Select a Community
Are you sure you want to trigger topic in your Anconeus AI algorithm?
You are done for today with this topic.
Would you like to start learning session with this topic items scheduled for future?
Resect more proximal tibia
2%
55/2294
Downsize the femoral component
86%
1977/2294
Addition of a distal femoral augment
1%
24/2294
Downsize the tibial polyethylene insert
4%
86/2294
Resect more distal femur
6%
137/2294
Select Answer to see Preferred Response
This question is stating that a total knee trial is balanced in extension, but tight in flexion. Downsizing the femoral component increases the flexion gap without changing the extension gap. This allows for more flexion without affecting extension. Additional distal femoral resection will create a larger extension gap without affecting the flexion gap. Reducing the thickness of the tibial insert or resecting more tibia would increase both the extension and flexion gaps. Manson et al review sagittal plane balancing techniques specifically focusing on the differences between posterior condylar referencing guides and anterior femoral referencing guides. Illustration A depicts the gap changes associated with increasing or decreasing the femoral component size (smaller AP size as seen in Drawing B of the illustration) leads to a larger flexion gap and unchanged extension gap.
4.1
(26)
Please Login to add comment