Skip to main content

Table 3 Values of the posterior condylar offset and the posterior condylar offset ratio of the femur in the literature

From: Sexual dimorphism of the posterior condylar offset of the femur and the medial posterior slope of the tibia in non-arthritic knees of Egyptian adults: an MRI study

Authors

Population

Method

Sample size

OL

OM

RL

RM

Class

Wang et al. [19]

Chinese

CT

100

27.3 ± 2.3

27.3 ± 2.3

0.5 ± 0.03

0.5 ± 0.03

M

(50 M, 50 F)

25.8 ± 2.7

25.8 ± 2.7

0.5 ± 0.04

0.5 ± 0.04

F

 

26.6 ± 2.5

26.6 ± 2.5

0.5 ± 0.03

0.5 ± 0.03

C

Koh et al. [18]

Korean

MRI

975

24.8 ± 2.4

26.8 ± 2.3

0.4 ± 0.06

0.4 ± 0.07

M

(150 M, 825 F)

24.2 ± 2.2

26.2 ± 2.2

0.5 ± 0.04

0.5 ± 0.04

F

 

24.3 ± 2.3

26.3 ± 2.2

0. 5 ± 0.05

0.5 ± 0.05

C

Voleti et al. [39]

49 Caucasian,

MRI

100

27.0 ± 2.0

30.0 ± 2.5

0.4 ± 0.05

0.5 ± 0.04

M

27 African American,

(50 M, 50 F)

25.0 ± 2.0

28.0 ± 2.7

0.4 ± 0.03

0.5 ± 0.05

F

16 Asian, 8 Hispanic

 

26.0 ± 2.2

29.0 ± 2.8

0.4 ± 0.04

0.5 ± 0.05

C

Weinberg et al. [8]*

366 Caucasian

Cadaveric

529 (461 M,

31.6 ± 3.5

32.9 ± 4.1

1.1 ± 0.2

1.2 ± 0.2

M

163 African American

61 F) cadaver,

30.2 ± 3.1

32.7 ± 4.4

1.1 ± 0.1

1.7 ± 0.2

F

 

1058 femora

31.2 ± 4.1

32.6 ± 3.8

1.1 ± 0.2#

1.2 ± 0.2#

C

Johal et al. [35]

Western (84.0% white,

X-rays

100

29.0 ± 2.0

29.0 ± 2.0

0.4 ± 0.02

0.4 ± 0.02

M

6.0% black, 5.5% Asian, 3.6% mixed

(50 M, 50 F)

27.2 ± 2.2

27.2 ± 2.2

0. 5 ± 0.02

0.5 ± 0.02

F

race, 3.0% Arabic 0.3%, 0.6% other)

 

28.1 ± 2.3

28.1 ± 2.3

0.4 ± 0.02

0.4 ± 0.02

C

Our study

Egyptian

MRI

200

24.6 ± 1.9

27.3 ± 2.5

0.4 ± 0.04

0.4 ± 0.04

M

(100 M,100 F)

22.5 ± 2.3

24.3 ± 2.6

0.4 ± 0.04

0.5 ± 0.05

F

 

23.5 ± 2.4

25.8 ± 2.9

0.4 ± 0.04

0.5 ± 0.04

C

  1. *Values standardized to the patient’s femoral size by dividing actual offset with the anteroposterior diameter of the femur as opposed to that of the femoral condyles hence differing greatly from other studies
  2. #Not applicable for mean comparison, C cohort, CT computed tomography, F female, M male, MRI magnetic resonance imaging, OL lateral posterior condylar offset of the femur (in millimeters), OM medial posterior condylar offset of the femur (in millimeters), RL lateral posterior condylar offset ratio of the femur, RM medial posterior condylar offset ratio of the femur