Disclosed herein are orthopedic revision systems (500) including a base member (510) having a collar portion (560) and at least one stabilization portion (509) extending outwardly from the collar portion. The systems may further include a stem member (400') having an attachment portion and a shaft portion (440'), the stem member configured to be received at least partially through an opening (210) in the collar portion such that the attachment portion lies adjacent the collar portion and the shaft portion lies adjacent the at least one stabilizing portion. In a method of performing revision surgery with such orthopedic systems includes forming an opening in the collar of the base member for receipt of the stem member by removing an inner portion of the collar portion and inserting the stem member at least partially through the opening in the collar portion such that the attachment portion lies adjacent the collar portion and the shaft member lies adjacent the at least one stabilizing portion.
