guide in the nature of printed matter comprising a classification matrix or grid distinguishing among several static loads and several levels of clinical performance, an overview illustrating modular prosthetic components grouped according to static load characteristics, and selection matrices or symbols to characterize modular prosthetic components individually as to their suggested and acceptable applications based on static load and clinical performance; and instructions governing use of the matrices and the overview to select the modular prosthetic components for assembly into prosthetic devices according to different combinations of recommended static load and clinical performance