Table 1 Comparison of the operative data between the two studied groups

Operative duration (min)

• Total

Mean ± SD.

96.50 ± 38.60

107.4 ± 34.71

U = 521.00

0.174

Median (Min. – Max.)

90 (50–180)

100 (60–210)

• Lap time in lap assisted.

Mean ± SD.

–

59.59 ± 22.74

–

–

Median (Min. – Max.)

–

55 (30–120)

• TAPT time

Mean ± SD.

96.50 ± 38.60

47.81 ± 18

U = 159.50^*

< 0.001^*

Median (Min. – Max.)

90 (50–180)

45 (20–90)

Length of the resected segment (cm)

• Total

Mean ± SD.

28 ± 4.05

22.70 ± 8.12

U = 308.00

< 0.001^*

Median (Min. – Max.)

30 (20–35)

20 (11–45)

• The dilated segment

Mean ± SD.

20.87 ± 4.22

11.16 ± 4.63

U = 97.00^*

< 0.001^*

Median (Min. – Max.)

20 (15–30)

10 (2–22)

• The narrow segment

Mean ± SD.

7.13 ± 2.50

7.50 ± 3.94

U = 606.00

0.689

Median (Min. – Max.)

5 (5–10)

6 (2–18)