Idiopathic hypertonicity as a cause of stiffness after surgery for developmental dysplasia of the hip

Abstract

INTRODUCTION: There are various complications reported with surgical treatment of DDH. Most studied complication is avascular necrosis of the femoral head and hip stiffness. The purpose of this report was to describe a case with severe stiffness of the hip due to hypertonicity in periarticular muscles after it was treated for developmental dysplasia of the hip (DDH).