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. 1981 Feb;63-B(1):43-7.
doi: 10.1302/0301-620X.63B1.7204473.

The sagging rope sign in Perthes' disease and allied disorders

A G Apley, S Wientroub

The sagging rope sign in Perthes' disease and allied disorders

A G Apley et al. J Bone Joint Surg Br. 1981 Feb.

Abstract

The sagging rope sign is the term used to describe the radiographic appearances which sometimes occur after Perthes' disease. It is severe examples of that disease and indicates damage to the growth plate with a marked metaphysial reaction. The same appearance follows severe epiphysitis after forcible reduction of a congenitally dislocated hip, and certain rare epiphysial dysplasias. The origin and significance of the sign are discussed.

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