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Table 1 Characteristics of the included studies

From: Fixed-bearing vs mobile-bearing prostheses for total knee arthroplasty after approximately 10 years of follow-up: a meta-analysis

First author

Young-Hoo Kim

Steven T. Woolson

B. G. Pijls

N. Poirier

M. P. Abdel

A. J. Powell

Publication year

2009

2011

2012

2015

2018

2018

Country

South Korea

USA

Netherlands

France

USA

New Zealand

Number of patients in fixed/mobile group

61/61

26/23

33

31/30

61/53

72

Number of male patients in fixed/mobile group

16

5/3

13/14

Number of knees in fixed/mobile group

122/122

30/31

21/21

31/30

66/53

46/39

Mean age in fixed/mobile group

48.3 (range 34–55)

77.9 (range 56–96)/78 (range 48–91)

66 (SD 14)/64 (SD 11)

72 (SD 6)/70 (SD 6)

Mean BMI in fixed/mobile group

29.2/27.7

27 (SD 5.4)/27 (SD 3.1)

Posterior cruciate-retaining or not

Yes

No

No

No

No

Yes

Manufacturer of implants in fixed/mobile group

DePuy/DePuy

Zimmer/DePuy

Stryker-Howmedica/Stryker-Howmedica

Zimmer/Zimmer

DePuy Synthes/DePuy Synthes

DePuy Synthes/DePuy Synthes

Follow-up duration

Mean 10.8 years (range, 10–12 years)

10 years (range 116–160 months)

10 to 12 years

9 years (SD 1.3)

Median 10 years (IQR 9.2 to 10.4)

10 years

  1. SD, standard deviation; IQR, interquartile range; BMI, body mass index