I had a fight bite right on/in the joint of my left ring finger. Swelling/infection curled it and useless, but once all that was gone, it remained kinda weak/less than full movement for a couple months, followed by another 6 of pain when squeezing hard or popping finger. Eventually did go away. Could be the injury swelling, or maybe I knicked but didnt cut. Not a clear answer but just my experience.