Butterflied fractures

Below are X-rays of my tibias at different stages post implantation of the PRECICE 2.2. As you can see in the first image (zoom in if you need to), the bone break is far from a clean cut - there's a triangular bone chip. Definitely not what I expected to see.

When I asked Dr. Robbins (Paley's colleague) about this in April, he said it's actually a new bone breaking technique, designed to increase the bone surface around the break, for increased bone generation. However, this is at odds with Paley describing how to avoid butterfly in his January talk ("I guarantee that there's no butterfly").

Thoughts?

Quote from: LLprime2 on May 14, 2018, 10:24:45 PMI always wonder how the bones that are not aligned will grow together. Will it look like this?

Not quite.

Since the bone segments get farther and farther from each other, the ensuing gap becomes more and more "vertical" (in the typical x-ray orientation). Here's how that gap looked on June 8 (7 weeks of lengthening the tibias, 4 weeks since stopping lengthening):