Hi, Deckman.
As an Osteopath I have known three of my patients who have had this surgery but only one is a guitar player.
Each of them are most satisfied with the surgery and able to return to their normal work. I will try to contact the guirtar player tomorrow and come back to you.

For herbal/complementary therapies I agree that Comfrey is excellent, as is Glucosamine/Chondroitin mixture but this last must be taken as a mixture to be fully effective.
Occasional side effects have been noted but these are usually due to the carrier of the drug, which comprises a large proportion of the tablet.
Usually a change to another make will stop the side-effects.
Colyn.