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US 2026/0283802 A1Published application
Orthopaedic knee cone components for use in an orthopaedic surgical procedure and instruments and methods for installing the same
AssigneeDepuy Ireland Unlimited Company
InventorsAnthony J. Webb, Lindsay L. Gilson, Jeremiah M. Lewis, Matthew D. Schmit, Wesley J. Gardner
Life of this patent
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Abstract
An orthopaedic joint replacement system is shown and described. The system includes a number of prosthetic components configured to be implanted into a patient's knee. The system also includes a number of surgical instruments configured for use in preparing the bones of the patient's knee to receive the implants. A number of methods for using the surgical instruments to prepare the bones is also disclosed.
Claims9
An orthopaedic knee system, comprising:
- a knee cone augment configured to be implanted into a surgically-prepared cavity in an end of a bone of a patient's knee, the knee cone augment comprising (i) a round elongated body having a superior end and an inferior end, (ii) a bore configured to receive a stem of a revision knee prosthesis extending through the elongated body, the bore being defined by a conically-shaped inner sidewall extending through the elongated body between its superior end and its inferior end, and (iii) a number of impact lugs secured to the inner sidewall at a location between the superior end and the inferior end of the elongated body, wherein each of the number of impact lugs has a flat impact surface, and
- an impactor head configured to impact the knee cone augment during a surgical procedure to implant the knee cone augment, the impactor head comprising (i) a proximal surface configured to be secured to an impaction handle, and (ii) an impact surface opposite the proximal surface, the impact surface having a number of impact shoulders formed therein, wherein each of the number of impact shoulders has a flat impact surface that is sized and shaped to be positioned on the impact surface of one of the number of impact lugs of the knee cone augment when the impactor head is used to impact the knee cone augment.
A method of surgically preparing a knee of a patient, the method comprising:
- forming a surgically-prepared cavity in an end of a bone of the knee of the patient,
- positioning a knee cone augment in the cavity formed in the end of the bone, the knee cone augment having (i) a bore formed therein, and (ii) a number of impact lugs positioned in the bore,
- advancing a distal end of an impactor head into the bore of knee cone augment such that a number of impact shoulders of the impactor head are positioned in contact with the number of impact lugs of the knee cone augment, and
- impacting the impactor head such that impaction forces are transferred from the number of impact shoulders of the impactor head to the number of impact lugs of the knee cone augment.
1 more element
Dependencies are inferred from the claim text.