Perlick, Lars and Bathis, H. and Tingart, M. and Kalteis, T. and Grifka, Joachim (2003) Usability of an image based navigation system in reconstruction of leg alignment in total knee arthroplasty - Results of a prospective study. BIOMEDIZINISCHE TECHNIK, 48 (12). pp. 339-343. ISSN 0013-5585, 1862-278X
Full text not available from this repository. (Request a copy)Abstract
Accurate leg alignment is one important factor for long term survival in total knee arthroplasty (TKA). The aim of this study was to determine the accuracy of a CT-based navigation system in restoration of the leg axis. 80 TKA (P.F.C.-Sigma - DePuy(R)) were implanted either using a CT-based navigation-system or the conventional technique. There were no significant differences between the groups according to the preoperative leg deformity. Accuracy of implantation was determined on postoperative long-leg coronal and lateral x-rays. A postoperative leg axis between 3degrees varus and 3degrees valgus was obtained in 35/40 patients (88 %) in the computer assisted and 28/40 patients (70 %) in the conventional operated group. A higher precision in the sagittal plane was seen for the tibial (computer assisted: 3.9 +/- 2.2 vs. conventional TKA 1.3 +/- 5.8) and the femoral component (computer assisted: 3.5 +/- 2.3 vs. conventional TKA 6.9 +/- 3.6). The use of the CT-based VectorVision-System allows a significant improvement in the accuracy of implantation in TKA, The CT-based module has the advantage of a precise preoperative planning and a useful documentation and control tool for each important step. On the other hand there are additional costs and time consuming logistics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | REPLACEMENT; EXPERIENCE; ROTATION; total knee arthroplasty; gonarthritis; alignment; image guided surgery |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 27 Jul 2021 10:13 |
| Last Modified: | 27 Jul 2021 10:13 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38328 |
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