Polyacryl prosthesis for cranioplasty?Their production in silicon rubber casts

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Abstract
The frequently observed osteolysis after reimplantation of deepfrozen skullcap bone have led us to use polyacryl as the material of choice if a secondary covering of a skull bone defect becomes necessary. Polyacryl has an excellent biological compatibility but often yields unsatisfactory cosmetic results when the modelling is done at the site of the intervention, especially in the case of defects in the forehead region. A method is described that allows the preparation of a prosthesis before the actual operation identical with the original bone in every detail. The surgery is then confined to the anchoring of the prosthesis to the bone edges.