Mechanical medial proximal humeral angle

The mechanical medial proximal humeral angle is a landmark used to assess angular deformities of the humerus and provide guidance for corrections. It is determined from a cranio-caudal radiograph or a multiplanar reconstructed CT images of the humerus.

The mechanical medial proximal humeral angle is the angle between the mechanical humeral axis in the frontal space and the proximal humeral joint orientation line in the frontal plane.

The mean value reported for the mechanical medial proximal humeral angle was :

- 83.74 +/- 3.95° in Shih-Tzu (Jeong et al. 2020)