[Comments on the biostatical analysis of the hip joint II (author's transl)].

For a complete biostatical analysis of the hip joint, it will be necessary, besides determining the load, to calculate the extent of strain. In Part I of this article, we described the fundamentals of an improved calculation method which allows its clinical application. In the present second part of the article, a more sophisticated method of calculating the maximal pressure is explained. This takes into account, in particular, the position of the centre of the head of the femur to level of access to the acetobulum, the anteversion of the acetabulum, and the width of the interarticular space. The biomechanical method of analysis is supplemented by the description of a method to calculate the distribution of pressure in the hip joint. In an appendix, the mathematical connections of this calculation are described in detail.