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Table 2 Analysis of Preoperative and Postoperative Oxford Knee Scores (OKS) Between Hybrid and Cemented OUKA Using Generalized Estimating Equation

From: Hybrid Oxford unicompartmental knee arthroplasty has lower residual cement extrusion than cemented arthroplasty in treating end-stage unicompartmental knee osteoarthritis

 

B

SE

95% CI

Wald Chi-Square

P

Constant

21.93

0.83

20.31 to 23.55

702.05

<0.001

Hybrid OUKA

1.49

1.25

-0.96 to 3.94

1.42

0.234

Cemented OUKA

0.00

    

2 Years

19.19

1.06

17.12 to 21.27

328.32

<0.001

1 Year

19.77

1.28

17.28 to 22.27

240.69

<0.001

6 Months

17.95

1.15

15.69 to 20.20

243.11

<0.001

3 Months

15.57

1.09

13.43 to 17.72

202.94

<0.001

6 Weeks

13.37

1.17

11.08 to 15.66

131.44

<0.001

Pre-operation

0.00

    

Hybrid OUKA *2 Years

-2.53

1.57

-5.60 to 0.55

2.60

0.107

Hybrid OUKA *1 Years

-1.95

1.60

-5.08 to 1.18

1.49

0.223

Hybrid OUKA *6 Months

-1.29

1.54

-4.32 to 1.74

0.70

0.404

Hybrid OUKA *3 Months

0.32

1.57

-2.76 to 3.40

0.04

0.837

Hybrid OUKA *6 Weeks

0.54

1.54

-2.48 to 3.57

0.12

0.726

  1. LEGEND: OUKA Oxford unicompartmental knee arthroplasty