Usually, 51 days in a cast for a fracture of the back of the hand is not a long time. If the fracture of the back of the hand is not obviously displaced, usually the cast is fixed for 4~6 weeks, during the fixation period, pay attention to the tightness and looseness of the cast, you can take oral medication such as musk bone capsule or bone marrow capsule, review X-ray if the fracture line is blurred, you can remove the cast and perform functional exercises, if there is no obvious scab at the fracture end of the fracture need to extend the fixation period of 2 weeks or so. If the back of the hand comminuted fracture, the healing should be slow, generally need to be fixed for 6~8 weeks, regular review film, when the local swelling and pain disappears, the fracture line is blurred can be removed from the cast exercise. For the back of the hand fracture surgical internal fixation is generally fixed for about 1 month. Therefore, 51 days of casting for back of hand fracture is not a long time.