caa a22 4500 463199618 CHVBK 20180405153108.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s00276-007-0206-4 doi (NATIONALLICENCE)springer-10.1007/s00276-007-0206-4 Morphometric parameters of the radial neck: an anatomical study [Elektronische Daten] [T. Koslowsky, F. Beyer, I. Germund, K. Mader, M. Jergas, J. Koebke] Introduction: The purpose of this study was to describe the anatomy of the intramedullary canal of the radial neck for stem design of radial head prostheses. Methods: Radial neck measurement was performed from the proximal edge of the radial tuberosity to the distal border of the articular surface on 40 macerated proximal radii using X-rays and Optosil imprints of the intramedullary canal. Radial neck to shaft angle was measured under image intensification. Results: The neck length was 13.3mm (range 8.0-20.0mm) measured on X-rays and 13.5mm (range 9.9-18.8mm) on Optosil imprints. Concerning the neck's intramedullary canal we obtained a minimum diameter of 9.7mm (range 6.3-16.4mm) on X-ray. Corresponding Optosil imprints had a mean diameter of 11.6 mm (range 6.6-18.6mm) at their proximal end, 10.5mm (range 5.5-16.3mm) in the middle and a minimum of 9.8mm (range 6.0-16.9mm) at the distal end. Differences between left and right sides were not significant between X-ray and Optosil imprints, nor between left X-ray and right imprints and vice versa at a P-level of 0.001. Radial neck to shaft angle was 167.8° (range 160.5-178°) measured under image intensification at a rotation angle of 58.6° (range 50-70°) supination. Conclusion: Geometry of the radial neck's intramedullary canal has been described for stem design. The minimum diameter was seen at the distal end, just proximal to the radial tuberosity. A forearm rotation of 58.6° to full supination should be considered during implantation of monopolar prostheses. The wide variety of lengths and diameters complicates standard prosthetic design, but ipsilateral and contralateral X-rays can be useful for preoperative stem size calculation. Springer-Verlag, 2007 Radial head fractures nationallicence Radial neck nationallicence Anatomy nationallicence Radial head prosthesis nationallicence Koslowsky T. Department of Surgery, St. Elisabeth Hospital, Werthmannstrasse 1, 50935, Cologne, Germany aut Beyer F. Department of Anatomy, University of Cologne, Joseph Stelzmann Strasse 9, 50935, Cologne, Germany aut Germund I. Department of Anatomy, University of Cologne, Joseph Stelzmann Strasse 9, 50935, Cologne, Germany aut Mader K. Department of Anatomy, University of Cologne, Joseph Stelzmann Strasse 9, 50935, Cologne, Germany aut Jergas M. Department of Radiology, St. Elisabeth Hospital, Werthmannstrasse 1, 50935, Cologne, Germany aut Koebke J. Department of Anatomy, University of Cologne, Joseph Stelzmann Strasse 9, 50935, Cologne, Germany aut Surgical and Radiologic Anatomy Springer-Verlag 29/4(2007-05-01), 279-284 0930-1038 29:4<279 2007 29 276 https://doi.org/10.1007/s00276-007-0206-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00276-007-0206-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Koslowsky T. Department of Surgery, St. Elisabeth Hospital, Werthmannstrasse 1, 50935, Cologne, Germany aut NATIONALLICENCE 700 1- Beyer F. Department of Anatomy, University of Cologne, Joseph Stelzmann Strasse 9, 50935, Cologne, Germany aut NATIONALLICENCE 700 1- Germund I. Department of Anatomy, University of Cologne, Joseph Stelzmann Strasse 9, 50935, Cologne, Germany aut NATIONALLICENCE 700 1- Mader K. Department of Anatomy, University of Cologne, Joseph Stelzmann Strasse 9, 50935, Cologne, Germany aut NATIONALLICENCE 700 1- Jergas M. Department of Radiology, St. Elisabeth Hospital, Werthmannstrasse 1, 50935, Cologne, Germany aut NATIONALLICENCE 700 1- Koebke J. Department of Anatomy, University of Cologne, Joseph Stelzmann Strasse 9, 50935, Cologne, Germany aut NATIONALLICENCE 773 0- Surgical and Radiologic Anatomy Springer-Verlag 29/4(2007-05-01), 279-284 0930-1038 29:4<279 2007 29 276 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 463199480 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer