Systems, methods, and apparatuses for fusion, stabilization, or fixation of bones
Systems, methods, and apparatuses for fusion, stabilization, or fixation of bones are provided.
1. An apparatus for use with a tensioning cable and transverse bolts for causing compression between bone elements, the apparatus comprising:
an elongated shaft having:
a proximal end, a distal end, and an external surface;
a longitudinal inner bore;
a compression slot oriented longitudinally along the shaft and reaching transversely from the external surface to the inner bore, wherein the compression slot is configured to allow longitudinal movement of the shaft relative to a transverse bolt extending through the compression slot into a bone element; and
a channel extending longitudinally along the inner bore, wherein the entirety of the channel is recessed transversely from the inner bore and is thereby configured to receive a section of a tensioning cable extending within the shaft radially outward of the inner bore.
2. An apparatus as defined in claim 1 , wherein the channel is located longitudinally between the compression slot and the proximal end.
3. An apparatus as defined in claim 1 , wherein the channel is one of a plurality of channels recessed transversely from the inner bore.
4. An apparatus as defined in claim 3 , wherein the channels include channels opposed across the inner bore.
5. An apparatus as defined in claim 1 , wherein the shaft further has a cable aperture reaching from the external surface to the inner bore at a location between the compression slot and the proximal end, and the cable aperture is configured to receive a tensioning cable therethrough.
6. An apparatus as defined in claim 5 , wherein the channel extends longitudinally from the cable aperture to the compression slot.
7. An apparatus as defined in claim 1 , wherein the shaft further has a fixation aperture reaching transversely from the external surface to the inner bore at a location between the compression slot and the proximal end, and wherein the fixation aperture is configured to maintain the shaft in a desired longitudinal position relative to a second transverse bolt extending through the fixation aperture into a second bone element.
8. An apparatus as defined in claim 1 , wherein the shaft further has a tensioning cable clearance slot oriented longitudinally along the shaft and reaching transversely from the external surface to the inner bore, wherein the clearance slot is configured to allow a loop of tensioning cable to bow outward from the inner bore through the clearance slot.
9. An apparatus for use with a tensioning cable and transverse bolts for causing compression between bone elements, the apparatus comprising:
an elongated shaft having:
a proximal end, a distal end, and an external surface;
a longitudinal inner bore;
a compression slot oriented longitudinally along the shaft and reaching transversely from the external surface to the inner bore, wherein the compression slot is configured to allow longitudinal movement of the shaft relative to a transverse bolt extending through the compression slot into a bone element; and
a channel extending longitudinally along the inner bore, wherein the channel is recessed transversely from the inner bore and is thereby configured to receive a section of a tensioning cable extending within the shaft radially outward of the inner bore;
wherein the shaft further has a cable aperture reaching from the external surface to the inner bore at a location between the compression slot and the proximal end, and the cable aperture is configured to receive a tensioning cable therethrough; and
the shaft further has a tensioning cable routing channel reaching along the external surface from the cable aperture toward the distal end.
10. An apparatus as defined in claim 9 , wherein the channel is located longitudinally between the compression slot and the proximal end.
11. An apparatus as defined in claim 9 , wherein the channel is one of a plurality of channels recessed transversely from the inner bore.
12. An apparatus as defined in claim 11 , wherein the channels include channels opposed across the inner bore.
13. An apparatus as defined in claim 9 , wherein the channel extends longitudinally from the cable aperture to the compression slot.
14. An apparatus as defined in claim 9 , wherein the shaft further has a fixation aperture reaching transversely from the external surface to the inner bore at a location between the compression slot and the proximal end, and wherein the fixation aperture is configured to maintain the shaft in a desired longitudinal position relative to a second transverse bolt extending through the fixation aperture into a second bone element.
15. An apparatus as defined in claim 9 , wherein the shaft further has a tensioning cable clearance slot oriented longitudinally along the shaft and reaching transversely from the external surface to the inner bore, wherein the clearance slot is configured to allow a loop of tensioning cable to bow outward from the inner bore through the clearance slot.
