Task: Answer Verification
Input (English): Question: Does predrilling improve the pullout strength of external fixator pins : a biomechanical study?
Answer: Single-cortex pin placement, osteoporotic bone, and more distal pin location decreased pin pullout strength. We did not observe a significant mechanical advantage of predrilling for modern external fixator pins. The near cortex of a pin inserted into 2 cortices without predrilling did not exhibit substantial stripping effect.
Output (English): no