Table 3 Mean and median values or TMV

TMV - pre

32

9.41 ± 0.45

9.50 (9.00–9.70)

TMV - post 3 months

8

9.31 ± 0.71

9.35 (8.60–10.00)

TMV - post 6 months

8

9.14 ± 0.37

9.15 (8.77–9.45)

TMV - post 1 year

12

9.34 ± 0.59

9.30 (8.75–9.97)

TMV - post 2 years

14

9.46 ± 0.57

9.70 (9.20–9.90)

TMV - post 3 years

24

9.36 ± 0.40

9.35 (9.20–9.70)

TMV - post 4 years

39

9.03 ± 0.68

9.20 (8.60–9.50)