A prosthesis (10) for replacing a portion of the anatomy. The prosthesis can include a first body (12) extending between a first region and a second region. The first body can define a first alignment portion (21) near the first region and a first taper (28) near the second region. The prosthesis can also comprise a second body (14) extending between a third region and a fourth region. The second body can define a second alignment portion (38) near the third region and a second taper (42) near the fourth region. The first alignment portion (21) can interact with the second alignment portion (38) , and the first taper (28) and the second taper (42) can interact when the first alignment portion and second alignment portion interact.
