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Table 2 Radiographic and US characteristics of the studied patients

From: Role of global femoral cartilage in assessing severity of primary knee osteoarthritis

Radiographic (KL) grade, n (%)

 I

3 (7.5)

 II

18 (45)

 III

16 (40)

 IV

3 (7.5)

Ultrasonographic features, n (%)

GFC grade

  1

7 (17.5)

  2a

12 (30)

  2b

16 (40)

  3

5 (12.5)

Lateral osteophyte grading

  1

13 (32.5)

  2

23 (57.5)

  3

4 (10)

Medial osteophyte grading

  0

2 (5)

  1

10 (25)

  2

14 (35)

  3

14 (35)

MME

  < 0.3

18 (45)

  ≥ 0.3

22 (55)

LME

  < 3 mm

28 (70)

  ≥ 3 mm

12 (30)

Effusion

  Yes

34 (85)

  No

6 (15)

Baker’s cyst

  Yes

11 (27.5)

  No

29 (72.5)

  1. SD standard deviation, GFC global femoral cartilage, MME medial meniscal extrusion, LME lateral meniscal extrusion