Ankle replacement system and method
A surgical alignment system includes a guide arm, a ratchet arm frame configured to be coupled slidably to the guide arm, a ratchet arm configured to be coupled to the ratchet arm frame, and a sagittal sizing guide body configured to be coupled to the ratchet arm. The sagittal sizing guide body includes a first radiopaque object disposed at a first position and a second radiopaque object disposed at a second position that is spaced apart from the first position.
1. A surgical alignment system, comprising:
a guide arm;
a ratchet arm frame configured to be coupled slidably to the guide arm;
a ratchet arm configured to be coupled to the ratchet arm frame; and
a sagittal sizing guide body configured to be coupled to the ratchet arm, wherein the sagittal sizing guide body includes a first radiopaque object disposed at a first position that includes a pin disposed in a first hole defined by the sagittal sizing guide body and a second radiopaque object that includes a profile that corresponds to a profile of a first prosthesis component and is disposed at a second position that is spaced apart from the first position,
wherein the first radiopaque object has a length that corresponds to a length of a second prosthesis component so that when the surgical alignment system is positioned for use on a patient, the first radiopaque object identifies a location at which a first resection of a first bone is to be performed, and wherein the second radiopaque object has a profile that corresponds to a profile of a first prosthesis component for installation on a second bone.
2. The surgical alignment system of claim 1 , wherein the pin has a length that corresponds to a length of a second prosthesis component.
3. A surgical alignment system, comprising:
a position adjustment device configured to be attached to a first bone, comprising:
a body; and
an adjustment device configured to adjust a position of the body in at least a proximal-distal direction and a medial-lateral direction relative to the first bone; and
a sagittal sizing guide, comprising:
a first component configured to be attached at a first side of the first bone to the position adjustment device;
a second component connected to the first component and configured to extend in front of a second side of the first bone; and
a radiopaque guide connected to the second component configured to be fluoroscopically aligned relative to at least the first bone using the adjustment device.
4. The surgical alignment system of claim 3 , wherein the radiopaque guide corresponds to a length of a prosthesis component so that when the surgical alignment system is positioned for use on a patient, the first radiopaque object identifies a location at which a first resection of the first bone is to be performed.
5. The surgical alignment system of claim 3 , wherein the body comprises a slot and the first component comprises an extension configured to be inserted into the slot.
6. The surgical alignment system of claim 3 , wherein the position adjustment device further comprises a locking screw configured lock the position of the body.
7. The surgical alignment system of claim 3 , wherein the radiopaque guide comprises a first radiopaque object and a second radiopaque object.
8. The surgical alignment system of claim 7 , wherein the first radiopaque object comprises a linearly-extending component configured to extend in front of the second side of the first bone.
9. The surgical alignment system of claim 8 , wherein the first bone is a tibia.
10. The surgical alignment system of claim 7 , wherein the second radiopaque object is configured to be fluoroscopically aligned with a second bone.
11. The surgical alignment system of claim 10 , wherein the second radiopaque object is beneath the first radiopaque object.
12. The surgical alignment system of claim 11 , wherein the first bone is a tibia and the second bone is a talus.