A stricture is an area of scar tissue that narrows the lumen (the hollow inside) of a tubular structure such as an intestine, ureter, or urethra. Since all surgery heals with scar tissue, it's not at all unusual for there to be some narrowing at the anastamosis (connection site) of two structures like a neo and the urethra. I'm sure that's taken into account in creating the openings that have to be attached together.
We've had a few members talk about strictures where the ureter connected to the neo requiring stents. I think I remember reading of one fellow who had a problem with stricture at the urethral connection, but I'm not sure since I suffer from CRS.
In any event, a stricture does not represent any form of rejection, but rather, overgrowth of scar tissue. Sleeper may even be describing scarring which completely obstructs the urethral connection to the neo. His situation differs from mine in that his scar is at a surgical connection. Mine is located in an otherwise healthy urethra. Since the penile urethra is quite flexible and mobile, it is possible to cut out the scar tissue and reattach the ends. If the stricture is too long, it can only be accomplished using a graft from the buccal mucosa (the lining of the cheek).
I don't know if a similar approach can be taken with this scar, but since the attempt to keep it open has failed, I would assume the only option is to remove the scar at the stie of anastamosis and at the end of the urethra and attempt to reattach them. Since I'm not a surgeon, I don't know if that's feasible or increases his chances of success.