Patent ID: 7641698

Claim:
A modular hip joint implant comprising: a femoral stem implantable in a femur, the femoral stem having a proximal surface defining a dovetail groove having a base surface with first and second female wings and at least one recessed slot formed on the base surface between the first and second wings; a neck component having a distal surface defining a semi-dovetail projection having a single male wing and a keel extending from the projection, the keel slidably received in the at least one recessed slot and the projection slidably interlocking with the dovetail groove such that a keyway is defined between the second female wing and the neck component; and a key wedgeable in the keyway to lock the femoral stem and the neck component against relative sliding, the key having a first end and a second end and a length extending between the first end and the second end, the key receivable within the keyway substantially along the length of the key.