Could we get a breakdown / explainer of said splinting scene :)
"You wouldn't think jagged bone digging into raw nerves would hurt, but it does." - Jack
In the scene, Sam and Jack are stuck on what they believe is an ice planet. Jack has a broken leg, which Sam reduces (sets) off camera. She then proceeds to splint the injury using a commercial splint and ties.
We're never told what part of Jack's leg is broken, and based on the splint they use it could be either. However, the fact that Jack can get up with help tells me he probably has a lower leg fracture.
Given that SG1 did NOT pay the electric bill this episode, here's the best screenshot I could find for the scene:
(the red line underline's Jack's leg and you can kind of see the splint Sam is putting on it).
Most likely it is a SAM splint or some other moldable commercial splint. These are made of a flat, flexible piece of aluminum encased in rubber foam (in the episode it appears to be black, but they are usually orange, see below).
The way they would have attached it would have been something like this (see lower leg in picture below):
Now, what really got me excited was the scene where she is doing the ties. The ties are the pieces of cloth that go around the leg and splint, basically holding the leg and splint together. Getting the ties under the leg is the hardest part of putting on a splint. What you have to do is shimmy the ties up from the foot to the spot you want them at, then tie them over the leg.
This sounds easy, but broken bones are generally way more painful and disabling in real life than they are in adventure fiction. So the reaction Jack has to the tiny movements of shimmying are very realistic. It is also really hard to cause another human that much pain, so Sam crying here is pretty realistic too.