Table 2: Number of successful versus unsuccessful blind arthrocentesis in OA patients K-L Rö II.

Accuracy of  blind

arthrocentesis

 

K-L Rö II

131 HJ

18.5 ˂ BMI 32

116 HJ

32 ˂ BMI 38

15 HJ

Successful

97/131 (74%)

88/116 (75.9%)

9/15 (60%)

Unsuccessful

34/131 (26%)

28/116 (24.1%)

6/15 (40%)