Tennis elbow can be helped alot just by chiropractic adjustments and then maybe ART if need be.
Now if you have a small tear or the cartilege is worn down then ART isnt appropriate and Prolo would seem appropriate-at least alot more than chiro or ART.
Yes I am sure it will help but alot of times a a few simple adjustments of your elbow will get it back to where you want it to be. I threw out my elbow bowling and and two adjustments had me back to normal. See a sports chiro that does ART anyway if you need it he can provide it for you...