As is probably the case with all successful innovations, the unique
design of the thrust plate prosthesis (TPP) was not born of a
sudden fancy for a radically different hip joint replacement, but
emerged from elaborate biomechanical investigations on the
loosening of conventional, intramedullarly anchored hip prosthesis
shafts. In the 1970s, hip revisions due to loosening of the
prostheses became a burden to patients not only physically and... more...