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. 2021 Feb 18;16:249–256. doi: 10.1016/j.jcot.2021.02.014

Table 6.

Combined (intermediate + expert) mean scores for individual questions.

Question Mean Score ± Standard Deviation
Percentage (%) of participants giving a satisfactory score (≥7)
Active Haptic Simulator Passive Haptic Simulator Active Haptic Simulator Passive Haptic Simulator

Outer Appearance
1. To what extent do you think the outer appearance of the knee simulator represents reality? 5.95 ± 1.82 7.79 ± 1.09 32 84
2. Is it clear which joint you are operating on? 7.00 ± 2.19 9.08 ± 1.10 58 100
3. Is it clear which portals are being used? 6.87 ± 2.34 8.39 ± 1.46 55 89

Intra-articular Appearance
4. How realistic is the intra-articular anatomy? 4.92 ± 2.12 8.00 ± 1.38 21 89
5. How realistic is the texture of the structures? 4.34 ± 2.03 6.74 ± 2.27 16 66
6. How realistic is the colour of the structures? 4.66 ± 2.00 7.63 ± 1.48 21 87
7. How realistic is the size of the structures? 5.32 ± 1.66 8.11 ± 1.61 26 92
8. How realistic is the size of the intra-articular joint space? 4.92 ± 2.01 7.58 ± 1.57 26 82
9. How realistic is the arthroscopic image? 4.50 ± 1.80 7.87 ± 1.47 13 87


Instrumentation
10. How realistic do the instruments look? 5.42 ± 2.04 8.21 ± 1.34 34 84
11. How realistic is the motion of the instruments? 4.79 ± 1.76 7.92 ± 6.58 13 87
12. How realistic does the cartilage feel when you are probing (femoral condyle, tibial plateau)? 4.18 ± 2.10 6.58 ± 2.39 11 63
13. How realistic do the intra-articular ligaments feel (ACL, PCL)? 4.11 ± 2.00 6.89 ± 2.18 16 58
14. How realistic does the meniscus feel? 3.74 ± 1.67 6.79 ± 2.30 8 55
15. How realistic is the feedback from the intra-articular structures? 3.89 ± 2.01 6.87 ± 2.22 11 66


User-friendliness
16. How clear are the instructions to start an exercise on the simulator? 5.87 ± 1.88 8.42 ± 1.50 32 89
17. How clear is the presentation of your performance on the simulator? 5.24 ± 1.81 8.74 ± 1.37 24 87
18. Is it clear how you can improve your performance? 5.13 ± 2.17 8.29 ± 1.37 29 87
19. How motivating is the way the results are presented? 5.34 ±
1.91
8.47 ± 1.33 24 89