Proximal humeral stabilization system
Devices, systems, and methods for bone stabilization, especially proximal humeral stabilization. The stabilization system may include a bone plate having an elongated portion extending along a longitudinal axis and an enlarged head portion extending from the elongated portion. The stabilization system may include an intramedullary nail having an upper portion and a lower portion extending from the upper portion, the upper portion and the lower portion including a plurality of holes. A plurality of fasteners may be configured to extend through one or more of the plurality of through holes in the bone plate and/or one or more of the plurality of holes in the intramedullary nail and into the bone. The plate and nail may each be used alone or in combination together to stabilize a fracture in a long bone, such as a humerus.
1. A stabilization system for stabilizing a bone, the system comprising:
a bone plate, the bone plate comprising an elongated portion extending along a longitudinal axis and an enlarged head portion extending from the elongated portion, the bone plate comprising a plurality of through holes, a plurality of suture holes, and an unthreaded attachment aperture having a non-resilient flange positioned around only a portion of a perimeter of the aperture;
a fastener having a threaded shaft; and
a drill guide attached to the enlarged head portion of the bone plate, the drill guide having an upper surface, a lower surface and a side surface connecting the upper surface and the lower surface, the drill guide having a plurality of openings that correspond to the plurality of through holes on the bone plate, the threaded shaft of the fastener mating with the flange of the unthreaded attachment aperture to secure the drill guide to the bone plate,
wherein the drill guide includes a plurality of projections that extend from the lower surface of the drill guide, the projections adapted to contact an upper face of the bone plate, and
wherein the drill guide includes a plurality of lateral openings on the drill guide that extend only from the side surface to the lower surface and align with the plurality of suture holes on the bone plate when the drill guide is attached to the enlarged head portion of the bone plate.
2. The stabilization system of claim 1 , wherein the fastener is in the form of a screw having an enlarged head portion with a recess for receiving a driving instrument.
3. The stabilization system of claim 2 , wherein the screw is a single lead screw.
4. The stabilization system of claim 1 , wherein the flange is recessed into the aperture from the upper surface and a lower surface of the bone plate.
5. The stabilization system of claim 1 , wherein the flange has top and bottom surfaces that are normal to an axis of the aperture.
6. The stabilization system of claim 1 , wherein the flange occupies 180 degrees of the aperture.
7. The stabilization system of claim 1 , wherein the lower surface of the drill guide is concave and adapted to correspond to a geometry of the bone plate.
8. The stabilization system of claim 1 , wherein the plurality of projections are the only portions of the drill guide to contact the upper surface of the bone plate.
9. A stabilization system for stabilizing a bone, the system comprising:
a bone plate, the bone plate comprising an elongated portion extending along a longitudinal axis and an enlarged head portion extending from the elongated portion, the bone plate comprising a plurality of through holes, a plurality of suture holes, and an unthreaded opening comprising a non-resilient flange positioned around only a portion of a perimeter of the unthreaded opening;
a fastener having a threaded shaft; and
a drill guide attached to the enlarged head portion of the bone plate, the drill guide having an upper surface, a lower surface and a side surface connecting the upper surface and the lower surface, the drill guide having a plurality of bone fastener openings extending from the upper surface to the lower surface of the drill guide that correspond to the plurality of through holes on the bone plate, the drill guide being secured to the bone plate with the threaded shaft of the fastener extending through the unthreaded opening and mating with the flange of the plate, and the drill guide having a plurality of lateral openings on the drill guide that extend only from the side surface to the lower surface and align with the plurality of suture holes on the bone plate when the drill guide is attached to the enlarged head portion of the bone plate.
10. The stabilization system of claim 9 , wherein the fastener is in the form of a screw having an enlarged head portion with a recess for receiving a driving instrument.
11. The stabilization system of claim 10 , wherein the screw is a single lead screw.
12. The stabilization system of claim 9 , wherein the flange is recessed into the unthreaded opening from top and bottom surfaces of the bone plate.
13. The stabilization system of claim 9 , wherein the flange has top and bottom surfaces that are normal to an axis of the unthreaded opening.
14. The stabilization system of claim 9 , wherein the flange occupies 180 degrees of the unthreaded opening.
15. The stabilization system of claim 9 , wherein the lower surface of the drill guide is concave and adapted to correspond to a geometry of the bone plate.
16. The stabilization system of claim 9 , wherein the drill guide includes a plurality of projections that extend from the lower surface of the drill guide.
17. The stabilization system of claim 16 , wherein the plurality of projections are the only portions of the drill guide to contact a top surface of the bone plate.