Customized patient-specific orthopaedic instruments for component placement in a total hip arthroplasty
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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Abstract
A system for use in conjunction with a hip prosthesis is shown. A customized patient-specific acetabular orthopedic surgical instrument and a customized patient-specific femoral orthopedic surgical instrument are disclosed. A method for fabricating and using the orthopedic surgical instruments is also disclosed. A method for using the customized patient-specific acetabular orthopedic surgical instrument is disclosed. A method for using the customized patient-specific femoral orthopedic surgical instrument is disclosed.
106 Citations
8 Claims
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1. A system for facilitating implantation of a hip prosthesis, the system comprising:
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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, and a 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, and a 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification