“…The underlying pathomechanism is a vascular disorder, which can be multifactorial in origin. The diagnosis of acute and late‐onset post‐traumatic forms can be distinguished from non‐traumatic forms related to alcohol abuse, Morbus Cushing, Morbus Gaucher, pancreatitis, hyperlipidaemia, hemoglobinopathies, diabetes, radiation therapy, and others [2, 7, 8, 13, 15, 28]. Clinically, the most relevant cause for AVN of the humeral head is corticoid therapy, administered for various reasons [15, 16, 18, 26].…”