Under what circumstances would you consider low-dose radiation therapy for osteoarthritis in an older adult patient?

Almost any and all circumstances.

Here is a recent expert consensus by Joel Block on the use of low-dose radiation therapy in OA:

Some highlights:

"Placebo-controlled randomized clinical trials have now been reported using LDRT for OA of the knees and of the hands. Taken together, they do not show benefit beyond placebo... While a d...