Patient Selectable Knee Joint Arthroplasty Devices
Disclosed herein are methods and devices for repairing articular surfaces in a knee joint. The articular surface repairs are customizable or highly selectable for each patient and geared toward providing optimal fit and function. Kits are also provided to enable customized repairs to be performed.
1 . A method of selecting an orthopedic implant for treating an articular surface of a patient's joint using image data of the joint, the method comprising:
deriving a shape of an articular surface of a joint from image data of the joint;
selecting an articular implant from a library of implants based on at least one dimension from the derived shape of the articular surface;
altering the selected articular implant to provide a patient specific implant.
2 . The method of claim 1 , wherein the step of altering the articular implant includes altering one or more of a dimension, feature, curvature, and surface of the articular implant.
3 . The method of claim 1 , wherein the step of selecting further includes the step of selecting at least one of a length, width, height, curvature, thickness, contour and shape of the articular implant from the derived shape.
4 . The method of claim 1 , further comprising designing an instrument for use in implanting the selected articular implant, wherein at least a portion of the instrument is based on the derived shape.
5 . The method of claim 1 , further comprising designing an instrument for use in implanting the selected articular implant, wherein at least a portion of the instrument is based on the determined dimensions of the joint.
6 . The method of claim 1 , further comprising determining an axis associated with the joint.
7 . The method of claim 6 , wherein the articular implant is selected based on the determined axis.
8 . The method of claim 6 , further comprising altering the selected implant based on the determined axis.
9 . The method of claim 1 , further comprising designing an instrument for use in implanting the selected articular implant, wherein at least a portion the instrument is based on the determined axis.
10 . The method of claim 1 , wherein the selected implant is an electronic model of an implant.
11 . The method of claim 1 , wherein the selected implant is selected from a database of systems.
12 . The method of claim 1 , wherein the selected implant is a physical implant.
13 . The method of claim 1 , further comprising:
deriving a shape of articular tissue associated with the articular surface, wherein selecting the articular implant is further based on the derived shape of the articular tissue.
14 . The method of claim 1 , wherein the articular implant is selected such that at least a portion of an outer surface of the implant corresponds to subchondral bone underlying cartilage.
15 . The method of claim 14 , wherein the cartilage is diseased.
16 . The method of claim 14 , wherein the cartilage includes damaged and undamaged cartilage.
17 . The method of claim 1 , wherein the articular implant is selected such that at least a portion an outer surface of the implant matches an articular cartilage surface of the joint.
18 . The method of claim 1 , wherein the image data is from the group of MRI, CT, ultrasound, laser, digital tomosynthesis, optical coherence tomography, optical imaging and combinations thereof.
19 . The method of claim 1 , wherein the articular implant includes an inner bone-facing surface having at least a portion that substantially matches the shape of an articular surface of the patient's joint.
20 . The method of claim 1 , further comprising producing the selected implant.
21 . The method of claim 1 , wherein the articular implant is adapted for implantation at an implantation site located in one of a femoral condyle, a tibial plateau, a femoral head, an acetabulum, a shoulder, elbow, wrist, hand, ankle and foot joint.
22 . A method of selecting an orthopedic implant for treating an articular surface of a joint of a patient using a computer system, the method comprising:
obtaining electronic image data of a joint of a patient;
deriving a shape of bone of the joint from the image data;
determining electronically from the derived shape one or more dimensions associated with an articular surface of the bone;
selecting an articular implant from a library of implants based on the one or more dimensions associated with the articular surface; and
altering the articular implant based on the one or more dimensions.
23 . The method of claim 22 , wherein the step of altering the articular implant includes altering one or more of a dimension, feature, curvature, and surface of the articular implant.
24 . The method of claim 22 , wherein the step of selecting further includes the step of selecting at least one of a length, width, height, thickness, contour and shape of the articular implant from the derived shape.
25 . The method of claim 22 , further comprising designing an instrument for use in implanting the selected articular implant, wherein at least a portion of the instrument is based on the derived shape.
26 . The method of claim 22 , further comprising designing an instrument for use in implanting the selected articular implant, wherein at least a portion of the instrument is based on the determined dimensions of the joint.
27 . The method of claim 22 , further comprising determining an axis associated with the joint.
28 . The method of claim 27 , wherein the articular implant is selected based on the determined axis.
29 . The method of claim 27 , further comprising altering the selected implant based on the determined axis.
30 . The method of claim 22 , further comprising designing an instrument for use in implanting the selected articular implant, wherein at least a portion the instrument is based on the determined axis.
31 . The method of claim 22 , wherein the selected implant is an electronic model of an implant.
32 . The method of claim 22 , wherein the selected implant is selected from a database of systems.
33 . The method of claim 22 , wherein the selected implant is a physical implant.
34 . The method of claim 22 , further comprising:
deriving a shape of articular tissue associated with the articular surface, wherein selecting the articular implant is further based on the derived shape of the articular tissue.
35 . The method of claim 22 , wherein the articular implant is selected such that at least a portion of an outer surface of the implant corresponds to subchondral bone underlying cartilage.
36 . The method of claim 35 , wherein the cartilage is diseased.
37 . The method of claim 35 , wherein the cartilage includes damaged and undamaged cartilage.
38 . The method of claim 22 , wherein the articular implant is selected such that at least a portion an outer surface of the implant matches an articular cartilage surface of the joint.
39 . The method of claim 22 , wherein the image data is from the group of MRI, CT, ultrasound, laser, digital tomosynthesis, optical coherence tomography, optical imaging and combinations thereof.
40 . The method of claim 22 , wherein the articular implant includes an inner bone-facing surface having at least a portion that substantially matches the shape of an articular surface of the patient's joint.
41 . The method of claim 22 , further comprising producing the selected implant.
42 . The method of claim 22 , wherein the articular implant is adapted for implantation at an implantation site located in one of a femoral condyle, a tibial plateau, a femoral head, an acetabulum, a shoulder, elbow, wrist, hand, ankle and foot joint.
43 . A method of selecting an articular implant for treating an articular surface of a joint using a computer system, the method comprising:
obtaining electronic image data of a joint of a patient;
deriving a shape of a surface of cartilage of the joint from the image data;
determining electronically from the derived shape one or more dimensions associated with an articular surface of the joint;
selecting an articular implant from a library of implants based on the one or more dimensions associated with the articular surface; and
altering the articular implant based on the one or more dimensions.
44 . The method of claim 43 , wherein the step of selecting further includes the step of selecting at least one of a length, width, height, curvature, thickness, contour and shape of the articular implant from the derived shape.
45 . The method of claim 43 , wherein the step of altering the articular implant includes altering one or more of a dimension, feature, and surface of the articular implant.
46 . A method of selecting an orthopedic implant for treating an articular surface of a joint of a patient using a computer system, the method comprising:
obtaining electronic image data of a joint of a patient;
deriving a shape of at least or portion of bone of the joint from the image data;
selecting an articular implant from a library of implants based on the derived shape; and
altering the articular implant based on the derived shape.
47 . A method of selecting an orthopedic implant for treating an articular surface of a joint of a patient using a computer system, the method comprising:
obtaining electronic image data of a joint of a patient;
deriving a shape of at least or portion of cartilage of the joint from the image data;
selecting an articular implant from a library of implants based on the one or more dimensions associated with the articular surface; and
altering the articular implant based on the derived shape.