Initial difficulties arise already in diagnostic stage. We cannot say whether a hip will spontaneously develop into a normal one. Hence, we must treat all children showing signs of dysplasia, and we must be willing to accept being accused of polypragmasis. There is also a certain, albeit slight, risk of disturbing the development of the femoral head. The must be strictly avoided by exercising greater possible care with regard to surgical technique and follow-up control. It is precisely the apparent simplicity of the method which presents a major difficulty. The article goes into the details of the method. Prevention in early infancy is the only possibility of checking the disease in all its stages.