Intentionally Increased Flexion Angle of the Femoral Component in Mobile Bearing Unicompartmental Knee Arthroplasty
The Journal of Korean Knee Society
; : 23-27, 2018.
Article
in En
| WPRIM
| ID: wpr-759309
Responsible library:
WPRO
ABSTRACT
PURPOSE:
The purpose of this study was to determine the results of mobile bearing unicompartmental knee arthroplasty (UKA) with an intentionally increased flexion angle of the femoral component in patients requiring high flexion. MATERIALS ANDMETHODS:
We investigated 45 knees treated by UKA. Clinically, we measured the range of motion (ROM) and the American Knee Society (AKS) score preoperatively and at final follow-up and investigated complications. Radiologically, we measured the flexion angle of the femoral component, the posterior slope angle of the tibial component, the femorotibial angle and mechanical axis of the limb postoperatively.RESULTS:
The ROM was increased from 123° preoperatively to 139° at the final follow-up. The AKS knee and function scores increased from 59 and 68, respectively, preoperatively to 94 and 96, respectively, at the final follow-up. The flexion angle of the femoral component was 9.1°, and the posterior slope angle of the tibial component was 8.6°. There was one case of bearing dislocation in the largest femoral flexion angle case.CONCLUSIONS:
The results might reflect the positive effect of an increased flexion angle of the femoral component up to 10° on ROM in mobile bearing UKA, which would contribute to better quality of life after UKA especially in populations requiring deep knee flexion.Key words
Full text:
1
Index:
WPRIM
Main subject:
Arthroplasty
/
Quality of Life
/
Follow-Up Studies
/
Range of Motion, Articular
/
Arthroplasty, Replacement, Knee
/
Intention
/
Joint Dislocations
/
Extremities
/
Knee
Type of study:
Observational_studies
/
Prognostic_studies
Limits:
Humans
Language:
En
Journal:
The Journal of Korean Knee Society
Year:
2018
Type:
Article