nail bending- monorail, retrograde vs precise/antegrade

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https://www.instagram.com/p/B6VzirTBVOK/?igshid=1mld2hhr6dg0l

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https://www.instagram.com/p/CKrU2BDJLTO/?igshid=1r8ui2sg0t082
(thumbnail shows a bit of the xray)

https://www.instagram.com/s/aGlnaGxpZ2h0OjE4MTE4MzMxODg0MDU0MzM1?igshid=1adlhusgkku9m&story_media_id=2505290193983496739_18096188867

The bend could be coz of multiple reasons:

1. nail being not too rigid- plasticity
2. its a monorail
3. retorgrade nailing? the femurs and the tibias have a slight curve close to the knee. therefore driving the nail along a curve path bending the inital alignment itself. I have seen such issues on inistal distraction to as much as large distractions.


I havent seen a precise 2 or stryde bend, I have seen few other nails bend even on antegrade femur insertion.

How much of a factor could retrograde nailing or doing LON with monorails contribute to the bending?

Edit Post

Now i strongly feel most of the bending happen in retrograde or internal tibias. Although no medical literature that I could find on that.

May this could be opposed if we have had an antegrade femur nailing that has curved. Do we?