I. In certain selected cases of so-called irreducible paralytic dislocations of the hip, we can give correction of deformity with function.
II. Hoffa's belief, based on experiments on the cadaver, that rupture of the blood vessels and nerves must occur in old longstanding cases before surgical correction of the shortening can be obtained, does not hold true in the living.
III. Muscles in paralytic hips that are able by their contractures to perpetuate a dislocation at the hip are also able to perpetuate function if the dislocation can be reduced. Arthrodesis should not therefore be the method of choice except in flail hips.
(C) 1920 All Rights Reserved.The Journal of Bone and Joint Surgery, Inc.