Trial extractor of an orthopaedic surgical system and method of using the same

An orthopaedic knee system, comprising:

• a plurality of knee cone trial components configured to be installed into a surgically-prepared cavity in an end of a bone of a patient's knee, wherein each of the plurality of knee cone components has a conically-shaped hollow body configured to receive a stem trial component therethrough, the hollow body of each of the plurality of knee cone trial components has a pair of extraction openings formed therein, each of the pair of extraction openings being positioned on opposite sides of the hollow body from the other and extending between an inner sidewall and an outer sidewall of the hollow body, and
• a trial extractor operable to extract each of the plurality of knee cone trial components from the surgically-prepared cavity in the end of the bone of the patient's knee, the trial extractor comprising (i) a connector body configured to be secured to an impaction handle, the connector body of the trial extractor includes a pair of mounting flanges spaced apart from one another with each of the pair of mounting flanges having an aperture defined therein, (ii) a pair of extractor arms pivotally coupled to the connector body, each of the pair of extractor arms having (a) an apertured defined in a proximal end thereof, and (b) a prong formed in a distal end thereof, the prong of each of the pair of extractor arms being sized and shaped to be received into one of the extraction openings formed in each of the plurality of knee cone trial components, (iii) a pivot pin positioned in the aperture of each of the pair of mounting flanges and the aperture of each of the pair of extractor arms so as to pivotally couple the pair of extractor arms to the connector body, and (iii) (iv) a spring asserting a spring bias on the pair of extractor arms so as to urge the prongs away from one another.