Bone formation in porous implants of delrin and commercially pure titanium |
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| Authors: | F Buch T Alhrektsson |
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| Institution: | (1) Laboratory of Experimental Biology, Department of Anatomy and Handicap Research, University of Gothenburg, Box 33031, S-40033 Gothenburg, Sweden;(2) Department of Orthopedic Surgery, University Hospital, Uppsala, Sweden;(3) Stenhuggarvägen 10, S-16137 Bromma, Sweden |
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| Abstract: | Summary Clinicians have been using implants made by titanium or delrin with varying results. In this study dividable implants, bone growth chambers (BGC), of titanium and delrin were inserted into the rabbit tibia. The ingrowth of hard tissue into a canal in the implant was evaluated after 3 weeks by microradiography and numerically determined by computer analysis. Results showed that bone ingrowth into titanium implants was significantly larger than into delrin implants (P < 0.005). The possible reasons for this are discussed.This study was supported by grants from the Swedish Medical Research Council (B 84-12P-6475-02) and B 84-12X-6533-02), King Gustaf V Jubilee Foundation, Trygg-Hansa Research Fund, the Gothenburg Medical Society, and the Greta and Einar Askers Foundation. |
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