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Biomechanically induced tissue reactions after Al2O3-ceramic hip joint replacement. Experimental and early clinical results

✍ Scribed by Griss, P. ;Silber, R. ;Merkle, B. ;Haehner, K. ;Heimke, G. ;Krempien, B.

Publisher
John Wiley and Sons
Year
1976
Tongue
English
Weight
583 KB
Volume
10
Category
Article
ISSN
0021-9304

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✦ Synopsis

Abstract

A biomechanical concept of interface maturation around cement‐free implanted alumina–ceramic hip endoprostheses in sheep is explained. Provided there is rigid primary stability of the implant within the bone bed, hard tissue formation along the support areas of the implant is mainly dependent on implant shape and main local stress direction. Three subsequent phases of interface maturation can be distinguished, finally resulting in firm fixation of the implant by mechanical interlocking of supporting bone and ceramic.

A new composite alumina–metal hip endoprosthesis for partial cement‐free implantation (cup) is presented. The technique, postoperative care, and encouraging early results in 5 patients are demonstrated. A new ceramic femoral component for cement‐free implantation is proposed.

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Morphological and biomechanical aspects
Morphological and biomechanical aspects of Al2O3 ceramic joint replacement. Experimental results and design considerations for human endoprostheses
✍ Griss, Peter ;Heimke, G�nther ;von Andrian-Werburg, Hanns ;Krempien, Burkhard ;R 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 629 KB

## Abstract Four different acetabular replacement designs and 2 femoral head replacement designs made out of high density alumina ceramic have been tested in sheep with postoperative survival times of up to 11 months (Frialit 99: Al~2~O~3~ 99.6%, MgO 0.4%). It can be concluded from these experimen