osteotomy
  截骨術
  os·te·ot·o·my /ˌɑstɪˈɑtəmɪ/ 名詞
  截骨術
  Os·te·ot·o·my n.
  1. The dissection or anatomy of bones; osteology.
  2. Surg. The operation of dividing a bone or of cutting a piece out of it, -- done to remedy deformity, etc.
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  osteotomy
       n : surgical sectioning of bone