The effect of the orientation of the radial head on the kinematics of the ulnohumeral joint and force transmission through the radiocapitellar joint

Clinical Biomechanics
Roger van RietK N An

Abstract

Background. The treatment of radial head fractures that are not amenable to an open reduction and internal fixation, remains to be a difficult issue. A potential problem with prosthetic replacement of the radial head is the shape of current radial head prostheses. The purpose of this study was to determine the effect of the shape of the radial head on kinematics and load transfer of the elbow. Methods. Kinematics of the elbow and radiocapitellar force transmission were measured in 6 fresh frozen upper extremities. The effect of radial head shape was tested by rotating the head 90 degrees , with a custom-made 'native' radial head prosthesis. 3-D spatial orientation of the ulna showed an average difference in ulnohumeral laxity, between the nominal and 90 degrees conditions, of 0.1 degrees throughout the arc of motion with neutral forearm rotation (maximum: 2 degrees ). Findings. We found an average difference in ulnar axial rotation, of 0.1 degrees (maximum: 1.9 degrees ). No differences showed statistical significance. Radiohumeral joint force was measured and maximally showed a 32 times increase of force in the altered shape conditions. Interpretation. Our results show that the kinematics of the elbow was not affected by alter...Continue Reading

References

Oct 16, 1999·Clinical Biomechanics·T NakamuraN Yamazaki
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Dec 4, 2003·The Journal of Hand Surgery·Roger P van RietShawn W O'Driscoll

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Citations

Jul 7, 2014·The Journal of Hand Surgery·Michael CohnYoung W Kwon
Sep 18, 2010·Journal of Shoulder and Elbow Surgery·Klaus Josef BurkhartMüller P Lars
Mar 23, 2010·Clinical Biomechanics·Louis M FerreiraGraham J W King
Dec 29, 2009·Journal of Shoulder and Elbow Surgery·Fabian MoungondoFrédéric Schuind
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Apr 22, 2008·Journal of Shoulder and Elbow Surgery·Edward YianAlberto G Schneeberger
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Mar 4, 2014·PloS One·Pere Ibáñez-GimenoJoan Manyosa
May 15, 2013·Journal of Shoulder and Elbow Surgery·Maarten J De VosNico Verdonschot
Apr 16, 2005·Primary Care·Robb Sellards, Chris Kuebrich
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Aug 8, 2018·Journal of Orthopaedic Trauma·Daniel R BachmanShawn W O'Driscoll
Oct 9, 2019·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Chalotte K HemmingsenMaiken Stilling
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Oct 31, 2020·Shoulder & Elbow·Miguel DeschrijverAlexander Van Tongel

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