The interosseous tuberosity of radius: a descriptive radiological and cadaveric anatomical study
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ORIGINAL ARTICLE
The interosseous tuberosity of radius: a descriptive radiological and cadaveric anatomical study Gregoire Rougereau1,2 · Barthelemy Valteau1 · Maud Creze3 · Marc Soubeyrand4 Received: 10 May 2020 / Accepted: 3 October 2020 © Springer-Verlag France SAS, part of Springer Nature 2020
Abstract Purpose The radius is described with a single tuberosity: the radial tuberosity. However, we hypothesize that there is a second tuberosity on the interosseous border of the radius: which we propose to call the interosseous tuberosity – Tuberositas interossea radii – (IT). Methods First, we analyzed all anteroposterior radiographs of the forearm (48 females, 54 males; 62 lefts and 40 rights) as well as CT scans (6 females, 7 males; 5 lefts and 8 rights) carried out during one year in our hospital. We evaluated the presence of IT, its length, thickness of the interosseous cortex at IT level, above and below compared with anterior, posterior and lateral bone cortices. In the second part of the study, we dissected cadaveric forearms to determine which ligaments and muscles were attaches on the IT. Results A total of 102 standard forearm radiographs and 13 CT-scans were analyzed. In all cases, an IT was present. The mean tuberosity length was 93.9 mm (+ / − 15.8), which corresponds to 37% (+ / − 5) of total radial length. IT corresponds to a significant thickening (7.6 mm than 4.2 mm and 4.3 mm below; p
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