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Biomet Manufacturing Corporation

Koichi Kanekasu

Hisayoshi Inoue

Takashî Maehara

Described is a femur fracture fixation device for treating a fractured, proximal end portion of a femur. The femur fracture fixation device comprises: an intramedullary nail; an extramedullary plate, including a main body portion for attachment to a lateral surface of the femur, and a posterior support portion extending from the main body portion for attachment to a posterior surface of the greater trochanter region of the femur; and a bone fastener, configured for insertion through an opening of the main body portion of the extramedullary plate, through an opening of the intramedullary nail, and into the head portion of the femur.

Femoral fracture fixation device with posterior support portion

An apparatus for identifying, during total knee replacement surgery, a position of a center of a femoral head of a patient within a plane parallel to a frontal plane, comprises a marking plate placed to cover, in a direction perpendicular to the frontal plane, a site where the femoral head center of the patient's body is located; a pivotal arm having a pivotal shaft arranged to extend in a direction perpendicular to the frontal plane; and a marker attached to the pivotal arm, for depicting a circular arc on the marking plate according to rotation of the pivotal arm; the pivotal shaft being placed at a distal end of a femur of the patient, a distance from the pivotal shaft to the marker in a direction parallel to the frontal plane being equal to a preliminarily measured distance from the distal end of the femur to the femoral head center.

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Takaoka, Japan

Koichi Kanekasu