16. An apparatus for use with a tensioning cable and transverse bolts for causing compression between bone elements, the apparatus comprising:
an elongated shaft having:
a proximal end, a distal end, and an external surface;
a longitudinal inner bore;
a compression slot oriented longitudinally along the shaft and reaching transversely from the external surface to the inner bore, wherein the compression slot is configured to allow longitudinal movement of the shaft relative to a transverse bolt extending through the compression slot into a bone element; and
a tensioning cable clearance slot oriented longitudinally along the shaft and reaching transversely from the external surface to the inner bore, wherein the clearance slot is configured to allow a loop of tensioning cable to bow outward from the inner bore through the clearance slot;
wherein the shaft further has a cable aperture reaching from the external surface to the inner bore at a location between the clearance slot and the proximal end, and the cable aperture is configured to receive a tensioning cable therethrough; and
the shaft further has a tensioning cable routing channel reaching along the external surface from the cable aperture toward the distal end.
17. An apparatus as defined in claim 16 , wherein the clearance slot is one of a plurality of clearance slots, each of which reaches transversely from the external surface to the inner bore and is configured to allow a loop of tensioning cable to bow outward from the inner bore.
18. An apparatus as defined in claim 17 , wherein the clearance slots include clearance slots opposed across the inner bore.
19. An apparatus as defined in claim 16 , wherein the clearance slot is located longitudinally beside the compression slot.
20. An apparatus as defined in claim 16 , wherein the clearance slot is orthogonally offset from the compression slot.
21. An apparatus as defined in claim 16 , wherein the shaft further has a channel extending along the inner bore in alignment with the clearance slot, and the channel is recessed transversely from the inner bore to receive a section of a tensioning cable extending within the shaft radially outward of the inner bore.
22. An apparatus as defined in claim 21 , wherein the channel is located longitudinally between the compression slot and the proximal end.
23. An apparatus as defined in claim 21 , wherein the channel is one of a plurality of channels recessed transversely from the inner bore.
24. An apparatus as defined in claim 23 , wherein the channels include channels opposed across the inner bore.
25. An apparatus as defined in claim 16 , wherein the shaft further has a fixation aperture reaching transversely from the external surface to the inner bore, wherein the fixation aperture is located between the clearance slot and the proximal end, and is configured to maintain the shaft in a desired longitudinal position relative to a second transverse bolt extending through the aperture into a second bone element.
26. An apparatus for use with a tensioning cable and transverse bolts for causing compression between bone elements, the apparatus comprising:
an elongated shaft having:
a proximal end, a distal end, and an external surface;
a longitudinal inner bore;
a compression slot oriented longitudinally along the shaft and reaching transversely from the external surface to the inner bore, wherein the compression slot is configured to allow longitudinal movement of the shaft relative to a transverse bolt extending through the compression slot into a bone element;
a fixation aperture reaching transversely from the external surface to the inner bore, wherein the fixation aperture is located between the compression slot and the proximal end, and is configured to maintain the shaft in a desired longitudinal position relative to a second transverse bolt extending through the aperture into a second bone element;
a cable aperture reaching through the shaft from the external surface to the inner bore at a location between the compression slot and the proximal end, wherein the cable aperture is configured to receive a tensioning cable therethrough; and
a channel extending along the inner bore, wherein the channel is recessed transversely from the inner bore to receive a section of a tensioning cable extending within the shaft radially outward of the inner bore;
wherein the channel extends longitudinally from the cable aperture to the compression slot; and
the shaft further has a tensioning cable routing channel reaching along the external surface from the cable aperture toward the distal end.
27. An apparatus as defined in claim 26 , wherein the channel is located longitudinally between the compression slot and the proximal end.
28. An apparatus as defined in claim 26 , wherein the channel is one of a plurality of channels recessed transversely from the inner bore.
29. An apparatus as defined in claim 28 , wherein the channels include channels opposed across the inner bore.
30. An apparatus as defined in claim 26 , wherein the shaft further has a tensioning cable clearance slot oriented longitudinally along the shaft and reaching transversely from the external surface to the inner bore, wherein the clearance slot is configured to allow a loop of tensioning cable to bow outward from the inner bore through the clearance slot.