Bob,
I do not know the type of injury you have but if it's like mine was, read this.
As an avid tennis player, I too dealt with pain & difficulties due to tennis elbow. I'd not use my arm for any grabbing & puling for a week. When the pain lessoned somewhat, I would go out & play tennis. Then another week of pain. I didn't opt for any surgery for my condition but, did find a simple device that cured it for me.
There are plenty of elbow sleeves on the market. Medical supply stores may have some with internal ribs. My last one was an ACE that was a two attachment. You have one end that wraps around the arm above the elbow & one end that wraps around the forearm where the injured tendon is located. It also allows for easy bending of the elbow. Don't need to make the top part real tight just enough to keep it in place. This two ended style is what you should try.
There are numerous makers of this. I did try the one piece that only wraps around below the elbow but is just squeezing in one small area & restricts blood flow.
There are no blood vessels in tendons that's why they take long to heal. The one piece long all-compression supports don't work, as they also inhibit blood flow thru the whole area & make your elbow weaker when worn for a period of time.
Use the it when your having to do physical activities & gripping. I have lent my supports to friends & they have helped cure them. Try to find the type with internal rib. It's been 20 years since I first injured it & at times I feel still feel it & on comes the brace. Wear it on & off thru the day, not constantly if you can.
Here's a site for medical information pal:
http://www.webmd.com/osteoarthritis/guide/tennis-elbow
CR