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Table 4 Intraoperative variables, by group

From: Is there a difference in joint line restoration in revision Total knee arthroplasty according to prosthesis type?

 

Group 1 (n = 17)

Group 2 (n = 13)

Group 3 (n = 30)

P-value

Femoral stem

 Offset/Straight (n)

9(53%) / 8(47%)

4(31%) / 9(69%)

29(97%) / 1(3%)

0.00

 Size of offset (mm)

1.1 ± 1

1.4 ± 2.2

4.7 ± 1.7

0.00

Tibial stem

 Offset/Straight (n)

0(0%)/17(100%)

0(0%)/13(100%)

26(87%) / 4(13%)

0.00

 Size of offset (mm)

0

0

3.7 ± 2.0

0.00

Metal Augments (n/size)

 Femoral Distal medial

16(94%) / 5.6 ± 2.5

9(69%) / 5 ± 4.1

26(87%) / 6 ± 3.3

0.16 / 0.38

  Distal lateral

15(88%) / 5.4 ± 2.8

8(62%) / 4.6 ± 4.3

28(93%) / 6.5 ± 3.5

0.03 / 0.2

  Posteromedial

17(100%) / 6.1 ± 2.1

11(85%) / 7.3 ± 3.9

24(80%) / 5 ± 3.2

0.15 / 0.08

  Posterolateral

17(100%) / 6.1 ± 2.1

12(92%) /6.5 ± 3.2

24(80%) / 5.8 ± 4.0

0.11 / 0.49

  Anterior

0 / 0

1(8%) / 0.4 ± 1.4

0 / 0

0.16 / 0.16

 Tibial Medial

6(35%) / 4.1 ± 5.9

9(69%) / 5.8 ± 4.9

16(53%) / 4.5 ± 5.3

0.18 / 0.49

  Lateral

4(24%) / 2.4 ± 4.4

2(15%) / 0.8 ± 1.9

8(27%) / 1.8 ± 3.6

0.72 / 0.67

Thickness of PE (mm)

15.9 ± 2.9

16 ± 2.6

14.9 ± 3.3

0.29

  1. Data are presented as mean ± standard deviation or number (percentage), unless otherwise stated