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Fractures of the diaphysis can be transverse, oblique, spiral, or comminuted.

However, since fragments in this segment are generally smaller than in the proximal phalanx, management and stabilization can be more of a challenge. Consequences of malunion (pain or deformity), or of degenerative joint disease, at the DIP joint can well be dealt with by arthrodesis, which is a procedure with very predictable outcome.