Orthopaedic instrument system for surgically-preparing a patient's femur

An orthopedic surgical instrument system comprising:

• a mounting bracket configured to be coupled to a femoral cutting block, the mounting bracket having a distal surface and an opening defined in the distal surface,
• an adaptor body positioned in the opening defined in the mounting bracket, the adaptor body extending along a first longitudinal axis and including a head plate that is pivotally coupled to the mounting bracket,
• an elongated shaft pivotally coupled to the adaptor body, the elongated shaft extending along a second longitudinal axis spaced apart from the first longitudinal axis and including a connector at its proximal end,
• a sleeve positioned on the elongated shaft between the adaptor body and the connector, and
• an intramedullary orthopedic surgical instrument coupled to the connector of the elongated shaft and sized to be inserted into a medullary canal of a patient's femur, the intramedullary orthopedic surgical instrument including a stem stabilizer coupled to the sleeve positioned on the elongated shaft,
• wherein the sleeve is movable along the elongated shaft between (i) a first position in which the sleeve engages the intramedullary orthopedic surgical instrument to secure the intramedullary orthopedic surgical instrument to the elongated shaft, and (ii) a second position in which the sleeve is spaced apart from the intramedullary orthopedic surgical instrument.

An orthopaedic surgical instrument system comprising:

• an offset guide comprising:
• a mounting bracket configured to be coupled to a femoral cutting block, the mounting bracket having a distal surface and an opening defined in the distal surface,
• an adaptor body positioned in the opening defined in the mounting bracket, the adaptor body extending along a first longitudinal axis and including a head plate that is pivotally coupled to the mounting bracket, and
• an elongated shaft pivotally coupled to the adaptor body, the elongated shaft extending along a second longitudinal axis spaced apart from the first longitudinal axis and including a connector sized to receive an intramedullary orthopedic surgical instrument, and
• an offset indicator configured to be coupled to the head plate of the adaptor body, the offset indicator including a plurality of visual indicia to indicate an offset orientation of a prosthetic femoral component assembly,
• wherein when the elongated shaft is prevented from rotating about the second longitudinal axis, the a plug of the offset indicator is operable to pivot the head plate relative to the mounting bracket about the first longitudinal axis and pivot the head plate relative to the elongated shaft about the second longitudinal axis, and
• wherein:
• the offset indicator includes an alignment tab, and
• the head plate includes an alignment groove sized to receive the alignment tab to position the offset indicator in a predetermined orientation relative to the offset guide.