Patent ID: 8252061
Filing Date: 2012-08-28
Classification: A61F

Abstract:
1. A femoral stem comprising: a stem member including a distal part of the stem member which is adapted to be inserted in a medullary cavity of a femur and fixed therein and a proximal part of the stem member which has a neck for fixing an artificial head and is positioned at a proximal end of the distal part, the distal part and the proximal part being integrated or separable; a plate fixing portion which is detachably attached at a proximal-most end of the proximal part of the stem member; and a greater trochanter plate for depressing a greater trochanter, a proximal-most end of one side edge of the greater trochanter plate being fixed at a certain angle relative to the plate fixing portion by a fixing member that is to be located outside of the femur or the proximal-most end of the one side edge of the greater trochanter plate being fixed to the plate fixing portion so as to permit adjustment of an angle of the greater trochanter plate relative to the plate fixing portion, wherein the greater trochanter plate is asymmetrically configured about a longitudinal axis extending through the proximal part of the stem member such that the greater trochanter plate is elongated at the one side edge so that the one side edge of the greater trochanter plate is longer than an opposite side edge of the greater trochanter plate to provide a clearance between the plate fixing portion and a proximal-most end of the opposite side edge of the greater trochanter plate to permit passing of a tendon of a gluteus medius musculus.