Sounds like a bunch of wank, but I was able to use meditation techniques years ago when I broke my foot in a tournament in the first round. Proud to say I went on into the finals with the injury. Still hurt, but not as much as not being able to "block it out" for that time. I suffered for it when I returned back to Adelaide. My foot was heavily swollen and black in colour. The only reason I got away with going on for so long was because the doctors on hand for the tournament were SA doctors from Adelaide, so they strapped me up and turned a blind eye. The bottom line is 'pain relief' whether meditation, medication or other treatment is only temporary ... long term pain suffers have limited pain relief.
Also when I broke my shoulder in a bike crash. 2 days after I was out of hospital, I was in the garage pulling my bike apart (with the use of one arm). However, nothing to do with "mokuso" or meditation at the time ... I was just impatient to get back on my bike.
Everyone is different in their threshold to pain and natural management of pain. I have a high threshold, but I'm sure I'd go mad enduring pain as long as Tangles has.