Table 2 Bone marrow lesion scores and distribution of bone mineral density of proximal tibia.

From: Association between bone marrow lesions and bone mineral density of the proximal tibia in end-stage osteoarthritic knees

 

Males

Females

p-value

Mean

Min.–Max

Mean

Min.–Max

Bone marrow lesion scores

 Medial femoral condyle

2.1 ± 1.5

0–6

1.9 ± 1.5

0–6

0.080

 Medial tibial plateau

3.3 ± 2.4

0–9

3.5 ± 2.6

0–9

0.418

 Medial femorotibial joint

5.5 ± 3.5

0–15

5.5 ± 3.8

0–15

0.743

 Lateral femoral condyle

0.5 ± 1.1

0–6

0.5 ± 1.0

0–6

0.913

 Lateral tibial plateau

0.5 ± 1.2

0–9

0.5 ± 1.2

0–9

0.939

 Lateral femorotibial joint

1.0 ± 2.0

0–15

1.0 ± 1.9

0–14

0.864

 Patellofemoral joint

1.3 ± 1.5

0–8

1.1 ± 1.3

0–10

0.145

 Whole joint

8.7 ± 5.9

0–26

8.5 ± 5.8

0–38

0.817

Bone mineral density

 Medial

0.87 ± 0.18

0.41–1.14

0.78 ± 0.17

0.33–1.60

< 0.001

 Lateral

0.69 ± 0.18

0.30–1.21

0.56 ± 0.13

0.18–1.24

< 0.001

 Metaphysis

0.81 ± 0.19

0.30–1.35

0.66 ± 0.17

0.20–1.31

< 0.001

 MTP/LTP ratio

1.31 ± 0.32

0.46–2.55

1.44 ± 0.38

0.52–4.03

< 0.001

 MTP/metaphysis ratio

1.10 ± 0.24

0.66–1.74

1.23 ± 0.32

0.50–3.68

< 0.001

 LTP/metaphysis ratio

0.88 ± 0.29

0.40–2.99

0.87 ± 0.21

0.34–2.04

0.370

  1. Significant values are in [bold].
  2. Means ± standard deviations of six compartments in the knee joint are shown, and values between males and females are compared using Mann–Whitney U test. Means ± standard deviations of medial, lateral, and metaphysis are shown. The medial tibial plateau/lateral tibial plateau (MTP/LTP), MTP/metaphysis, and LTP/metaphysis ratios of bone marrow density are shown, and their values are compared using Mann–Whitney U test.
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