TKA Coronal Balancing

Question 1

What structures can be released in a varus knee for coronal balancing?

Answer 1

1) Osteophytes and posterior capsule
2) Deep MCL
3) Posteromedial capsule (semimembranosou; affects extension)
4) Superficial MCL (flexion)
5) Posterior oblique ligament (Extension)
6) PCL

If knee still does not balance of extensive release consider lateral side tightening

Question 2

What structures can be released in a valgus knee for coronal deformity?

Answer 2

1) Osteophytes and lateral capsule
2) IT band (extension)
3) Politeus (flexion)
4) LCL

Question 3

Highest risk of peroneal palsy exist with what deformity?

Answer 3

Correction of a valgus knee with flexion contracture.

If palsy in PACU, remove dressings and flex the knee