| 摘要 |
<p>A femoral prosthesis for hip arthroplasty provides means for extending into the trochanter for facilitating engagement of the prosthesis with the abductor muscles and attachment of the prosthesis with the trochanter. This restores the abductor loop forces and minimizes shear stresses between the femur and the prosthesis. The protrusion is at the femoral proximal end adjacent to the neck of the stem and includes ribs (205) and bridges (206) to be edged into the spongiosa bony structure of the greater trochanter. A hollowed shaft (204) of different cross-sections and open at the end improves flexural matching between the femur and the prosthesis.</p> |
