Perlick, L and Bathis, H and Perlick, C and Luring, C and Tingart, M and Grifka, J (2005) Revision total knee arthroplasty: a comparison of postoperative leg alignment after computer-assisted implantation versus the conventional technique. KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, 13 (3). pp. 167-173. ISSN 0942-2056, 1433-7347
Full text not available from this repository. (Request a copy)Abstract
Accurate reconstruction of leg alignment is one important factor for long-term survival in total knee arthroplasty (TKA). Recent developments in computer-assisted surgery focused on systems improving TKA. The aim of the study is to compare the results of computer-assisted revision TKA with the conventional technique. We hypothize that a significantly better leg alignment and component orientation is achieved when using a navigation system for revision TKA. In a prospective study, two groups of 25 revision TKAs each were operated on using either a CT-free navigation system or the classical surgeon-controlled technique. The postoperative leg alignment was analysed on long-leg coronal and lateral X-rays. The mechanical limb axis was significantly better in the navigation-based group. Twenty-three patients (92%) in the computer-assisted group had a postoperative leg axis between 3 degrees varus/valgus deviation, while 19 patients (76%) in the conventional group had a comparable result (p < 0.05). Further, significant differences were seen for the coronal orientation of the femoral component. Computer-assisted revision TKA leads to a superior restoration of leg alignment compared with the conventional technique. Particularly the real-time presentation of the actual leg axis and the flexion and extension gaps is useful in revision TKA. Potential benefits in long-term outcome and functional improvement require additional investigation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | JOINT LINE; CLINICAL-EXPERIENCE; REPLACEMENT; PROSTHESIS; RESTORATION; NAVIGATION; alignment; joint line; navigation system; revision; total knee arthroplasty |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 18 May 2021 07:49 |
| Last Modified: | 18 May 2021 07:49 |
| URI: | https://pred.uni-regensburg.de/id/eprint/36319 |
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