As a board-certified chiropractic orthopedist for the last 20 yrs, another deep-tissue release technic that I have found extremly beneficial and have been certified in for the last 7 years or so is Neuromuscular Reeducation. You can find a certified practitioner at
http://www.nmrseminars.com/
Both ART and NMR are sister technics and originated from an earlier deep-tissue release system, each with a slightly different spin but both are very good. Don't get me wrong though, neither one are going to "repair" torn tissue. If you need surgry, then you need surgery. Their utility lies in releasing scar tissue and adhesions for whatever reason (disuse, post-surgical scarring, etc.)with the main goal of restoring function. Most times, this will also provide a reduction in pain as well. Not for the weak at heart though...
Brian