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

Yosidnori Miyasaka, Minoru Sakurai, 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 Jan 1

    Keywords

    • Long bone injuries
    • Spiral fracture
    • Transverse fracture

    ASJC Scopus subject areas

    • Biomaterials
    • Biomedical Engineering

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