Linear relationship between lateralization of the bicipital groove and humeral retroversion and its link with the biepicondylar humeral line. Anatomical study of seventy cadaveric humerus scans

International Orthopaedics
Julien AndrinPierre Martz

Abstract

Morphological studies of the humerus have shown that the position of the bicipital groove varies with the individual and the retroversion of the humeral head. Depending on the authors, these two parameters are independent or associated. This study evaluated the relationship between the humeral head axis and its retroversion and the bicipital groove relative to the humeral biepicondylar line. Seventy cadaveric humeri were scanned to obtain 3D reconstructions. Views of the 3D reconstruction from above showed the bicondylar line, the bicipital groove and the humeral head on a single image. After measuring the humeral retroversion angle and the bicipital groove angle relative to the bicondylar line, we assessed the relationship between these two angles with Pearson's correlation coefficient. Pearson's correlation coefficient indicated a significant linear correlation between the angle of the groove and the angle of humeral retroversion based on the 70 cadaveric humeral bones (the p-value was 7.510-7, the correlation coefficient was -0.5515, and the 95% confidence interval was (-0.6962; -0.3636)). Our study thus demonstrates that the less lateralized the bicipital groove is, the greater the humeral retroversion will be. We demonstra...Continue Reading

References

Oct 20, 2001·Journal of Shoulder and Elbow Surgery·A HempfingR Hertel
Jul 4, 2009·Journal of Shoulder and Elbow Surgery·Nader WafaeGabriela Cavallini Wafae
Apr 19, 2013·The Journal of Bone and Joint Surgery. American Volume·Jeff W JohnsonS Ashfaq Hasan

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Citations

Oct 10, 2018·International Orthopaedics·Andreas F MavrogenisMarius M Scarlat
Aug 3, 2019·International Orthopaedics·Ion-Andrei PopescuAmir Ghazanfari

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