Source : Webster's Revised Unabridged Dictionary (1913)

Refracture \Re*frac"ture\ (r?*fr?k"t?r;135), n. (Surg.)
   A second breaking (as of a badly set bone) by the surgeon.

Refracture \Re*frac"ture\, v. t. (Surg.)
   To break again, as a bone.

Source : WordNet®

refracture
     v : break (a bone) that was previously broken but mended in an
         abnormal way; "The surgeon had to refracture her wrist"