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Medical Definition of Epiphysiodesis
1. 1. Premature union of the epiphysis with the diaphysis, resulting in cessation of growth. 2. An operative procedure that partially or totally destroys an epiphysis and may incorporate a bone graft to produce fusion of the epiphysis or premature cessation of its growth; generally undertaken to equalise leg length. Origin: epiphysis + G. Desis, binding (05 Mar 2000)