Mike in Va,
I'd forgotten that you had specific incident, so surgery may be good for you.
You and Albert both misunderstood my words. Many people seem to think a posterior pelvic tilt (or butt-in), like "The Hulk" superhero character is the ideal manly build, as opposed an anterior tilt (butt-out).
I'm guessing that the current generation, very "image" conscious as opposed to "action" conscious, see that because women in general have an even more pronounced anterior tilt (more butt-out) than men, they somehow conclude that posterior tilt (butt-in) is more perfect form.
But of course they are dead wrong. The finest athletes in the world almost always have a anterior tilt (butt-out). The best football players, soccer players, sprinters, you name it.
Yet the image persists in a generation of TV watchers, guys in the gym wanting to fit that he-man image of The Hulk, or Rambo, or GI Joe or something, not from real life, but from the cartoonists mind. So fitness websites still teach, "get rid of anterior pelvic tilt", so you can look more like Rambo.
In other words, JCSportsman, if you've been following PT that tries to eliminate your anterior pelvic tilt (butt-out), then I think those exercises could be responsible for your troubles today. But I'll admit, I could be wrong.
I say all this because last summer I had begun doing a little drill before each basketball game. I thought to myself, I want to be able to move the ball as low as possible (very low dribble, only 1 ft off the ground) and as quickly down the court as possible (running). I also thought to myself, Since I'm running so fast in such a bent over angle, I should really tuck my butt in to keep from getting a sore back. (Little did I know!)
I did that little 1 minute drill as part of my warmup for every session of basketball for about 3 months, no problems. Not long afterwards I came down with sports hernia.
But now that I have SH, in the last few days I've experimented, and by tucking my butt in when I walk, it instantly makes my groin pain worse. But by filling my lungs and putting my shoulders back when I walk, it puts my butt out a little bit, my back has a good little arch, and and the groin pain with each step stops immediately.
When I played football in high school our main running back was so good that he was honored as Florida's top all-state running back. He had a pronounced anterior tilt (butt-out), and was very, very fast and powerful. The ultimate athlete. He was built nothing like "The Hulk".
The myth going around sports hernia threads that one should do exercises to eliminate anterior tilt (eliminate butt-out) is exactly wrong. Instead such exercises might be the cause of sports hernia.