The effect of drill hole location on load bearing capacity of long bones.
biomechanical · Level V
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- Record sourced from PubMed, PMID 29556114.
- Also identified by DOI 10.1016/j.jor.2018.02.015 and PMC identifier 5856676.
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Abstract
We investigated how load bearing capacity (LBC) of long bone differs with a bicortical drill hole in a compressive/tensile location vs. a neutral location. Group I had a hole drilled through 0°/180° ([compressive at 0°/maximum tensile at 180°]), Group II at 90°/270° ([neutral]), and Group III at 135°/315° ([tensile at 135°/compressive at 315°]). Maximum load at failure and stiffness was measured. A significant ([<i>p </i>< 0.05]) decrease in LBC of all Group I and Group III bones was observed. Loss of strength for Group II was statistically insignificant ([<i>p </i>> 0.05]). Changes in stiffness for both tibias and fibulas was not statistically significant ([<i>p ></i> 0.05]).