A Spliced Escape!

You have had a rather unfortunate 24 hours, somehow winding up in the basement of a psychotic veterinarian with a god complex. His specialty is splicing animals and joining them together! You’ve been restrained and etherized, but (somewhat) lucky for you, the Doctor couldn’t help himself and has sliced off your forearm. You must use your recently severed limb to free yourself from your shackles and break free before the madman can get slice up the rest of you!