The Collaborative International Dictionary of English v.0.48:

Osteoplastic \Os`te*o*plas"tic\, a. [Osteo- + -plastic.]
   [1913 Webster]
   1. (Physiol.) Producing bone; as, osteoplastic cells.
      [1913 Webster]

   2. (Med.) Of or pertaining to the replacement of bone; as, an
      osteoplastic operation.
      [1913 Webster]