.png){kind=icon}
.png){kind=icon}
Return
Intraoperative variability between the anteroposterior and posterior condylar axes in primary TKA supports a 20° proximal trochlear entrance design for unrestricted kinematic alignment
.png){kind=icon}
OA
AI
E
J
D
M
M
DOI：10.1002/ksa.70481.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Unrestricted kinematic alignment (uKA) in total knee arthroplasty (TKA) creates a challenge for trochlear design. Femoral implants designed for mechanical alignment (MA) use asymmetrical posterior bone cuts to adjust axial rotation and optimize patellofemoral tracking. In uKA, posterior bone cuts are calipered resections. There is no rotational adjustment. The prosthetic trochlea is therefore fixed relative to the posterior condylar axis (PCA). The rotational variability between the native anteroposterior axis (APA) and the PCA determines the proximal trochlear entrance width required to capture the patella. This study directly measured this rotational relationship intraoperatively and determined whether a dedicated trochlear design is required for the uKA technique.
Keywords:
anteroposterior axis line
femoral axial rotation
posterior condylar axis line
total knee arthroplasty
trochlear design
unrestricted kinematic alignment
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
5
Papers:
9.0K
Citations:
2.5W
Organization
Cited Papers