Have you tried rehabbing your shoulders through excercising with
light weights?
I had some serious problems myself, especially in my right shoulder
which started from throwing baseballs...and then got worse over the
years via weightlifting.
A friend of mine showed me some excercises that I do every day with
15lb weights. Extending both arms out to the sides, up and down,
extending to the front and also doing a round-about excercise where
I extend the arms forward, then move to the side, rotate my hands and
the weights and return the arms to the sides.
These excercises have worked WONDERS! It takes a few months of
doing them to get the benefits, but all of a sudden you wake up and
the pain is gone. Start with small weights like 5 or 10 lbs and work up
from there. I do 3 sets of 10 on each excercise.
Rehab beats surgery any day. These excercises strengthen the area
around the impingements and tears, and take the pressure off of those
areas. Believe it or not it works!
Too many people have told me about shoulder surgerys that have
gone wrong and caused more problems.... My closest friend's
brother had serious problems after his rotator cuff surgery.
Rest and inactivity are not
your friends with the rotator cuff...you have to attack the problem by
strengthening the area first.
Get a second opinion from a doctor
regarding the surgery...and see if you
can rehab it first! Maybe you can if you do it light.
Here are some links
http://familydoctor.org/265.xml
http://www.webmd.com/a-to-z-guides/Rotator-cuff-home-rehabilitation-exercises#ue4831
http://www.bodybuilding.com/fun/criticalbench24.htm