Jürgen Habermas’ theory of the public sphere has provoked a massive reaction in European historiography in the last thirty years. However, methodological debates driven by the new questions that it inspired in Germany, England, or France had no equivalent in Poland and more broadly in Eastern Europe. This essay suggests why this might have been the case and argues for the deeper engagement of Polish historians with the Habermasian theory. In the text, I reintro-duce the aims of the theory of the public sphere and look for the possible roots of its lacklustre reception among Polish historians in the idea about the Polish case’s supposed incompatibility with the course of modern history assumed by Habermas. I argue against this view, emphasising the flexibility and open‑endedness of the main Habermasian concepts, as well as underlining the necessity for a specifically Polish answer to Habermas’ theoretical enterprise. In the final part, I present the opportunities brought by adapting the theory to the Polish case, claiming that the original history of the Polish public sphere could be a prospective topic for both Polish historians and other historians of the public sphere.

The paper presents a method of analysis of bone remodelling in the vicinity of implants. The authors aimed at building a model and numerical procedures which may be used as a tool in the prosthesis design process. The model proposed by the authors is based on the theory of adaptive elasticity and the lazy zone concept. It takes into consideration not only changes of the internal structure of the tissue (described by apparent density) but also surface remodelling and changes caused by the effects revealing some features of “creep”. Finite element analysis of a lumbar spinal segment with an artificial intervertebral disc was performed by means of the Ansys system with custom APDL code. The algorithms were in two variants: the so-called site-independent and site-specific. Resultant density distribution and modified shape of the vertebra are compared for both of them. It is shown that this two approaches predict the bone remodelling in different ways. A comparison with available clinical outcomes is also presented and similarities to the numerical results are pointed out.