Keshmiri, Armin and Springorum, Hans Robert and Baier, Clemens and Zeman, Florian and Grifka, Joachim and Maderbacher, Gunther (2016) Changes in sagittal component alignment alters patellar kinematics in TKA: an in vitro study. KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, 24 (3). pp. 823-829. ISSN 0942-2056, 1433-7347
Full text not available from this repository. (Request a copy)Abstract
Patellar maltracking due to incorrect component alignment is considered as a main reason for anterior knee pain after total knee arthroplasty (TKA). In contrast to coronal and axial component placement, the influence of sagittal component alignment on patellar kinematics has not been investigated so far. In ten lower cadaveric limbs, TKAs were implanted using a commercial computer navigation system. In six knees, the femoral component was aligned in 5A degrees and in four knees in 0A degrees of flexion, respectively. Patellar kinematics were registered by means of a computer navigation system using an additional patella tracking array and correlated with femoral and tibial sagittal component alignment. Sagittal component alignment significantly altered patellar mediolateral shift (p < 0.05). In contrast, patellar epicondylar distance, rotation and tilt were not significantly influenced. Sagittal component alignment in TKA has a major impact on patellar kinematics and should therefore be considered while addressing tibiofemoral kinematics intraoperatively.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TOTAL KNEE ARTHROPLASTY; POSTERIOR TIBIAL SLOPE; PATELLOFEMORAL JOINT; ROTATION; IMPLANT; BIOMECHANICS; TRACKING; FLEXION; AXIS; Patellar kinematics; Patellar tracking; Total knee arthroplasty; Sagittal component alignment; Computer navigation system |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 Mar 2019 12:35 |
| Last Modified: | 11 Mar 2019 12:35 |
| URI: | https://pred.uni-regensburg.de/id/eprint/2270 |
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