Orthopedic implant system with enhancement device

Abstract

The glenoid implant (100) includes a base plate, a pair of bone screws (150), and an augmentation member (160). The base plate includes a plurality of screw holes (210), the pair of bone screws are positioned in two of the screw holes, and the augmentation member is positioned in a third screw hole. The augmentation member includes an unthreaded support (168) configured to abut the bottom of the bone defect.

Claims

1. An articular implant for implantation into the articular fossa of a patient during orthopedic procedures, A base plate comprising a plate having an upper surface and a lower surface, wherein the plate has (i) a central opening extending from the upper surface into the plate, and (ii) a plurality of screw holes extending from the upper surface to the lower surface of the plate, wherein the plurality of screw holes are positioned circumferentially around the plate. A shaft connected to the center of the bottom surface of the plate and extending downward in a direction away from the center of the bottom surface, the shaft having several threads formed on its outer surface, A first bone screw extending downward in a direction away from the bottom surface of the plate, the first bone screw having (i) a head positioned in a first screw hole among the plurality of screw holes, and (ii) an elongated threaded shank extending away from the threaded head, A second bone screw extending downward in a direction away from the bottom surface of the plate, the second bone screw having (i) a head positioned in a second screw hole among the plurality of screw holes, and (ii) an elongated threaded shank extending away from the threaded head, An articular implant comprising: a reinforcing member extending downward in a direction away from the bottom surface of the plate, the reinforcing member having (i) a threaded head positioned in a third threaded hole among the plurality of threaded holes, and (ii) an elongated, unthreaded support extending in a direction away from the threaded head.

2. The articular implant according to claim 1, wherein the elongated, non-threaded support of the reinforcing member has a porous structure positioned thereon.

3. The articular implant according to claim 1, wherein the elongated non-threaded support of the reinforcing member is shorter in length than the elongated threaded shanks of the first bone screw and the second bone screw.

4. The plate of the base plate further includes a peripheral ring that extends downward in a direction away from the bottom surface of the plate and circumferentially around the bottom surface, The peripheral ring has an inner surface and an outer surface on the opposite side. The articular implant according to claim 1, wherein the outer surface of the peripheral ring has several threads formed therein.

5. The articular implant according to claim 4, wherein the peripheral ring includes a plurality of separate arc-shaped ring portions separated from each other by gaps.

6. The articular implant according to claim 1, wherein the shaft is integral with the plate.

7. Further comprising a set screw and a grenosphere, The central opening of the plate has several threads formed therein, The aforementioned Glenosphere has several threads formed therein, The articular implant according to claim 1, wherein the set screw has a first number of threads configured to engage with the threads of the central opening and a second number of threads configured to engage with the threads of the glenosphere.

8. An articular implant for implantation into the articular fossa of a patient during orthopedic procedures, A base plate comprising a plate having a top surface and a bottom surface, wherein the plate comprises: (i) a central opening extending from the top surface into the plate, the central opening having several threads formed therein; and (ii) a plurality of screw holes extending from the top surface to the bottom surface of the plate, the plurality of screw holes positioned circumferentially around the plate; A shaft connected to the center of the bottom surface of the plate and extending downward in a direction away from the center of the bottom surface, the shaft having several threads formed on its outer surface, A pair of bone screws extending downward in a direction away from the bottom surface of the plate, wherein each of the pair of bone screws has (i) a head positioned in one of the plurality of screw holes, and (ii) an elongated threaded shank extending away from the threaded head, A reinforcing member extending downward in a direction away from the bottom surface of the plate, comprising: (i) a threaded head positioned in one of the plurality of screw holes; and (ii) an elongated, unthreaded support extending in a direction away from the threaded head; A Grenosphere having several threads formed inside, An articular implant comprising: (i) a set screw having a first number of threads configured to engage with the threads of the central opening; and (ii) a second number of threads configured to engage with the threads of the glenosphere.

9. The articular implant according to claim 8, wherein the elongated, non-threaded support of the reinforcing member has a porous structure positioned thereon.

10. The articular implant according to claim 8, wherein the elongated non-threaded support of the reinforcing member is shorter in length than the elongated threaded shank of the pair of bone screws.

11. The plate of the base plate further includes a peripheral ring that extends downward in a direction away from the bottom surface of the plate and circumferentially around the bottom surface, The peripheral ring has an inner surface and an outer surface on the opposite side. The articular implant according to claim 8, wherein the outer surface of the peripheral ring has several threads formed therein.

12. The articular implant according to claim 11, wherein the peripheral ring includes a plurality of separate arc-shaped ring portions separated from each other by gaps.

13. The articular implant according to claim 8, wherein the shaft is integral with the plate.

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