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Table 3 Procedural checklist and Objective Structured Assessment of Technical Skill (OSATS) scale for laparoscopic suturing and knot tying

From: Does rating the operation videos with a checklist score improve the effect of E-learning for bariatric surgical training? Study protocol for a randomized controlled trial

Procedure assessment and OSATS    Yes/no
Needle position 1 1 Held at one half to two thirds distance from the tip  
2 Angle 90° ± 20°  
3 Uses tissue or other instrument for stability  
4 Attempts at positioning (≤3)  
Needle driving 1 (entry to incision) 5 Entry at 60° to 90° to tissue plane  
6 Driving with one movement  
7 Driving needle with wrist suppination  
8 Single point of entry through tissue  
9 Removes needle along its curve  
10 Pull suture through to establish short free end  
11 Suture placed accurately, on target  
Needle position 2 12 Held at one half to two thirds distance from the tip  
13 Angle 90° ± 20°  
14 Uses tissue or other instrument for stability  
15 Attempts at positioning (≤3)  
Needle driving 2 (entry in incision) 16 Driving with one movement  
17 Removes needle along its curve  
Techniques of knots 18 Correct C-loop  
19 Smoothly executed throw, no fumbles  
20 Knot laid flat without air knots  
21 Short free end maintained  
22 Correct inverse C-loop  
23 Smoothly executed throw, no fumbles  
24 Knot laid flat without air knots  
25 Correct third C-loop  
26 Smoothly executed throw, no fumbles  
27 Knot laid flat without air knots  
Pulling the suture 28 Needle on needle holder in view at all times  
29 Uses the pully concept  
30 Knot squared  
31 Appropriate tissue reapproximation without strangulation  
32 Good use of both hands to facilitate knot tying  
General 33 Kept needle in view at all times when grasping  
34 Non-dominant hand helps dominant hand in suturing