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. 2024 Dec 2;11(4):e70072. doi: 10.1002/jeo2.70072

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© 2024 The Author(s). Journal of Experimental Orthopaedics published by John Wiley & Sons Ltd on behalf of European Society of Sports Traumatology, Knee Surgery and Arthroscopy.

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Method for measuring femoral component rotation using computed tomography. Femoral component rotation was evaluated on the axial slice where two femoral pegs and the medial and lateral epicondyles were visible. Femoral rotation was the angle between the line connecting the two pegs (L _peg) and the surgical epicondylar axis (L _SEA). The rotational position was classified into three groups: internal rotation from the surgical epicondylar axis (I), 0–3° external rotation (N), and >3° external rotation (E). SEA, surgical epicondylar axis.