Hip replacement navigation system and method
First Claim
1. A method of performing a hip joint replacement procedure, the hip joint comprises a pelvis and a femur that is movable relative to the pelvis, the method comprising:
- placing a patient in a position with the femur of the hip joint in an extended position;
mounting a laser projecting device to the pelvis adjacent to the hip joint;
projecting a laser light onto a target to illuminate a portion of the target away from the hip joint;
recording a position of an incidence of the laser light;
positioning an acetabular shell after recording the position;
projecting the laser light onto the target after positioning the acetabular shell; and
aligning the femur with the pelvis by aligning the recorded position with the incidence of laser light.
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Accused Products
Abstract
A hip joint navigation system is provided that includes a base having at least one channel disposed therethrough for receiving a pin for mounting the base to the pelvis. A mount feature is disposed on a top surface. A registration jig is configured to couple with the base and to engage anatomical landmarks. In some aspects, a patient specific jig system for hip replacement is provided including an engagement surface formed to closely mate to acetabular bone contours of a specific patient and a registration feature configured to be in a pre-determined orientation relative to an acetabulum of the patient when the jig is coupled with acetabular bone contours of the specific patient. In other aspects, methods of using the systems are provided.
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Citations
20 Claims
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1. A method of performing a hip joint replacement procedure, the hip joint comprises a pelvis and a femur that is movable relative to the pelvis, the method comprising:
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placing a patient in a position with the femur of the hip joint in an extended position; mounting a laser projecting device to the pelvis adjacent to the hip joint; projecting a laser light onto a target to illuminate a portion of the target away from the hip joint; recording a position of an incidence of the laser light; positioning an acetabular shell after recording the position; projecting the laser light onto the target after positioning the acetabular shell; and aligning the femur with the pelvis by aligning the recorded position with the incidence of laser light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of performing a hip joint replacement procedure, the hip joint comprises a pelvis and a femur that is movable relative to the pelvis, the method comprising:
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mounting a laser projecting device to the pelvis adjacent to the hip joint; projecting a laser light from the laser projecting device onto a target before hip replacement, recording an incidence of the laser light before hip replacement; replacing the hip joint; and projecting the laser light onto the target after hip replacement to compare the position of the femur relative to the pelvis after hip replacement to the position of the femur relative to the pelvis before hip replacement. - View Dependent Claims (17, 18, 19, 20)
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Specification