The UCL is akin to the ACL, only on the inside of the elbow. While a human with a torn UCL would have a bit of pain, and would have a harder time throwing things, activities like walking, holding a heavy object, or even stabilizing a weapon wouldn't be that bad. For a wolf, however, it would be similar to a torn ACL, meaning pain when walking, running, turning, or even standing still. If it was the human's non-dominate arm, it would have even less effect on them, while the wolf form would still be just as badly off.
While wolves have 18 ear muscles and humans only have 6, if those six muscles are damaged, humans may only barely notice, but wolves will find themselves unable to easily direct their ear toward sounds, limiting hearing.
Worse, if a human's (outer) ear is very damaged, they won't look great, but their hearing won't be too much worse. Wolves, however, use their ears as "sound scoops", directing sounds into their ear canal; without an outer ear, they will lose a lot of directional hearing, and their hearing overall will drop considerably.
While getting a bad burn would suck, as long as it healed decently, a human would only have an unsightly scar to deal with. If the scar is on their back, it may go entirely unnoticed; out of sight, out of mind.
However, hair doesn't grow on burned scar tissue, or at best grows in clumps and patches. Wolves don't (usually) have the option of wearing clothing, and without hair - especially body hair - they will freeze to death in cold weather.
Wolves and humans use very different joints. While a human would probably be fine if they had one or more ribs fused to their spine, it would mean a huge limitation to a wolf. Likewise, a human with a fused ankle would only be slightly slower than usual, while a wolf would hardly be able to move. A human with a fused wrist, especially non-dominate wrist, would function almost entirely normally, while a wolf would again be nearly unable to walk. Fusing a pair of spinal bones may make a human slightly uncomfortable, or unable to turn their head as far, but would severely limit a wolf's range of motion.
For a human, it's pretty annoying to have a clogged nasal passage. You can't smell, you have to breathe through your mouth, and you have an annoying feeling of blockage - not to mention the mucus draining down the back of your throat. For a wolf, however, having a stuffy nose means losing one of their best senses - smell. And, unlike a human, wolves have to work a lot harder to swallow draining mucus; rather than just swallow, they often have to do a sort of "reverse sneeze" to force the mucus down.
Humans have a far more complex digestion system, compared to wolves. We can eat just about anything, and unless we have some sort of sensitivity or allergy, it goes through the system without a fuss. However, after an illness (especially if we had to take an antibacterial medication), out gut bacteria can get screwed up. If we don't fix it, eating certain foods can become very difficult. However, being that we can eat just about anything, the simplest fix is... don't eat that food.
Wolves don't have that option. They are meat-eaters, and their guts are designed to process one thing, and one thing only: meat. If they can't process proteins, that's basically a death sentence. While it's possible for wolves to digest some non-proteins, those foods are usually heavily processed, essentially pre-digesting them. That food would be hard to come by anywhere but a highly civilized area.