Patient-specific acetabular guides and associated instruments
First Claim
1. A method for reaming and preparing an acetabulum of a patient for an acetabular implant, the method comprising:
- engaging an acetabular area of the patient with a complementary surface of a patient-specific acetabular guide, the acetabular guide designed during a preoperative plan from a reconstructed three-dimensional image of the patient'"'"'s anatomy;
drilling a pilot hole in the acetabulum through a bore of a guiding element of the acetabular guide along a patient-specific alignment axis determined by the guiding bore;
inserting first and second marker pins into an area outside the acetabulum of the patient through corresponding first and second marker elements of the acetabular guide;
removing the acetabular guide;
without removing the marker pins;
reaming the acetabulum;
sliding a secondary guide over the first and second marker pins; and
inserting an acetabular cup in the reamed acetabulum.
2 Assignments
0 Petitions
Accused Products
Abstract
A patient-specific acetabular guide can be used for preparing an acetabulum of a patient to receive an acetabular implant. The acetabular guide includes a patient-specific engagement surface designed to be complementary and mateable with a corresponding surface of the patient'"'"'s pelvic anatomy. The acetabular guide is designed during a pre-operative plan for the patient by a three-dimensional reconstruction of the anatomy of the patient using two-dimensional medical images. The patient-specific engagement surface has a first portion mateable with a portion of the acetabulum of the patient. The acetabular guide includes a guiding element that extends from the acetabular guide opposite to the first portion of engagement surface. The guiding element defines a bore designed to be oriented along an alignment axis for an acetabular implant when the acetabular guide is engaged to the acetabulum.
1216 Citations
20 Claims
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1. A method for reaming and preparing an acetabulum of a patient for an acetabular implant, the method comprising:
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engaging an acetabular area of the patient with a complementary surface of a patient-specific acetabular guide, the acetabular guide designed during a preoperative plan from a reconstructed three-dimensional image of the patient'"'"'s anatomy; drilling a pilot hole in the acetabulum through a bore of a guiding element of the acetabular guide along a patient-specific alignment axis determined by the guiding bore; inserting first and second marker pins into an area outside the acetabulum of the patient through corresponding first and second marker elements of the acetabular guide; removing the acetabular guide;
without removing the marker pins;reaming the acetabulum; sliding a secondary guide over the first and second marker pins; and inserting an acetabular cup in the reamed acetabulum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for reaming and preparing an acetabulum of a patient for an acetabular implant, the method comprising:
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engaging an acetabular area of the patient with a surface of an acetabular guide; drilling a pilot hole in the acetabulum through a bore of a guiding element of the acetabular guide along an alignment axis determined by the guiding bore; inserting first and second marker pins into an area outside the acetabulum of the patient through corresponding first and second marker elements of the acetabular guide; removing the acetabular guide;
without removing the marker pins;reaming the acetabulum; sliding a secondary guide over the first and second marker pins; and inserting an acetabular cup in the reamed acetabulum. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification