Patent ID: 8906102

Claim:
A trialing system comprising: at least one stem member having a shaft portion adapted to be received in a canal of a humeral bone of a patient; first and second trial cups and a prosthesis cup each adapted to be coupled at a distal end thereof to the at least one stem member, the first trial cup having a base surface and a centering member protruding outwardly therefrom, and the second trial cup and prosthesis cup each having a proximal end surface including a recess therein; a first trial insert including a proximal end portion and a shaft portion having a distal end; and a second trial insert including a proximal end portion and a shaft portion having a distal end, the shaft portion having a recess in the distal end thereof, wherein the shaft portion of the first trial insert is received at least partially within the recess of the second trial cup in order to couple the first trial insert and second trial cup, wherein the centering member of the first trial cup is received in the recess in the distal end of the second trial insert in order to couple the first trial cup and second trial insert, and wherein the shaft portion of the second trial insert is received at least partially within the recess of the second trial cup in order to couple the second trial insert and second trial cup.