Sleeve for modular revision hip stem

摘要

The present disclosure provides a femoral prosthesis for use during a revision procedure. The femoral prosthesis includes a body, a neck, a stem, and a sleeve. The sleeve facilitates reattachment of an osteotomized proximal femur, specifically the greater trochanter, following a revision femoral prosthesis surgery involving an extended trochanteric osteotomy. Additionally, the sleeve promotes ingrowth of the osteotomized proximal femur with the sleeve.

主权项

1. A femoral prosthesis having a proximal end and a distal end and configured for implantation in a patient's proximal femur, the femoral prosthesis comprising:
a proximal body located toward the proximal end of the femoral prosthesis and incorporating a femoral neck on which a femoral head that is separate from the proximal body can be received; a distal stem located toward the distal end of the femoral prosthesis; and a sleeve received on the proximal body, said sleeve including a distal region in which a distal wall of the sleeve extends around a full circumference of the sleeve, said sleeve also including a proximal region that provides a side opening through which said proximal body extends, wherein the proximal body includes a proximal portion from which said femoral neck extends, and wherein the proximal region of the sleeve includes a proximal wall section that is positioned proximally of a proximal-most end of said proximal portion of the proximal body, the sleeve further including an anterior flange and a posterior flange which each extend longitudinally along the proximal region of the sleeve and border the side opening of the proximal region of the sleeve along a length of the side opening, the anterior flange and the posterior flange extending within a common vertical plane.