HIP REPLACEMENT NAVIGATION SYSTEM AND METHOD
2 Assignments
0 Petitions
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 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
64 Claims
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1-36. -36. (canceled)
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37. A patient specific method, comprising:
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coupling a patient specific jig to a rim of an acetabulum; registering the orientation of a proxy for a plane of the rim using an inertial sensor coupled with the patient specific jig; removing the patient specific jig from the acetabulum; orienting an acetabular shell in the acetabulum using an impactor and the inertial sensor, wherein during orienting, inertial data from the inertial sensor is used to confirm a proper orientation of the acetabular shell. - View Dependent Claims (38, 39, 40, 42, 43, 44, 45, 46, 47)
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41. (canceled)
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48. (canceled)
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49. (canceled)
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50. (canceled)
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51. (canceled)
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52. (canceled)
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53. A method of performing a hip joint replacement procedure, comprising:
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placing a patient in a position with a leg of the hip joint in an extended position; mounting a laser projecting device to a pelvis adjacent to the hip joint; projecting a laser light onto the leg and/or a foot of the leg to illuminate a portion of the leg and/or the foot away from the hip joint; recording a position of an incidence of the laser light; registering a portion of the femur adjacent to the hip joint; replacing the hip joint with an artificial hip joint; projecting the laser light onto the leg and/or the foot to confirm orientation of the femur relative to the pelvis to confirm leg length and/or joint offset, registering the portion of the femur adjacent to the hip joint to confirm leg length and/or off-set. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 63)
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61. (canceled)
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62. (canceled)
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64. A method of performing a hip joint replacement procedure, comprising:
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mounting a laser projecting device to a pelvis adjacent to the hip joint; registering a portion of a femur adjacent to the hip joint; projecting a laser light from the laser projecting device onto a leg and/or a foot of the leg to confirm correspondence between a pre-operative orientation of the femur and the pelvis and a post-operative orientation of the femur and the pelvis; and registering the portion of the femur adjacent to the hip joint to confirm leg length and/or joint off-set.
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Specification