Periprosthetic plating system including plate with system for retaining tension on a cable
A system, devices and methods are provided for facilitating stabilization of periarticular fractures. The system includes a compression plate and one or more of a cerclage cable for encircling the bone and securing the compression plate to the bone, a crimp lug for securing the cable in tension relative to the bone and/or a plate, and a supplemental plate coupled to the compression plate and adapted to receive bicortical or unicortical bone screws to further secure the compression plate relative to the bone. In addition, the system includes a cable tensioner for temporarily retaining the cable in tension and then applying a tension to the cable until a desired compression is effected between a plate and bone and while a cable retaining structure is secured to the cable to retain the applied tension on the cable. Also provided is a jig for use with plates for minimally invasive fracture stabilization.
1. A cerclage cable system, comprising:
a cable for stabilizing a bone, the cable including a first end provided with a stop structure, and a second end; and
a lug including a head including two eyelets disposed therein that each extend through a wall thickness of the lug and a retaining feature extending from the head that is at least partially threaded and is resiliently engageable with a hole disposed in a bone plate, wherein each of the two eyelets is configured for receiving the second end of the cable therethrough and at least one of the two eyelets is configured to retain the stop structure of the first end of the cable at least partially therein, and wherein the retaining feature includes a pair of legs resiliently engageable with the hole of the bone plate.
2. The cerclage cable system according to claim 1 , wherein the lug is made as a unitary piece.
3. The cerclage cable system according to claim 1 , wherein the lug is made from a single material.
4. The cerclage cable system according to claim 1 , wherein at least the head of the lug includes titanium or cobalt chrome.
5. The cerclage cable system according to claim 1 , wherein the head of the retaining feature is collapsible on the cable to retain the cable therein.
6. The cerclage cable system according to claim 1 , wherein each of the pair of legs include a reduced thickness upper portion about which they resiliently articulate, bend, or deform.
7. The cerclage cable system according to claim 1 , wherein a lower end of each of the pair of legs includes an outwardly extending foot portion that is adapted to capture the plate at an underside of the hole of the bone plate.
8. The cerclage cable system according to claim 1 , wherein the retaining feature includes external threads for engaging with threads disposed in the hole of the bone plate.
9. The cerclage cable system according to claim 1 , wherein the retaining feature and the plate hole include corresponding cross-sectional dimensions adapted to create frictional interference to secure the retaining feature in the hole.
10. The cerclage cable system according to claim 9 , wherein the retaining feature includes a plastically deformable structure for engaging the hole in the plate.
11. The cerclage cable system according to claim 1 , wherein the cable includes a nonelastic metal.
12. The cerclage cable system according to claim 11 , wherein the non-elastic metal includes titanium.
13. The cerclage cable system according to claim 11 , wherein the non-elastic metal includes stainless steel.
14. The cerclage cable system according to claim 11 , wherein the non-elastic metal includes cobalt chrome.