Patient selectable joint arthroplasty devices and surgical tools
View Patent ↗Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.
1. A patient specific surgical tool for use in surgery on a joint of a patient, comprising:
a block having a patient specific surface and a surgical instrument guide; the patient specific surface being substantially a negative of a corresponding surface portion of the joint that includes an osteophyte; the surgical instrument guide being sized to accommodate a cutting or drilling tool and having a position and orientation relative to the patient specific surface to provide a predetermined cutting or drilling path for the cutting or drilling tool that is aligned through a portion of tissue of the joint, wherein the joint of the patient is an ankle joint of the patient.
2. The surgical tool of claim 1 , wherein the surgical tool is configured such that the patient specific surface substantially does not engage a second osteophyte when the patient specific surface is engaged and aligned with the corresponding surface portion.
3. The surgical tool of claim 2 , wherein the patient specific surgical tool is configured such that the patient specific surface extends over but does not engage the second osteophyte when the patient specific surface is engaged and aligned with the corresponding surface portion.
4. The surgical tool of claim 1 , wherein the patient specific surface substantially engages an entire osteophyte.
5. The surgical tool of claim 1 , wherein the patient specific surface substantially engages an entire portion of a surface of an osteophyte.
6. The surgical tool of claim 1 , wherein the patient specific surface engages multiple osteophytes.
7. The surgical tool of claim 1 , wherein the cutting or drilling tool is a drill.
8. The surgical tool of claim 1 , wherein the cutting or drilling tool is a saw.
9. The surgical tool of claim 1 , further comprising an attachment mechanism.
10. The surgical tool of claim 9 , further comprising a surgical device for use with the block and connectable to the block by the attachment mechanism.
11. The surgical tool of claim 1 , wherein the surgical tool is comprised of multiple components.
12. The surgical tool of claim 1 , wherein the block containing the patient specific surface and the surgical instrument guide is a single component.
13. The surgical tool of claim 1 , wherein the surface of the joint is a tibial surface of the ankle joint of the patient and the surgical instrument guide is configured to define a path through a tibial surface when the patient specific surface is engaged and aligned with the corresponding surface.
14. The surgical tool of claim 1 , wherein the surgical instrument guide defines a path having a predetermined orientation relative to the distal portion of a tibia of the ankle joint.
15. The surgical tool of claim 1 , further comprising a plurality of surgical instrument guide apertures.
16. The surgical tool of claim 1 , wherein the surgical tool is configured to resist movement when the patient specific surface is placed against a surface of the joint.
17. The surgical tool of claim 1 , wherein the surgical tool is configured to resist rotation in at least one axis when the patient specific surface is placed against a surface of the joint.
18. The surgical tool of claim 1 , wherein the surgical instrument guide defines a predetermined path oriented along a biomechanical axis of the ankle joint when the patient specific surface is placed against and aligned with the corresponding surface portion of the ankle joint.
19. The surgical tool of claim 1 , wherein the surgical instrument guide aperture defines a predetermined path oriented along an anatomical axis of the ankle joint when the patient specific surface is placed against and aligned with the corresponding surface portion of the ankle joint.
20. The surgical tool of claim 1 , wherein the surgical instrument guide aperture includes a stop to control the depth of the cutting or drilling tool.
21. A patient specific surgical tool for use in surgically repairing a joint of a patient, comprising:
a cutting or drilling block having a patient specific surface and a surgical instrument guide; the patient specific surface having a first portion that is substantially a negative of a corresponding portion of a surface associated with the joint and a second portion that is configured to substantially avoid contact with one or more osteophytes of the joint when the first portion is engaged and aligned with the corresponding portion of the surface of the joint; the surgical instrument guide being sized to accommodate a cutting or drilling tool and have a position and orientation relative to the patient specific surface to provide a predetermined cutting or drilling path for the cutting or drilling tool that is aligned through a portion of tissue of the joint when the first portion is engaged and aligned with the corresponding portion of the surface of the joint, wherein the joint of the patient is an ankle joint of the patient.
22. The surgical tool of claim 21 , wherein the patient specific surgical tool is configured such that the patient specific surface does not engage any osteophyte when the patient specific surface is engaged and aligned with the corresponding portion of the surface of the ankle joint.
23. The surgical tool of claim 21 , wherein the patient specific surgical tool is configured such that the patient specific surface substantially does not engage any osteophyte when the patient specific surface is engaged and aligned with the corresponding portion of the surface of the ankle joint.
24. The surgical tool of claim 21 , wherein the patient specific surgical tool is configured such that the patient specific surface extends over but does not engage an osteophyte when the patient specific surface is engaged and aligned with the corresponding portion of the surface of the ankle joint.
25. The surgical tool of claim 21 , wherein the patient specific surgical tool is configured such that the patient specific surface extends over but substantially does not engage an osteophyte when the patient specific surface is engaged and aligned with the corresponding portion of the surface of the ankle joint.
26. The surgical tool of claim 21 , wherein the patient specific surgical tool is configured such that the patient specific surface extends around an edge of an osteophyte but does not engage the osteophyte when the patient specific surface is engaged and aligned with the corresponding portion of the surface of the ankle joint.
27. The surgical tool of claim 21 , wherein the patient specific surgical tool is configured such that the patient specific surface extends around an edge of an osteophyte but substantially does not engage the osteophyte when the patient specific surface is engaged and aligned with the corresponding portion of the surface of the ankle joint.
28. A surgical tool for use in surgically repairing a joint of a patient, comprising:
a block having a patient specific surface and a surgical instrument guide sized to accommodate a surgical tool; the patient specific surface having at least a portion that is substantially a negative of a joint surface of the patient that includes an osteophyte; the surgical instrument guide having a position and orientation relative to the patient specific surface to provide a predetermined path for cutting or drilling when the patient specific surface is placed against the joint surface of the patient such that the surgical instrument guide has a predetermined alignment relative to an anatomical or biomechanical axis of the joint of the patient, wherein the joint of the patient is an ankle joint.
29. A surgical tool system for use in surgically repairing a joint of a patient, comprising:
a first tool including a first block having a first patient specific surface and a first surgical instrument guide sized to accommodate a surgical tool; the patient specific surface having at least a portion that is substantially a negative of a first surface of the joint of the patient that includes an osteophyte; the surgical instrument guide having a position and orientation relative to the patient specific surface to provide a predetermined path for cutting or drilling when the patient specific surface is placed against the joint surface of the patient such that the surgical instrument guide has a predetermined alignment relative to an anatomical or biomechanical axis of the joint of the patient;
a second tool including a second block having a second patient specific surface and a second surgical instrument guide aperture; the second patient specific surface having at least a portion that is substantially a negative of a second surface of the joint of the patient; the second surgical instrument guide having a position and orientation relative to the second patient specific surface to provide a second predetermined path for cutting or drilling when the second patient specific surface is placed against the joint surface of the patient such that the surgical instrument guide aperture has a predetermined alignment relative to an anatomical or biomechanical axis of the joint of the patient,
wherein the joint of the patient is an ankle joint.
30. The surgical tool system of claim 29 , wherein the patient specific surface engages multiple osteophytes.