Clinical Use of the Chamberlain Technic in Sacroiliac Conditions

The question of sacroiliac slip has been discussed for years. Snelling published a paper on this subject in 1870. Goldthwaite and Osgood made an important contribution in 1905. Fick, Smith-Petersen and others have also made their contributions. There seems to be no question at the present time but that the sacroiliac joint is a movable joint. Chamberlain in 1919 first began to use his x-ray technic of demonstrating slipping of the sacroiliac joints. He read a report on this subject at a meeting of the American Roentgen Ray Society in September 1922. Allen published the description of a somewhat similar technic in 1923. Chamberlain1has published papers in 1930 and 1932 on this subject. Chamberlain states that "there is no reason to expect the ordinary anteroposterior view of the sacroiliac region to reveal the normal or abnormal movement occurring in these joints because motion of the sacroiliac joint is