Are open-ended vasectomies less likely to cause post-vasectomy pain than closed vasectomies?
I have found https://www.vasectomy.com/question/is-open-testicular-end-vasectomy-better-11304:
This is debatable. There is slightly less chance of post vasectomy pain syndrome, but slightly greater risk of failed vasectomy. It is a discussion I often have in my office with my patients.
but no evidence is given.