Reconstruction of a defect of the long process of the incus by means of bone chips, cartilage grafts or other material do not give satisfactory long term results. Plester developed therefore an angled prosthesis to reconstruct the defect. It consists of a cross-slit gold bell which is connected with a double band titanium cuff by a tiny gold wire. The prosthesis crimped on the stamp of the long process with open tatanium bands, the bell is kept overthe head of the stapes, The authors have inserted 81 angled prosthesis. In 63 cases, the post operative conductive hearing loss amounted to 15 dB on an average.