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Table 4 Comparison of patient-reported outcome measures

From: Robotics versus personalized 3D preoperative planning in total knee arthroplasty: a propensity score-matched analysis

 

3D preoperative planning group

(n = 104)

Robotics group

(n = 52)

P value

KSS Knee scores (100points)

Pre-op

60.2 ± 18.2

61.2 ± 16.2

0.745

3 months

83.9 ± 9.3

84.4 ± 8.0

0.741

6 months

92.3 ± 9.4

93.0 ± 8.0

0.681

12 months

95.9 ± 8.8

96.8 ± 6.1

0.473

Function scores (100points)

Pre-op

43.9 ± 21.2

44.6 ± 20.6

0.851

3 months

65.5 ± 10.2

66.9 ± 9.9

0.418

6 months

92.0 ± 13.2

93.4 ± 10.7

0.509

12 months

96.8 ± 14.0

98.6 ± 9.1

0.406

Total score (200points)

Pre-op

104.1 ± 30.5

105.8 ± 33.1

0.758

3 months

149.4 ± 17.4

151.3 ± 15.5

0.508

6 months

184.3 ± 21.0

186.3 ± 16.7

0.546

12 months

192.6 ± 22.4

195.4 ± 14.6

0.421

WOMAC Pain (100points)

Pre-op

63.7 ± 18.1

63.0 ± 15.7

0.807

3 months

84.8 ± 12.9

86.4 ± 11.8

0.457

6 months

91.1 ± 11.5

90.3 ± 13.6

0.712

12 months

96.2 ± 6.3

95.8 ± 7.7

0.740

Stiffness (100points)

Pre-op

69.8 ± 23.7

71.2 ± 22.9

0.740

3 months

81.7 ± 12.7

81.5 ± 12.5

0.911

6 months

87.5 ± 17.2

85.6 ± 18.4

0.522

12 months

95.0 ± 9.3

95.0 ± 9.3

1.000

Function (100points)

Pre-op

62.5 ± 14.9

62.1 ± 15.7

0.865

3 months

89.6 ± 8.7

89.1 ± 9.3

0.716

6 months

92.5 ± 10.7

92.2 ± 11.8

0.875

12 months

97.5 ± 5.4

97.1 ± 7.0

0.697

Total score (100points)

Pre-op

65.4 ± 15.7

65.4 ± 15.0

0.984

3 months

85.4 ± 9.0

85.6 ± 9.0

0.863

6 months

90.3 ± 11.9

89.4 ± 13.5

0.639

12 months

96.2 ± 5.5

95.9 ± 6.6

0.794

  1. KSS, Knee Society Score; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index. The t test was used for all