| The intramedullary axis along which the humeral prosthesis is inserted is that of the proximal metaphysis since a change in curvature occurs at the humeral diaphysis. |
| In the event of an abnormal morphotype, the ESOP HA prosthesis is modular: each shaft can be combined with each of the 10 metaphysis sizes. |
| The choice between 10 right and left sizes helps chose the best implant for the size of the metaphysis. |
| Multiplication of cartilage cells within a germinal layer leads to thickening of the growth cartilage towards the metaphysis. |
| The entire upper and anterior portion of the flexor pronator origins is detached with a scalpel, from the medial border of the humeral metaphysis to the middle of the epicondyle. |
| Indeed, this cortical is always free of 4 or 3 fragment fracture and represents the exact junction between the internal articular area of the head and the metaphysis area. |
