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Table 4 Comparisons of operating room times (minutes) between raTKA groups of ten, all three surgeon’s cases combined, reported as mean (SD)

From: The initial learning curve for the ROSA® Knee System can be achieved in 6-11 cases for operative time and has similar 90-day complication rates with improved implant alignment compared to manual instrumentation in total knee arthroplasty

Variable

1 – 10, n = 30

11 – 20, n = 30

21 – 30, n = 30

P value

Surgical Time

101.6 (11.6)

85.7 (9.4)

86.48 (6.94)

< 0.001

Robotic Setup Time

8.9 (1.9)

7.5 (1.1)

7.3 (0.80)

<.0001

Surgical Approach Time

9.5 (1.7)

8.9 (1.5)

8.6 (1.3)

0.074

Bone Registration

10.3 (2.0)

8.2 (1.7)

7.5 (1.4)

< 0.001

Joint balancing

7.0 (1.9)

3.8 (0.7)

4.1 (1.4)

< 0.001

Bone preparation

28.8 (6.0)

25.7 (3.1)

26.4 (3.5)

0.020

Implant Trialing

17.3 (4.0)

14.9 (4.3)

13.5 (2.7)

< 0.001