The Journal of Bone and Joint Surgery (American) 62:554-556 (1980)
© 1980 The Journal of Bone and Joint Surgery, Inc.
Primary Anterior Congenital Dislocation of the Hip in Infancy*
H. R. Mccarroll, M.D. and
H. R. Mccarroll, Jr., M.D.
From the Division of Orthopaedics, Department of Surgery, Washington
University School of Medicine, Saint Louis
Primary anterior congenital dislocation of the hip can be diagnosed in
infancy as an entity distinct from the more common posterior dislocation.
Anterior dislocations are characterized by a visible and palpable fullness in
the femoral triangle, marked limitation of abduction, a severe pelvic tilt or
obliquity, marked apparent shortening of the limb on the involved side,
absence of telescoping, and a rest position of external rotation.
Conservative treatment is recommended. An abduction splint should be used
to minimize the adduction contracture before a closed reduction is performed
under general anesthesia. The position of a stable reduction is one of
flexion, abduction, and internal rotation. Immobilization in a spica cast is
required for six or seven months. Most patients will require a derotation
osteotomy for correction of anteversion of the femoral neck during this
time.

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