Keshmiri, Armin and Springorum, Hans and Baier, Clemens and Zeman, Florian and Grifka, Joachim and Maderbacher, Guenther (2015) Is it possible to re-establish pre-operative patellar kinematics using a ligament-balanced technique in total knee arthroplasty? A cadaveric investigation. INTERNATIONAL ORTHOPAEDICS, 39 (3). pp. 441-448. ISSN 0341-2695, 1432-5195
Full text not available from this repository. (Request a copy)Abstract
Purpose Several authors emphasise that the appearance of patellar maltracking after total knee arthroplasty (TKA) is caused by rotational malalignment of the femoral and tibial components. Ligament-balanced femoral component rotation was not found to be associated with abnormal postoperative patellar position. We hypothesised that a ligament-balanced technique in TKA has the ability to best re-establish patellar kinematics. Methods In ten cadaveric knees TKA was performed assessing femoral rotation in ligament-balanced and different femoral and tibial component rotation alignments. Patellar kinematics after different component rotations were analysed using a commercial computer navigation system. Results Ligament-balanced femoral rotation showed the best re-establishment of patellar kinematics after TKA compared to the healthy pre-operative knee. In contrast to tibial component rotation, femoral component rotation had a major impact on patellofemoral kinematics. Conclusions This investigation suggests that a ligament-balanced technique in TKA is most likely to re-establish natural patellofemoral kinematics. Tibial component rotation did not influence patellar kinematics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FEMORAL COMPONENT ROTATION; PATELLOFEMORAL JOINT; TRACKING; ALIGNMENT; Patellar kinematics; Total knee arthroplasty; Computernavigation; Patellar tracking; Ligament balancing; Component malalignment |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Jul 2019 05:57 |
| Last Modified: | 26 Jul 2019 05:57 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5906 |
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