Hello mere Mortals... 
To my knowledge and experience, most Rotator Cuff injuries are caused by a single traumatic event.

I had the surgery on both shoulders. The first was "Open" Surgery; the second was Arthroscopic surgery.
OPEN SURGERY: 
On my first event, I fell 12' off a deck, landed on my shoulder and got knocked out for 'bout 1-2 minutes.
That night I ended up at the ER where the X-Ray clearly showed severe trauma. To add REAL PAIN to pain,
because of the seriousness of the injury, they could not operate for a full five months (WTF!).

???
For those 5 months prior to surgery I had to sleep on a wood Patio chair, seating upright with a seat belt contraption.

Nothing else would help bare the pain.

Right after OPEN surgery, take no prisoners... demand Morphine even if pain is not apparent. You will thank me for this tip. I bet you would!

All in all, the most painful period was during the after-surgery-therapy. I went twice for therapy but found every excuse not to go back.

So I finally regained full rotation capabilities in 'bout another 6 months. It's now been 15 years and the function is back 100%.
ARTHROSCOPIC SURGERY LAST YEAR: 
I tried removing a box from a top shelf. When it shifted to my extended arm/hand; it's weight was three times what I anticipated
and so you know this drill... a pretty common occurrence.

This surgery was done last year. Indeed, by comparison with the first, this surgery was enjoyable.

The shoulder was 70% functional within 3 weeks. Went to "therapy" (NOT!) and it has healed as good as it will get.
SUMMARY:If the damage requires only arthroscopic surgery, thank God and go for it. If it requires open surgery, hang on to God,
then get ready for the advanced emotions.
PAIN LEVEL RATINGS FROM WORSE TO JUST FREAKIN' BAD...WORSE to Milder: 
0. Admitting that you are wrong... 'bout everything!
1. Child Bearing... ask your mother.
2. Gull Bladder Attack - OMG!
3. Viagra OD... after 6 Hours! (Hope for a friendly health care professional.)

4. Severe Rotator Cuff injuries
5. Tit gets caught on the wringer...
ROTATOR CUFF... Whatever the next 5 months will bring, the rotator cuff in itself will not be anybody's cause of death... although I could be wrong.

Be good to yourself!

"If I'd known I was going to live this long, I would have taken better care of myself!"
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