Page 37 - WJOLS

WJOLS

Is there an Ideal Port Position for Laparoscopic Urological Procedures?

Table 5B: Time for surgeon’s knotting in pelvis with
manipulation angle 60º
Sl. Observed time
no. in Expected (O-E) 2
sec. (O) time (E) O-E (O-E) 2 E
1 120 116.50 3.5 12.25 0.11
2 120 3.5 12.25 0.11
3 121 4.5 20.25 0.17
4 118 1.5 2.25 0.48
5 109 – 7.5 56.25 0.02
6 115 – 1.5 2.25 1.05
7 120 3.5 12.25 0.02
8 115 – 1.5 2.25 0.17
9 121 4.5 20.25 0.02
10 118 1.5 2.25 0.48
Graph 4: timing of ring transfer in the pelvis 11 109 – 7.5 56.25 0.17
12 112 – 4.5 20.25 0.05
13 111 – 5.5 30.25 0.26
14 119 2.5 6.25 0.05
15 114 – 1.5 2.25 0.02
16 118 1.5 2.25 0.02
17 125 8.5 72.25 0.62
18 115 – 1.5 2.25 0.02
19 119 2.5 6.25 0.05
20 121 4.5 20.25 0.17
2
Average time = c = 4.08
116.50
2
p-value (30.144) > c , so data are reproducible
Table 5C: Time for surgeon’s knotting in pelvis with
Fig. 9: instruments and ports at different positions of manipulation angle 90º
task performance
Sl. Observed
Table 5A: Time for surgeon’s knotting in pelvis with no. time in Expected (O-E) 2
manipulation angle 30º sec (O) time (E) O-E (O-E) 2 E
1 190 210.55 – 20.55 422.30 2.01
Sl. Observed time Expected (O-E) 2
no. in sec. (O) time (E) O-E (O-E) 2 E 2 220 9.45 89.30 0.42
1 156 160.60 – 4.6 21.16 0.13 3 197 – 13.55 183.60 0.87
2 169 8.4 70.56 0.44 4 182 – 28.55 815.10 3.87
3 156 – 4.6 21.16 0.13 5 182 – 28.55 815.10 3.87
4 162 1.4 1.96 0.01 6 172 – 38.55 1486.10 7.06
5 159 – 1.6 2.56 0.02 7 183 – 27.55 759.00 3.60
6 137 – 23.6 556.96 3.47 8 224 13.45 180.90 0.86
7 159 – 1.6 2.56 0.01 9 221 10.45 109.20 0.52
8 182 21.4 457.96 2.85 10 235 25.55 652.80 3.10
9 161 0.4 0.16 0.00 11 272 61.45 3776.0 17.93
10 139 – 21.4 466.56 2.91 12 208 – 13.55 183.60 0.87
11 142 – 18.6 345.96 2.15
12 144 – 16.6 275.56 1.72 13 223 12.45 155.00 0.74
13 184 23.4 547.56 3.41 14 204 – 6.55 42.90 0.20
14 162 1.4 1.96 0.01 15 207 – 3.55 12.60 0.056
15 182 21.4 457.96 2.85 16 219 8.45 71.40 0.34
16 161 – 0.4 0.16 0.00 17 226 15.45 238.70 1.13
17 156 – 4.6 21.16 0.13 18 240 29.45 867.30 4.12
18 182 21.4 457.96 2.85 19 234 23.45 549.90 2.61
19 156 – 4.6 21.16 0.13 20 224 13.45 180.90 0.86
20 163 2.4 5.76 0.04 Average c = 59.17
2
2
Average time = c = 23.26 time =
160.60 210.55
2
p-value > c , data are reproducible p-value (30.144) < c , data are nonreproducible
2
World Journal of Laparoscopic Surgery, May-August 2014;7(2):74-87 83