Customized patient-specific orthopaedic instruments for component placement in a total hip arthroplasty

  • US 10,034,753 B2
  • Filed: 10/22/2015
  • Issued: 07/31/2018
  • Est. Priority Date: 10/22/2015
  • Status: Active Grant
First Claim
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1. A system for facilitating implantation of a hip prosthesis, the system comprising:

  • a customized patient-specific femoral surgical instrument including a collar sized to fit around a neck of the patient'"'"'s femur, and a first alignment guide coupled to the collar, the first alignment guide including a first elongated body extending outwardly from the collar,an acetabular cup component defining a cup axis extending away from the acetabular cup component, anda customized patient-specific acetabular surgical instrument including;

    a body having (i) an inner surface defining a cylindrical passageway configured to receive the acetabular cup component, and (ii) a bone-facing surface having a customized patient-specific negative contour configured to receive a corresponding positive counter of the patient'"'"'s coxal bone, anda second alignment guide coupled to the body, the second alignment guide including a second elongated body extending outwardly from the body and defining an alignment axis positioned to indicate a predetermined position of the acetabular cup component in the patient'"'"'s coxal bone,wherein when the customized patient-specific femoral surgical instrument is coupled to the patient'"'"'s femur and the customized patient-specific acetabular surgical instrument is coupled to the patient'"'"'s coxal bone, the first elongated body of the customized patient-specific femoral surgical instrument extends toward the customized patient-specific acetabular surgical instrument and the second elongated body of the customized patient-specific acetabular surgical instrument extends toward the customized patient-specific femoral surgical instrument such that the first alignment guide of the customized patient-specific femoral surgical instrument and the second alignment guide of the customized patient-specific acetabular surgical instrument cooperate to provide a visual indication of a planned position of the hip prosthesis.

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