Computer assisted implantation of the femoral stem in THA – an experimental study

International Orthopaedics - Tập 23 - Trang 224-226 - 1999
J. Jerosch1, E. Peuker2, C. von Hasselbach3, A. Lahmer4, T. Filler2, U. Witzel5
1Orthopaedic Department, Johanna-Etienne-Hospital, Am Hasenberg 46, D-41462 Neuss, Germany Tel.: +49-2131-5292001, , DE
2Institute of Anatomy, Westfälische Wilhelms-Universität, Münster, Germany, , DE
3Arthro-Clinic, D-45131 Essen, Germany, , DE
4BG-Trauma-Clinic, D-60389 Frankfurt/Main, Germany, , DE
5Biomechanic Research, Institute for Construction Technique, Ruhr-University Bochum, Germany, , DE

Tóm tắt

Fourteen femoral stems were implanted either manually by an experienced surgeon or by a robot in fresh human cadaveric femora. The neck-shaft angle, the anteversion, the length of the femoral neck and the gap between stem and bone was measured in each specimen. Implantation by robot showed higher precision in reconstructing the true anatomic situation as well as providing a better press fit.