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Cruciate ligament force of knees following mobile-bearing unicompartmental knee arthroplasty is larger than the preoperative value.
- Source :
-
Scientific reports [Sci Rep] 2021 Sep 14; Vol. 11 (1), pp. 18233. Date of Electronic Publication: 2021 Sep 14. - Publication Year :
- 2021
-
Abstract
- We analyzed the implantation effects on cruciate ligament force in unicompartmental knee arthroplasty (UKA) and determined whether kinematics is associated with the cruciate ligament force. We examined 16 patients (17 knees) undergoing medial UKA. Under fluoroscopy, each participant performed a deep knee bend before and after UKA. A two-dimensional/three-dimensional registration technique was employed to measure tibiofemoral kinematics. Forces in the anteromedial and posterolateral bundles of both the anterior cruciate ligament (aACL and pACL) and the anterolateral and posteromedial bundles of the posterior cruciate ligament (aPCL and pPCL) during knee flexion were analyzed pre- and post-UKA. Correlations between changes in kinematics and ligament forces post-UKA were also analyzed. Preoperatively, the aACL forces were highly correlated with anteroposterior (AP) translation of the lateral condyles (Correlation coefficient [r] = 0.59). The pPCL forces were highly correlated with the varus-valgus angulation (r = - 0.57). However, postoperatively, the PCL forces in both bundles were highly correlated with the AP translation of the medial femoral condyle (aPCL: r = 0.62, pPCL: r = 0.60). The ACL and PCL forces of the knees post-UKA were larger than those of the knees pre-UKA. Kinematic changes were significantly correlated with the cruciate ligament force changes.<br /> (© 2021. The Author(s).)
- Subjects :
- Aged
Aged, 80 and over
Arthroplasty, Replacement, Knee methods
Biomechanical Phenomena
Female
Humans
Male
Middle Aged
Movement
Anterior Cruciate Ligament physiopathology
Arthroplasty, Replacement, Knee adverse effects
Knee physiopathology
Posterior Cruciate Ligament physiopathology
Postoperative Complications physiopathology
Subjects
Details
- Language :
- English
- ISSN :
- 2045-2322
- Volume :
- 11
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Scientific reports
- Publication Type :
- Academic Journal
- Accession number :
- 34521921
- Full Text :
- https://doi.org/10.1038/s41598-021-97655-z