I found an article that is a good overview of the kind of urethral stricture repair called “urethroplasty.” It’s a bit difficult to briefly and easily explain urethroplasty because it is actually more of a class of surgeries rather than one type of procedure. It’s a bit like saying “open-heart surgery.” Actually, it’s a lot like saying that because it is, in fact, “open-penis surgery.”
That is opposed to the scope-assisted surgeries that do their business without cutting the penis open. They go either up the urethra (most common) or both up and down (from a suprapubic opening, then through the bladder) the urethra. these are called urethrotomies, and are typically not as successful long-term as urethroplasty.
Read the full article here (from the University of California, Irvine): https://www.centerforreconstructiveurology.org/urethral-stricture/open-repair-urethroplasty.htm