Worlicek, Michael and Schaumburger, Jens and Springorum, Robert and Maderbacher, Guenther and Zeman, Florian and Grifka, Joachim and Baier, Clemens (2022) In vivo knee kinematics of an innovative prosthesis design. OPEN MEDICINE, 17 (1). pp. 1318-1324. ISSN 2391-5463,
Full text not available from this repository. (Request a copy)Abstract
Up to 20% of patients after total knee arthroplasty (TKA) are not satisfied with the result. Several designs of new implants try to rebuild natural knee kinematics. We hypothesized that an innovative implant design leads to better results concerning femoral rollback compared to an established implant design. For this pilot study, 21 patients were examined during TKA, receiving either an innovative (ATTUNE (TM) Knee System (DePuy Inc.), n = 10) or an established (PFC (TM) (DePuy Inc.), n = 11) knee system. All patients underwent computer navigation. Knee kinematics was assessed after implantation. Outcome measure was anterior-posterior translation between femur and tibia. We were able to demonstrate a significantly higher femoral rollback in the innovative implant group (p < 0.001). The mean rollback of the innovative system was 11.00 mm (95%-confidence interval [CI], 10.77-11.24), of the established system 8.12 mm (95%-CI, 7.84-8.42). This study revealed a significantly increased lateral as well as medial femoral rollback of knees with the innovative prosthesis design. Our intraoperative finding needs to be confirmed using fluoroscopic or radiographic three-dimensional matching under full-weight-bearing conditions after complete recovery from surgery.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LIVING KNEE; ARTHROPLASTY; MOVEMENT; SATISFACTION; CONSTRAINTS; NAVIGATION; BEARING; FLEXION; JOINT; TKA; knee arthroplasty; knee kinematics; femoral rollback; navigation |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie Medicine > Zentren des Universitätsklinikums Regensburg > Zentrum für Klinische Studien |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Oct 2023 10:00 |
| Last Modified: | 17 Oct 2023 10:00 |
| URI: | https://pred.uni-regensburg.de/id/eprint/56491 |
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