© 1977 British Society for Rheumatology
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REFLEX SYMPATHETIC DYSTROPHY
Department of Rheumatology, Prince Edward Memorial Hospital Grange Road, Rhyl, Clwyd
This paper describes a patient with typical post-traumatic Sudeck's atrophy of the right foot, who subsequently developed an atraumatic, painful osteoporosis of the left foot and right knee.
It is suggested that cases of migrating osteolysis and transient osteoporosis of the lower limbs be grouped with classical Sudeck's atrophy as a reflex sympathetic dystrophy.
Theories of pathogenesis have been reviewed and a possible theory of causation in atrauma-tic cases is presented.