My pet hamster has severe weakness in both arms now for 6 months. He had an anterior posterior cervical fusion 2 months ago. Strength is improving slightly. Said hamster will be on gh in AM and igf preworkout in hopes of regenerating nerves . Question is.. What injection site would best aid in nerve regeneration. Both arms are affected.. Flexion extension.. But inject to neck? Bi's tris? C3-C4 fusion. Anyone have any experience or thoughts?