Journal of Bone and Joint Surgery, 1942;24:653-662.
© 1942 by The Journal of Bone and Joint Surgery, Inc
EPIPHYSEAL PSEUDARTHROSIS
Henry Milch M.D.1
1 Hospital for Joint Diseases, New York
Epiphyseal pseudarthrosis at the hip has been observed under the following conditions:
1. After operative fusion of the hip,
2. After inflammatory ankylosis of the hip,
3. As a sequel to adolescent epiphysiolysis.
It may occur in any condition in which the capital epiphysis becomes ankylosed before closure of the epiphyseal plate occurs. Mechanically, mobility of the shaft of the femur, with respect to a relatively fixed head, is essential to the appearance of the condition. Successful therapy is based upon immobilization of the distal fragment in relation to the proximal fragment.
Recognition of the condition is of paramount importance in explaining some cases of apparent failure after an attempt at operative fusion of the hip. Appreciation of its cause throws interesting light on the pathogenesis of adolescent epiphysiolysis.