The present invention is directed towards a prosthetic anchor (36) including a central layer (1) through which embedded fibers (2), such as artificial tendons, pass in defined pathways (4), a `deep` surface membrane (7) which interfaces with a hard structure, whether that is a prosthesis, a bone, or other hard tissue, and a `superficial` surface membrane (8) which interfaces adjacent tissue and may be configured to adhere or not to adhere to that tissue. The central layer (1) is positioned intermediate the surface membranes (7, 8) which are mechanically and/or adherently attached thereto. Also, non-limiting examples of methods of fabrication and of affixing the anchor (36) to a relatively rigid structure, natural or prosthetic, in a human or animal body with improved stress distribution in the fixed tension member end are taught.