Hi there.
It seems that your bursitis is indeed severe noting its resistance to standard steroid injections,
medications, and physical therapy. I agree that a surgical option may be entertained, but this too will not
guarantee eradication of the pain.
I believe that the TENS and the upcoming PT sessions would still be beneficial, but the effects may still only
be temporary.
I suggest discussing with your doctors regarding an operative approach and hopefully come up with a definitive
plan.
Regards and God bless.