Table 2 Distribution of prevalent cysts according to baseline severity of effusion and synovitis

Effusion

N = 179

N = 80

N = 50

N = 10

   Popliteal cyst

74 (41)

34 (43)

15 (30)

5 (50)

   Subgastrocnemius bursitis*

20 (11)

16 (20)

8 (16)

5 (50)

   Proximal tibiofemoral joint cyst

13 (7)

7 (9)

4 (8)

2 (20)

Synovitis

N = 121

N = 128

N = 61

N = 9

   Popliteal cyst

41 (33)

59 (46)

25 (41)

3 (33)

   Subgastrocnemius bursitis**

11 (9)

21 (16)

15 (25)

2 (22)

   Proximal tibiofemoral joint cyst

8 (7)

12 (9)

4 (7)

2 (22)