In reply to richenson:
I did something which sounds fairly similar a few years ago. I was playing in goal and had the ball strike the end of my finger shearing off a chunk of bone. Did they diagnose it as a Volar Plate Avulsion?
I eventually got round to going to A&E after my finger doubled in size and I couldn't move it which took about 24 hours
Chatting with thee nurse I say I think I dislocated it and she gives it an exploratory bend to check, which caused it to bend in a few odd ways then sends me for x-ray.
A little while later a Doctor come over to discuss the X-ray and asks all the normal questions "which finger was it etc" and then asks me to run through what tests had been done. He went a tiny bit green when I started repeating the bends the nurse had done and told me I'd broken it.
From the X-ray it looked like I'd sheared off about 1/3 of the joint adjacent to the middle joint of the ring finger on my right hand.
The Doctor told me I was lucky I hadn't sheared the tendon and that I'd probably be fine in a few weeks, it definitely wasn't ok when I sat my university finals 5 days later
It healed up fairly quickly even with my lame attempts at resting it but I still get a bit of trouble with the joint as it doesn't feel smooth. Unless you took a huge chunk out I doubt you'll have much trouble.