先天性橈尺骨癒合症について

抄録

Synostosis radioulnaris congenita is rare case of deformity. In 1932, Chasmn reported 156 cases, which he observed for many years. In our country, only 20 cases have been observed until 1955. The authors report 6 cases, in the present paper, which had been observed from 1925 to 1951 in the Yamanaka National Hospital.
The authors conducted therapeutic operations in 4 cases, and reexamined the results of 3 cases. Following-up periods varied from 1 year to 3 years. The operations were tried in order to obtain active movements of rotation, especially, external rotation. Method of the operation was the chiseling of the portion of the synostosis and osteotomy of radius, in principle. Results of the operations were not satisfactory ones, however, the patients gained to take the middle position, which allowed complementary rotation of shoulder-Joint, for the part of forearm.
The authors concluded, as Chasmn and Jinnaka reported, that the purpose of the operation in synostosis radioulnaris congenita is to acquire the middle position of forearm, and the operation shall be conducted in severe cases only.