Customized patient-specific acetabular orthopaedic surgical instrument and method of use and fabrication

  • US 9,492,182 B2
  • Filed: 03/25/2015
  • Issued: 11/15/2016
  • Est. Priority Date: 09/30/2008
  • Status: Active Grant
First Claim
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1. A method for performing an orthopaedic bone reaming procedure on a patient'"'"'s acetabulum to facilitate implantation of an acetabular cup prosthesis in a coxal bone of the patient, the method comprising:

  • positioning a customized patient-specific acetabular reaming guide on the patient'"'"'s coxal bone, the customized patient-specific acetabular reaming guide including (i) a body having a longitudinal passageway defined therethrough and (ii) a plurality of feet coupled to the body and configured to contact the coxal bone of the patient, each foot of the plurality of feet being positioned relative to the body based on a predetermined degree of version and inclination angles of the acetabular cup prosthesis when implanted in the patient'"'"'s coxal bone;

    drilling a pilot hole into the patient'"'"'s acetabulum using the longitudinal passageway of the body as a drill guide;

    inserting a bone guide pin into the pilot hole formed in the patient'"'"'s acetabulum;

    advancing a cannulated acetabular reamer over the guide pin such that the guide pin is received into a centrally-defined passageway formed in a cutting head of the cannulated acetabular reamer; and

    reaming the patient'"'"'s acetabulum with the cutting head of the cannulated acetabular reamer using the bone guide pin as a guide for the cannulated reamer.

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