Proximal femur plate system

Patent metadata

Field	Value
Publication number	US-11510712-B2
Application number	US-201815918655-A
Country	US
Kind code	B2
Filing date	Mar 12, 2018
Priority date	Mar 13, 2017
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A bone plate for treating periprosthetic fractures includes a head portion sized and shaped so that, in an operative position, a proximal end thereof aligns with a vastus ridge of a greater trochanter of a femur. The plate also includes a shaft portion extending distally from the head portion. The shaft portion includes offset holes to receive bone fixation elements therethrough. Each of the offset holes includes a first hole positioned on a first side of a longitudinal axis of the plate and a second hole positioned on a second side of the longitudinal axis opposite the first side so that bone fixation elements inserted therethrough extend anterior and posterior of a prosthetic received within the femur. The first and second holes are staggered relative to one another along a length of the shaft portion and extending beyond longitudinal edges of the shaft portion.

First claim

What is claimed is:

1. A system for treating a periprosthetic fracture, comprising:
a periprosthetic bone plate including a head portion and a shaft portion extending longitudinally therefrom, the shaft portion including pairs of offset holes extending therethrough from a first surface of the periprosthetic bone plate which, in an operative position faces away from a bone, and a second surface which, in the operative position faces toward the bone, each of the pairs of offset holes including a first hole positioned on a first side of a longitudinal axis of the periprosthetic bone plate and a second hole positioned on a second side of the longitudinal axis opposite the first side so that bone fixation elements inserted therethrough extend anterior and posterior of a prosthetic received within the bone, the first and second holes offset relative to one another along a length of the shaft portion and extending beyond longitudinal edges of the shaft portion, the shaft portion further including a locking attachment opening positioned along the longitudinal axis and between a first pair of offset holes and an adjacent second pair of offset holes separated from the first pair of offset holes along the longitudinal axis; and
a locking attachment plate including a body portion and a pair of wings extending laterally from the connecting portion, the body portion having a proximal end and a distal end and is sized and shaped to be mounted over the shaft portion of the periprosthetic plate with the locking attachment opening such that both the proximal end and the distal end of the body portion are disposed between the first pair of offset holes and the adjacent second pair of offset holes wherein the wings extend beyond the longitudinal edges of the shaft portion in the operative position and a first one of the wings includes a first pair of laterally outermost holes on the first side of the longitudinal axis and a second one of the wings includes a second pair of laterally outermost holes on the second side of the longitudinal axis,
wherein the locking attachment plate includes a first locking attachment plate surface which, in an operative position faces away from the bone, a second locking attachment plate surface which, in the operative position faces toward the bone, and a thickness measured between the first locking attachment plate surface and the second locking attachment plate surface, the locking attachment plate including a connecting portion between the body portion and at least one of the wings, the connecting portion extending from the proximal end to the distal end of the body portion and the connecting portion having a connecting portion thickness less than each of a body portion thickness and a wing thickness,
wherein respective center points at the first locking attachment plate surface of the first and second pairs of laterally outermost holes of the first and second ones of the wings are all disposed longitudinally inward of both the proximal end and the distal end of the body portion of the locking attachment plate.

2. The system of claim 1 , wherein the first one of the wings includes two first holes and the second one of the wings includes two second holes.

3. The system of claim 1 , wherein the locking attachment opening extends through the periprosthetic bone plate from the first surface to the second surface thereof.

4. The system of claim 3 , wherein the locking attachment plate includes an opening extending through the body portion, the opening of the locking attachment plate aligning with the locking attachment opening in the operative position so that a fixation element inserted through the opening of the locking attachment plate and the locking attachment opening couples the locking attachment plate to the periprosthetic plate.

5. The system of claim 1 , further comprising a greater trochanter attachment plate configured to be coupled to the head portion of the periprosthetic plate, the greater trochanter attachment plate including a proximal portion which, when the greater trochanter attachment plate is attached to the head portion, extends proximally therefrom to extend over a greater trochanter of the bone, in the operative position, wherein, when coupled to the periprosthetic plate in the operative position, a first surface of the greater trochanter attachment plate faces away from the bone while a second surface thereof faces toward the bone.

6. The system of claim 5 , wherein the proximal portion of the greater trochanter attachment plate includes a pair of hooks at a proximal end thereof, each of the pair of hooks extending from the proximal end along a curve directed in a distal direction.

7. The system of claim 6 , wherein the proximal portion of the greater trochanter attachment plate includes a plurality of pairs of holes extending therethrough from the first surface of the greater trochanter attachment plate to the second surface of the greater trochanter attachment plate so that, when coupled to the periprosthetic plate in the operative position, a first hole of each of the pairs of holes extends through the proximal portion of the greater trochanter attachment plate on a first side of a longitudinal axis of the greater trochanter attachment plate and a second hole of each of the pair of holes extends through the proximal portion of the greater trochanter attachment plate on a second side of the longitudinal axis of the greater trochanter attachment plate.

8. The system of claim 6 , wherein the proximal portion of the greater trochanter attachment plate includes a pair of cable holes which, when the greater trochanter attachment plate is coupled to the periprosthetic plate in the operative position, extend through the greater trochanter attachment plate from a first longitudinal side surface to a second longitudinal side surface, the proximal portion of the greater trochanter attachment plate including an elongated opening extending therethrough from the first surface to the second surface thereof in communication with the pair of cable holes so that, when a cable is inserted through the pair of cable holes, a crimp received within the elongated opening is crimpable over portions of the cable passing across the elongated opening.

9. The system of claim 5 , wherein the proximal portion of the greater trochanter attachment plate includes a ring-shaped portion and a plurality of extension tabs extending radially therefrom, the ring-shaped portion and each of the plurality of extension tabs including bone fixation element receiving openings extending therethrough, the ring-shaped portion being sized and shaped to be mounted over the greater trochanter.

10. The system of claim 9 , wherein the extension portions are bendable with respect to the ring-shaped portion.

11. The system of claim 9 , wherein the ring-shaped portion includes a suture hole between adjacent bone fixation element receiving openings.

12. The system of claim 5 , wherein the periprosthetic plate and the greater trochanter attachment plate include corresponding alignment features for aligning the greater trochanter attachment plate relative to the periprosthetic plate.

13. The system of claim 12 , wherein the corresponding alignment features include a shoulder along a bone facing surface of the greater trochanter attachment plate which, when the greater trochanter attachment plate is aligned with the periprosthetic plate, abuts a proximal end of the head portion.

14. The system of claim 12 , wherein the corresponding alignment features include a pair of positioning protrusions protruding from the second surface of the greater trochanter attachment plate so that, w

Assignees

• Depuy Synthes Products Inc

Inventors

• Koay Kenny
• Galie Jessica
• Probst Troy
• Fatone Peter
• Fritz Bryan
• Brace Mike
• Smith Glenna
• Haidukewych George J
• Stoffel Karl
• Collinge Cory A
• Liporace Frank A
• Ziran Bruce H

Classifications

• A61B17/8004

  with means for distracting or compressing the bone or bones · CPC title

• A61B17/742 Primary

  having one or more longitudinal elements oriented along or parallel to the axis of the neck · CPC title

• A61B17/8061

  specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence) · CPC title

• A61B17/80

  Cortical plates {, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates} · CPC title

• A61B17/8057

  the interlocking form comprising a thread · CPC title