Patent ID: 8110005

Claim:
A method of coupling a modular radial head prosthesis to a resected radius, comprising: inserting a stem having a longitudinal axis component into the resected radius, said stem having a first coupling portion and first and second sides which are generally parallel and on opposed sides to the longitudinal axis; coupling a head component having a first mounting portion that extends in a first direction transverse to the longitudinal axis to the first coupling portion; coupling a first arm of an insertion tool having a first force transmitting surface to the head component; coupling a second arm of the insertion tool having a second force transmitting surface to the second side; slidably translating the first mounting portion with a second mounting portion on the stem by moving the first arm in the first direction transverse to the longitudinal axis; sliding the head component with respect to the stem component by moving the head component in the first direction until a locking mechanism formed by the stem component and the head component at an interface is engaged.