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The effect of drill hole location on load bearing capacity of long bones
Christopher James Yiachos1, Subrata Saha1,2,3
1Department of Orthopedic Surgery and Rehabilitation Medicine, SUNY Downstate Medical Center, 450 Clarkson Avenue, Brooklyn, NY 11203, United States.
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 ([p < 0.05]) decrease in LBC of all Group I and Group III bones was observed. Loss of strength for Group II was statistically insignificant ([p > 0.05]). Changes in stiffness for both tibias and fibulas was not statistically significant ([p > 0.05]).
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