Related Experiment Video
Updated: Jan 10, 2026
Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
Published on: February 17, 2023
3-Dimensional analysis of fit of total knee replacement prior to implantation: what difference does it make?
Lennart Theiss1, Chao Lou2, Michael Jagodzinski3
1Cardiology, Agaplesion ev. Klinikum Schaumburg, Bückeburg, Niedersachsen, Germany.
Purpose:
Analysis of the fit of off-the-shelf knee endoprostheses in three-dimensional planes, with possible impact on the implantation results.
Methods:
The implantation of three different off-the-shelf knee endoprostheses is simulated in 92 patients who were treated with custom-made knee endoprostheses in Agaplesion Ev. Klinikum Schaumburg joint centre Fit was determined in different planes using newly defined measurement variables.
Results:
Significant deviation of fit in different measurement categories depending on prothesis model and patient characteristics.
Conclusions:
The results of this study encourage to do preoperative analysis of patients anatomical knee shape and to perform preoperative fit simulations in defined measurement categories for different knee endoprotheses before implantation to reach optimal results.
Clinical Relevance:
Such algorithms may significantly improve the early postoperative results in terms of range of motion and long-term revision rates, with an impact on patient satisfaction and overall treatment costs for knee arthritis.
