Yep, they'll take bone from your hip and grind it into a paste adding some plasma, bone, medical stuff - or glue, as yous call it.
They'll remove the shitty ends of the non-union and grind back to clean bone, ready for regrowth. Put the paste in and sew you up.
Remember, the pin is already in there, holding things in place. You'll get more scars and a hip that doesn't like holding your pants up anymore ..................

BUT, you'll be able to swing your leg over anything or anyone.
AND, after all that, you'll be ready to break the next one.