Revision methods for a vertebral device
View Patent ↗Embodiments of devices and methods for correcting a vertebral member and/or repositioning a vertebral device relative to the vertebral member. A vertebral device has been previously positioned relative to a vertebral member. Due to subsidence or other factors, the vertebral device has moved and is no longer in alignment. A positioning device is used for re-positioning the vertebral device. A delivery device is used for inserting a material to the vertebral member and/or vertebral device. The material is initially in a first state that is flowable to allow for insertion to the required location. The material changes to a second state that permanently fixes the position of the vertebral device relative to the vertebral member.
1. A method of re-positioning a vertebral device that is previously mounted to a vertebral member, the method comprising the steps of:
accessing the vertebral device and the vertebral member;
re-aligning the vertebral device to a correct position relative to the vertebral member;
maintaining the vertebral device in the correct position while delivering a material in a first state to the vertebral member; and
maintaining the vertebral device in the correct position while allowing the material to change to a second state that is able to maintain the vertebral device in the correct position.
2. The method of claim 1 , wherein delivering the material in the first state comprises delivering the material in a liquid or semi-solid form.
3. The method of claim 1 , wherein the material changes to a semi-solid or solid in the second state.
4. The method of claim 1 , wherein the step of accessing the vertebral device and the vertebral member comprises using an anterior approach.
5. The method of claim 1 , further comprising aligning the vertebral device relative to a complimentary second vertebral device on an adjacent vertebral member.
6. The method of claim 5 , further comprising preventing the second vertebral device from moving relative to the adjacent vertebral member during the steps of accessing the vertebral device and the vertebral member and re-aligning the vertebral device to the correct position relative to the vertebral member.
7. The method of claim 1 , further comprising maintaining the vertebral device in the correct position while allowing the material to change to a solid second state that is able to maintain the vertebral device in the correct position.
8. The method of claim 1 , wherein the step of delivering a material in the first state to the vertebral member comprises delivering the material in a liquid form.
9. A method of filling a gap in a vertebral member of a patient that has formed under a vertebral device, the method comprising the steps of:
accessing the vertebral device and the vertebral member
accessing the gap that has formed in the vertebral member;
maintaining the vertebral device within the patient;
inserting a material in a first state into the gap with a delivery device; and
using a positioning member to position the vertebral device in a correct position relative to the vertebral member and allowing the material to change into a second state;
wherein the positioning member positions the vertebral device in the correct position prior to inserting the material into the gap.
10. The method of claim 9 , further comprising forming an opening in the vertebral member to access the gap.
11. The method of claim 9 , further comprising aligning the vertebral device relative to a complimentary second vertebral device on an adjacent vertebral member.
12. The method of claim 11 , further comprising preventing the second vertebral device from moving relative to the adjacent vertebral member during the steps of accessing the vertebral device and the vertebral member and accessing the gap.
13. The method of claim 9 , further comprising using an anterior approach to access the vertebral device.
14. The method of claim 9 , further comprising allowing the material to change into a solid second state.
15. A method of adjusting a position of a vertebral device comprising the steps of:
accessing a first section of the vertebral device and a subsided first vertebral member and a second section of the vertebral device and a second vertebral member
accessing a gap in the subsided first vertebral member;
inserting a material in a first state into the gap;
positioning the first section of the vertebral device in a correct position relative to the first vertebral member while the material is in the first state;
maintaining the first section of the vertebral device in the correct position as the material changes from the first state to a second state; and
maintaining the second section of the vertebral device while the material is inserted into the gap and while positioning the first section of the vertebral device in the correct position.
16. The method of claim 15 , wherein the step of positioning the first section in the correct position comprises positioning a complimentary ball and socket arrangement.
17. The method of claim 15 , wherein the step of accessing the first section comprises using an anterior approach.
18. The method of claim 15 , further comprising forming a hole in the first vertebral member and accessing the gap.
19. The method of claim 18 , further comprising inserting the material through the hole and maintaining an insertion device distanced from the first section.