BioMed Central isn't exactly JAMA or NEJM.........or anything remotely like them either. Did there need to be another study of Kirschner wire? The shit has been used since the turn of the last century and is used for pretty much anything that requires sticking 2 or more pieces of bone together. Farmers would call it baling wire.
The studies are pretty lame to begin with. They have about the same impact on medicine as university student has on a world of medicine.
$1:
The effect of drainage tube on bleeding and prognosis after total knee arthroplasty: a prospective cohort study
Bet all the orthopods couldn't wait to get their hands on that one.

I'd be worried about clicking on the link.