Method of treating an intertrochanteric fracture

  • US 5,312,406 A
  • Filed: 12/01/1992
  • Issued: 05/17/1994
  • Est. Priority Date: 12/30/1986
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of treating an intertrochanteric fracture of a patient'"'"'s femur that is located generally between the head of the femur and the intramedullary canal, comprising the steps of:

  • a) inserting an elongated intramedullary rod having a longitudinal axis into the patient'"'"'s femur, wherein the rod has a distal stem portion, a head having a first smooth opening extending therethrough in an angled direction relative to the longitudinal axis of said rod such that when said rod is in position within the intramedullary canal of the femur, the opening is positioned to intersect the longitudinal axis of the rod, and the axis of said opening is directed toward the head of the femur;

    b) positioning the rod so that the axis of the smooth opening extends across the fracture and into the head of the femur;

    c) inserting a first screw through said first opening in said head and including first and second end portions;

    d) said first screw having a threaded surface formed at the first end adapted in use to engage bone tissue of the head of the femur;

    e) compressing the fracture using the bone screw while maintaining continuous sliding contact between the bone screw and the rod at the smooth opening;

    f) wherein said threaded section is spaced from the first opening during use for maintaining continuous sliding contact between said head of said rod and the first screw, to permit sliding compression of the selected fracture; and

    g) wherein in step "f" the cross section of the smooth opening closely conforms to the cross section of the screw so that the smooth opening rigidly affixes the screw in a single angular position relative to the rod, along said axis.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×