Table 1 Descriptive statistics of the clinical parameters measured at baseline and 6 months after surgery

GT

 Baseline

0.94 ± 0.19 (0.50–1.31)

0.94 ± 0.23 (0.35–1.53)

 6 months

1.02 ± 0.16 (0.63–1.50)

1.31 ± 0.33 (0.81–2.05)

 p^b

0.000**

0.000**

GH

 Baseline

2.61 ± 0.51 (2.01–3.80)

2.60 ± 0.49 (1.76–3.90)

 6 months

2.69 ± 0.42 (2.01–4.11)

2.67 ± 0.35 (2.00–3.39)

 p^b

0.064

0.445

BT

 Baseline

1.04 ± 0.48 (0.91–1.14)

1.04 ± 0.04 (0.94–1.15)

 6 months

1.43 ± 0.04 (1.31–1.56)

1.43 ± 0.06 (1.32–1.58)

 p^b

0.000**

0.000**

BH

 Baseline

2.67 ± 0.69 (1.89–3.99)

2.71 ± 0.66 (1.21–3.85)

 6 months

1.71 ± 0.44 (1.01–2.18)

1.70 ± 0.48 (1.01–2.54)

 p^b

0.000**

0.000**