1979 年 39 巻 5 号 p. 591-594
Definite and classical rheumatoid arthritis (R. A.) in our clinic were examined in relation of the period of contraction and roentgenogram. Sixty-nine patients of R. A., 138 hips were studied by roentgenography, who were male 9 and female 60, ranged from 24 to 76 years of age. We observed several roentgenological changes and obtaind the following results :
1) The narrowing of joint space were observed in 7 cases, i.e. 9 joints. The past history were 12.3 years on the average.
2) The desetruction of bone were observed in 5 cases, i.e. 8 joints. The past history were 13.6 years on the average.
3) The luxation were observed in 8 cases, i.e. 12 joints. The past history were 14.3 years on the average.
4) In one side of 6 cases which undergone T. H. R., in other side roentgenological changes were observed in weigting 4 cases, on which undergone T. H. R. soon after.