Can Finger Trauma Causing Numbness, Swelling And Lack Of Movement Be Treated?

hello,
i revently encountered a bit of a problem.

i accidently cut my pinky and the one right next to it and cut it pretty deep.. (hospital papers say a laceration throught the skin fat and muscles) i cut an artery in my pinky so it bleed pretty perfusally. i ended up getting stitched and bandaged up and was outta there in 2 hours. they perscribed keflex 500 mg po cap. about a day and a half later i noticed i couldnt bend either one. they stay straight out, pinkys kind of off to the right. the pinky was the worst of the cuts. pinky is basically pretty numb (doubt from the number since its been 2.5 days). i can bend them if i use my other hand to.. pinkys swollen. cant relle see knuckles.. im just very concerned that a. ill never be able to bend them again or if ill ever get feeling back. and b. if they will over time have to get amputated..

please help

sincerely, Tyler