The range of motion of the second finger joint of the little finger can only bend 90 degrees, and there is no upward and lateral range of motion. Your condition is dislocation of the second finger joint of the little finger and rupture of extensor tendon and ligament. Because it was reset (done by myself) and the anatomical relationship was restored, there was nothing abnormal (except swelling) in the film. Now the little finger should be fixed, temporarily inactive, and treated as a bone injury. Because the fingers are not loaded, they can move slightly after one and a half months. If there is no pain, they can gradually increase their mobility. Until you fully recover.