Table 2 Gap increases with each procedure in total knee arthroplasty

Release of the dMCL (step 1)

1.6 ± 0.8

0.4 ± 0.2

1.7 ± 0.6

0.5 ± 0.3

 Anterior-medial release (2a)

1.0 ± 0.4 A

0.2 ± 0.2 E

1.6 ± 0.5 a

0.6 ± 0.2 e

 Posteromedial release (2b)

1.7 ± 0.6 B

0.4 ± 0.3

1.2 ± 0.5 b

0.5 ± 0.3

 Medial osteotomy (3a)

1.1 ± 0.5 C

0.2 ± 0.3 F

2.0 ± 0.8 c

0.6 ± 0.4 f

 Posteromedial osteotomy (3b)

1.5 ± 0.8 D

0.3 ± 0.2

0.8 ± 0.4 d

0.4 ± 0.3