ANTHROP 3FA3 Lecture Notes - Lecture 12: Greenstick Fracture, Vitamin D Deficiency, Spiral Fracture
14 Sep 2016
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Document Summary
Compression: force is being applied to 2 sides of the bone, typically crushing fractures appear. Torsion (twist: forces moving in opposite directions, twisting around the central axis of the bone, curved fracture. Tension (pulling: severe force being applied in one direction. Shearing (sliding: force is being applied on a diagonal between the 2 parts of the bone. Can be caused by: acute injury, repetitive stress. Fatigue or stress fractures: underlying disease/congenital condition. Complete fractures: the break goes all the way through the bone, transverse fracture. Force applied perpendicular to the shaft: oblique fracture. Combination of compression and angulation/torsion force: spiral fracture. Associated with rotational forces: comminuted fracture. Metals are used to stabilize the fragments in their original position. Usually occurs due to a crushing force applied to the bone: epiphyseal fracture. Characteristic fractures that occurs at the growing ends of the long bone. A fracture occurs across the growth plate: butterfly fracture.
