Glenoid implants and methods for placing glenoid implants during orthopedic shoulder procedures.

Abstract

The glenoid implant of the shoulder prosthesis includes a base plate (100) having a shaft (140) connected to the bottom surface (106) of the plate and extending from the bottom surface. The plate includes a peripheral ring (130) extending downward away from the bottom surface and circumferentially around the bottom surface. The outer surface (134) of the peripheral ring has threads (136) formed therein.

Claims

1. 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 has (i) a central opening extending inward from the top surface, and (ii) a peripheral ring extending downward away from the bottom surface and circumferentially around the bottom surface, (a) the peripheral ring having an inner surface and an outer surface on the opposite side, and (b) the outer surface of the peripheral ring having several threads formed therein, An articular implant comprising: a shaft connected to the bottom surface of the plate and extending downward in a direction away from the bottom surface, the shaft having several threads formed on its outer surface.

2. The articular implant according to claim 1, wherein the threads formed on the outer surface of the peripheral ring and the threads formed on the outer surface of the shaft have a common thread pitch.

3. The articular implant according to claim 1, wherein the peripheral ring includes a plurality of separate arc-shaped ring portions separated from each other by gaps.

4. The articular implant according to claim 1, wherein the inner surface and outer surface of the peripheral ring have a porous structure disposed thereon.

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

6. 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.

7. 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 peripheral ring extending downward away from the lower surface and circumferentially around the lower surface, the peripheral ring having an outer surface with several threads formed therein, An articular implant comprising: a shaft connected to the bottom surface of the plate and extending downward in a direction away from the bottom surface, wherein the shaft has several threads formed on its outer surface, and the threads formed on the outer surface of the shaft and the threads formed on the outer surface of the peripheral ring have a common thread pitch.

8. The articular implant according to claim 7, wherein the peripheral ring includes a plurality of separate arc-shaped ring portions separated from each other by gaps.

9. The articular implant according to claim 7, wherein the outer surface of the peripheral ring has a porous structure disposed thereon.

10. The articular implant according to claim 7, wherein the shaft is integral with the plate.

11. 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 7, 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.

12. 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 inward from the top surface, the central opening of the plate having several threads formed therein; and (ii) a peripheral ring extending downward away from the bottom surface and circumferentially around the bottom surface, the peripheral ring having an outer surface having several threads formed therein; A shaft connected to the bottom surface of the plate and extending downward in a direction away from the bottom surface, the shaft having several threads formed on its outer surface, 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.

13. The articular implant according to claim 12, wherein the threads formed on the outer surface of the shaft and the threads formed on the outer surface of the peripheral ring have a common thread pitch.

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

15. The articular implant according to claim 12, wherein the outer surface of the peripheral ring has a porous structure disposed thereon.

16. The articular implant according to claim 12, wherein the shaft is integral with the plate.

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