Some of this could represent swelling in the post traumatic phase of the injury or post surgical phase, if surgery was performed. However, for a severe finger fracture there may be degrees of malalignment and or malrotation which could explain the deviated posture of the finger.

Sounds like the fracture may have some angulation or rotational deformity. Your doctor should evaluate for this with an X-ray.

Without being able to look at your X-rays, I cannot give you a definitive answer. One of the possibilities is that the bone healed with some angulation. I would recommend that you discuss this with your treating physician.

Depending where the fracture occurred at a joint or through a bone, the finger may have a deformity after healing. The most important thing is that your finger can bend and you have a good range of motion without pain.

This is a good question. Did you have a surgical procedure? What bone was injured ? Sometimes surgeons will accept a slight deformity in a fracture as opposed to fixing the bone surgically, sometimes a fracture will settle or change position after the original injury X-ray. Often in hand injuries, there can be a rotational mal-alignment that makes the finger look crooked. What has your treating doctor told you and have you had a follow up X-ray?

There are 2 possible reasons. Either it is swollen and appears crooked. Or the bone has actually healed with some angulation. Consult with your hand surgeon.