The Journal of Bone and Joint Surgery, Vol 59, Issue 2 213-217, Copyright © 1977 by Journal of Bone and Joint Surgery, Inc
The effect of biopsy-hole shape and size on bone strength
CR Clark, C Morgan, DA Sonstegard and LS Matthews
Investigation in cadaver femora of the relationship between the shape or
size of a hole made in the cortex and the breaking strength of the bone
revealed that of the shapes studied, an oblong hole with rounded ends
afforded the greatest residual strength. Furthermore, we found that
increasing the width of the hole caused a significant reduction in
strength, while increasing the length did not.