Abstract: A series of humeral stems, each stem including an axial bore and longitudinal slots along the distal end to allow for distal compression. The compression force necessary to compress the distal diameter of each stem varies by stem diameter. Thus, as the stem diameter increases through the series, the compression force decreases. The axial bore and longitudinal slots together form a series of stem segments that assume the shape of the medullary canal, reducing the force exerted upon the canal by the humeral stem.

Abstract: A distal radial plate including a longitudinal segment having a proximal end and a distal end; a transverse segment having a lateral end and a medical end; the distal end of the longitudinal segment attached to the transverse segment intermediate the lateral and medial ends of the transverse segment to form a T-shape; the longitudinal segment having a plurality of spherically recessed holes and having a slot with a proximal end and a distal end; the distal end of the slot having a spherical recess; the proximal end of the slot having a beveled edge which converges distally with the spherical recess of the slot; the transverse segment having a plurality of spherically recessed holes. An extender seats in one of the holes in the transverse segment of the distal radial plate and provides an additional hole on the lateral side of the transverse segment of the plate. Buttress pins have specially formed collars to be secured to the distal radial plate via a “snap-lock.