@article{oai:niigata-u.repo.nii.ac.jp:00023215,
 author = {皆川, 元},
 issue = {12},
 journal = {新潟医学会雑誌, 新潟医学会雑誌},
 month = {Dec},
 note = {Residual acetabular dysplasia or subluxation of the hip joint still today tends to occur even after treatment with Pavlik harness and particularly in cases with delayed initial treatment with plaster casting. It is mandatory that the CE-angle is greater than 20° at the age of 12, when the growth of the hip joint is completed, in order to obtain a satisfactory result of treatment of the congenital dislocation of the hip joint. On the other hand, the final treatment should be desirably completed by 5-6 years of age in our social environment at which attendance to grammar school starts. Therefore, it is worthwhile to find any roentgenologic indicators at the age of 5-6, which can prognosticate whether the CE-angle at the age of 12 will reach at least to 20°or not, because, if not, acetabuloplasty such as Salter’s can be performed at the age of 5-6. For this purpose, the author tried to find appropriate indicators for this prognostication by multiple regression analysis through investigating sequential X-rays of 100 hip joints of 78 cases with CDH which were treated with Lorenz' plaster casting during the period from 1961 to 1975 in the Dept. of Orthopaedic Surgery, Niigata University. The cases include 4 males and 74 females. The investigated hip joints were classified by the grade of their formation at the final examination into three groups, i.e. group 1 with CE-angle over　20°group　2 with that between 19°and 6°and group 3 with that less than 5°and these groups were correlated by the multiple regression analysis with CE-angle, acetabular index(AI) and epiphyseal index(EI) measured in X-rays taken at the initial examination, at the age of 2-3 and 5-6. Multiple correlation coefficient between CE-angle at the final examination and the X-ray indicators above mentioned up to 5-6 years was 0.84709, indicating high correlation. If only the latters at the age of 5-6 years were considered, the coefficient is 0.7865. With this multiple correlation equation, the author made a table in which CE-angles in relation to AI and El at 5-6 years of age are displayed, which are expected to develop to over 20°after cessation of growth of the hip joint. This table indicates that the CE-angle measured at the age of 5-6 years smaller than that in this table in relation to AI and El leads to poor result to be classified to group 2 or 3.},
 pages = {770--783},
 title = {就学期に先天性股関節脱臼の最終成績を予測するレ線指標の検討},
 volume = {102},
 year = {1988}
}