Reply to the Letter to the editor from Grappiolo G et al. to the article 'The History of the development of the regular straight stem in hip arthroplasty'

Affiliations

• ¹ Department of Orthopaedics, HFR Fribourg - Cantonal Hospital, Fribourg, Switzerland.
• ² RMS Foundation, Bettlach, Switzerland.
• ³ Institute for the History of Medicine, University of Bern, Bern, Switzerland.
• ⁴ Division of Orthopaedics and Trauma Surgery, Cantonal Hospital Winterthur, Winterthur, Switzerland.