Nail size and medical risks

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Hi,

I was wondering currently about the differences in nail size and how it could relate to medical risks. Some of them may be:
1. Fat embolism
2. Bone breakage
3. Bone healing

I know stryde is off the market, but I will use it as an example. From a paper from Paley (https://paleyinstitute.org/wp-content/uploads/Stryde-Weight-bearing-Internal-Lengthening-Nail.pdf),
The Stryde nail comes in 10, 11.5, and 13 mm diameters, with 5, 6.5, and 8 cm lengthening stroke corresponding to minimal lengths of 235, 250, and 265 mm. The 8 cm stroke nail is available in longer lengths (280, 305, 335, and 365 mm).

Theoretically, the smallest nail (10mm/235mm) would be (5^2 x 235)/(6.5^2 x 285) = 0.488 in volume compared with 13mm 8cm stroke nail.

Would this imply 1) less reaming and 2) less displacement of marrow and 3) less pressure in the intramedullary canal and 4) increased reduction of bone thickness and hence lower risk of fracture?

I am going for a conservative 5cm and am a rather lightweght individual, so I was interested in seeing whether my nail choice could derisk some of the medical risks.

Edit Post

Apologies, should be 265 in above denominator.