Many thanks for this response.

I do understand exactly what you are saying, I just feel anxious that an apparent acute injury ( Wikipedia reference-linkMRI scan confirms) that is giving me no pain or problems at the moment is now going to cause me to have invasive surgery. Having 100% ROM and spending the last 12 months doing intensive pilates to improve my overall athletic performance I'm really worried that I'm going to land up with a permanent "frozen " shoulder or the like!

I will be in an abduction sling with cushion.

I am very good at following "intense" physio protocols, my worry is I am fit but 55 years old and inactivity is not good for me physically or mentally.

The problem is that the surgeon adopts the same protocol with ALL her shoulder patients regardless of age as she feels that it has the best outcome. She admits that the most of her patients are elderely and certainly not runners .

I have asked lots of questions and had them well answered, the problem is if it doesn't work out, I go into an operation fit and well and come out with a problematic shoulder.