Keshmiri, Armin and Maderbacher, Guenther and Baier, Clemens and Benditz, Achim and Grifka, Joachim and Greimel, Felix (2019) Kinematic alignment in total knee arthroplasty leads to a better restoration of patellar kinematics compared to mechanic alignment. KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, 27 (5). pp. 1529-1534. ISSN 0942-2056, 1433-7347
Full text not available from this repository. (Request a copy)Abstract
PurposeThe influence of different implantation techniques in TKA on tibiofemoral kinematics was analysed in few investigations so far. However, the influence on patellar kinematics remain unclear. The aim of the present investigation was to compare patellar kinematics of the natural knee with those of knees after both kinematically and mechanically aligned TKAs.MethodsPatellar kinematics of ten cadaveric knees before and after TKAs implanted using both a kinematic and mechanic alignment technique were investigated and compared using a commercial optical computer navigation system.ResultsThere was a statistically significant difference between natural patellar kinematics and both implantation techniques analysing mediolateral shift. Patellar lateral tilt showed significant better results in the kinematically compared to the mechanically aligned TKAs. In terms of patella rotation, the patella of both mechanically and kinematically aligned TKAs showed significant higher values for external rotation compared to the natural knee. Regarding epicondylar distance again a significant better restoration of natural kinematics could be found in the kinematically aligned TKAs.ConclusionKinematically aligned TKAs showed a better overall restoration of patellar kinematics compared to a conventional mechanical alignment technique. In terms of clinical usefulness, the present study highlights the potential benefit for clinical outcome using a kinematically aligned implantation technique in TKA to achieve a better restoration of natural patellofemoral kinematics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COMPONENT; FLEXION; TRACKING; PAIN; TKA; Patellar tracking; Patellar kinematics; Computer navigation; Kinematical alignment; Mechanical alignment; Total knee arthroplasty; Total knee replacement; TKA; TKR |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Apr 2020 07:14 |
| Last Modified: | 09 Apr 2020 07:14 |
| URI: | https://pred.uni-regensburg.de/id/eprint/27072 |
Actions (login required)
 |
View Item |
