diaphysectomy

Partial or complete removal of the shaft of a long bone. [diaphysis + G. ektome, excision]

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di·a·phy·sec·to·my .dī-ə-fə-'zek-tə-mē, -'sek- n, pl -mies surgical excision of all or part of a diaphysis (as of the clavicle, femur, or fibula)

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di·a·phys·ec·to·my (di″ə-fiz-ekґtə-me) [diaphysis + -ectomy] excision of a portion of the shaft of a long bone.