Skip to main content

Table 2 Mean differences and 95% confidence intervals of intraoperative time compared between NAVIO and MAKO robotically assisted unicompartmental knee arthroplasty

From: Comparison of 1-year outcomes between MAKO versus NAVIO robot-assisted medial UKA: nonrandomized, prospective, comparative study

Surgical stepsNAVIO robotically assisted UKA
(n = 16)
MAKO robotically assisted UKA
(n = 17)
Mean difference and 95% confidence intervalP value
Hip and ankle center registration5.6 (3.9, 7.2)2 (0.6, 3.4)3.6 (1.5, 5.7)0.001
Registration of femur and tibia8.4 (6.8, 10.0)5.4 (4.0, 6.8)3.0 (0.9, 5.1)0.005
Registration of ligament tension1.9 (0.2, 3.5)2.8 (1.4, 4.2)− 0.9 (− 3.1, 1.2)0.389
Implant planning6.1 (4.5, 7.7)5.2 (3.8, 6.5)0.9 (− 1.2, 3.0)0.398
Femoral preparation11.5 (9.9, 13.1)7.6 (6.2, 9.0)3.9 (1.8, 6.0)< 0.001
Tibial preparation8.2 (6.6, 9.8)8.0 (6.6, 9.4)0.2 (−1.9, 2.3)0.843
Trial implantation8.9 (7.2, 10.5)5.4 (4.0, 6.8)3.4 (1.3, 5.6)0.001
Total operative time, min, mean (SD)98.0 (8.4)82.5 (11.8)15.4 (8.1, 22.8)0.0002
  1. UKA unicompartmental knee arthroplasty