Medical
i'm writing a story and i want to know what would happen in this scenario.
an animal trainer gets scratched in the arm by a lion and it rips into the skin and muscles of the top of the forearm.
what is the possibility that they lose the power to move their hand/wrist, and would there be any way for doctors to surgically fix it besides just putting the muscles and skin back together?

Well, you could certainly lose the use of the hand and possibly wrist.  However, modern repair techniques would probably be effective unless the damage was very extensive.

Generally, if the damage is basic, repairs are done with a local or general anaesthetic, suturing the torn ligaments and layers together.

If the damage is more serious, sometimes micro surgery is required, using a microscope thew surgeon looks into while working.  This can repair nerves, ligaments, muscles or blood vessels.

In either case, the patient would need a tetanus jab, lots of antiseptic, sutures visible on the skin, and probably some bandaging.

Is that enough?

Ithink the correct answer would be that since the disease is passed by a hand shake and can be cured with antibiotics that it could be an infection. an example could be that once when i was working in a bush camp, i got blood poisoning from blood blisters that got infected. our cook did not wash his hands after going to the bathroom and he passed staphyloccus on to the crew he fed. one other person also got a bad similar infection on the side of his face. i had to be rescued by helicopter and taken to the hospital so i wouldn't die!

Musculoskeletal or gastrointestinal