, A. Toshimitsu Yokobori, Sumio Kuroda, Masamizu Ohyama

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Long bone injuries in clinical cases are studied by comparison of roentgenograms with a rational mechanical analysis of the injuries. Fractures produced by torsional loads have a spiralshape with a smooth and even surface. Fractures induced by bending loads have uneven and rugged fracture surfaces perpendicular to the bone axis. Long bones are weak in torsion but strong in tensile stress produced by bending. This result corresponds to the clinical fact that a large directexternal force is needed to produce a transverse fracture while a spiral fracture is produced by a relati vel y small torque.

Original languageEnglish
Pages (from-to)3-10
Number of pages8
JournalBio-medical materials and engineering
Volume1
Issue number1
DOIs
Publication statusPublished - 1991
Externally publishedYes

Keywords

  • Long bone injuries
  • Spiral fracture
  • Transverse fracture

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering

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