The Association of Myotonia Congenita and Ankylosing Spondylitis

Abstract

This is the first report about the association of ankylosing spondylitis and myotonia congenita. Ankylosing spondylitis is a systemic rheumatologic disease that is characterized by axial skeletal inflammation and accompanied by systemic involvement. The most significant findings of myotonia are the stiffness and the delayed relaxation following the muscle contraction. Both of these pathologies can cause stiffness and also delaying of diagnosis of each other.