A total of 2 subjects were excluded from diclofenac group because of one subject experiencing dyspepsia on the seventh day of treatment without improvement with the provision of omeprazole 10 mg 1 tablet daily and the other with the synovial fluid was not able to be found in the second aspiration. So the number of subjects in the diclofenac group who followed the study through to completion was 39, consisting of 11 men and 28 women