LeFrog,
Good move getting cleaned up prior to going to the hospital.. The ER personnel get real truculent if you let them know your injury is "murdercycle" related (their terminology). I found that the best way to get help is to put your head down and begin groaning REAL loud. They don't take pity on you, but they become more motivated to get you out of the waiting room.
As to the Tens Unit: I have not used one, but understand that it is effective for pain relief.
I have used the Bionicare electrotherapy unit to promote healing in my knees and can report that it does seem to work.
Coupled with viscosupplementation therapy the Bionicare has allowed me to get back on my bike. Admittedly I still can't stand on the pegs too much and I require Tall Seat Foam, but at least I have not had to sell my berg.
If any of you suffer from extremely bad knees contact me for info on viscosupplementation therapy. My case was extreme enough to require knee replacements, but the therapy has made the surgery unnecessary -- at least for now. I also got the Sodium Hyaluronate shots in my bad shoulder, but it was not effective there.
I wish all of you a quick recovery. Try to make it to Bobzilla's next ride and we'll form a special Gimp Group at the rear of the pack.
Dez