Proximal focal femoral deficiency—A rare entity in the sonographic differential diagnosis of developmental dysplasia of the hip - 15/08/11

Ralph Kayser, MD ^⁎ , Konrad Mahlfeld, MD, Henning Grasshoff, MD

Orthopedic Clinic, Otto von Guericke University, Magdeburg, Germany 

Reprint requests: Ralph Kayser, MD, Department of Trauma and Reconstructive Surgery, Charite - University Medicine Berlin, Campus “Benjamin Franklin,” Hindenburgdamm 30, D-12200 Berlin, Germany. Phone: +49 30 8445 4848, Fax: +49 30 8445 4464

Harry Rudolph Merk, MD

Orthopedic Clinic, Ernst Moritz Arndt University, Greifswald, Germany