Koeck, Franz Xaver and Beckmann, Johannes and Luring, Christian and Rath, Bjoern and Grifka, Joachim and Basad, Erhan (2011) Evaluation of implant position and knee alignment after patient-specific unicompartmental knee arthroplasty. KNEE, 18 (5). pp. 294-299. ISSN 0968-0160,
Full text not available from this repository. (Request a copy)Abstract
Implant positioning and knee alignment are two primary goals of successful unicompartmental knee arthroplasty. This prospective study outlines the radiographic results following 32 patient-specific unicompartmental medial resurfacing knee arthroplasties. By means of standardized pre- and postoperative radiographs of the knee in strictly AP and lateral view, AP weight bearing long leg images as well as preoperative CT-based planning drawings an analysis of implant positioning and leg axis correction was performed.The mean preoperative coronal femoro-tibial angle was corrected from 7 degrees to 1 degrees (p<0.001). The preoperative medial proximal tibial angle of 87 degrees was corrected to 89 degrees (p<0.001). The preoperative tibial slope of 5 degrees could be maintained. The extent of the dorsal femoral cut was equivalent to the desired value of 5 mm given by the CT-based planning guide. The mean accuracy of the tibial component fit was 0 mm in antero-posterior and + 1 mm in medio-lateral projection. Patient-specific fixed bearing unicompartmental knee arthroplasty can restore leg axis reliably, obtain a medial proximal tibial angle of 90 degrees, avoid an implant mal-positioning and ensure maximal tibial coverage. (C) 2010 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | UNICONDYLAR ARTHROPLASTY; NAVIGATION SYSTEM; REPLACEMENT; PROSTHESIS; ACCURACY; SURGERY; DESIGN; Knee arthroplasty; Unicompartmental; Customized; Alignment; Implant positioning |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 May 2020 06:04 |
| Last Modified: | 29 May 2020 06:04 |
| URI: | https://pred.uni-regensburg.de/id/eprint/20079 |
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