Importance

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Abstract

One embodiment of a hollow spinal spacer (10) includes a curved anterior wall (11) having opposite ends (12, 13), a posterior wall (15) having opposite ends (16, 17), two lateral walls (20, 21), each integrally connected between the opposite ends (12, 13, 16, 17) of the anterior (11) and posterior (15) walls to define a chamber (30). The walls (11, 15, 20, 21) include a superior face (35) and an inferior face (40). The superior face (35) defines a first opening (36) in communication with the chamber (30) and includes a first vertebral engaging surface (37). The inferior face (40) defines a second opening (41) in communication with the chamber (30) and includes a second vertebral engaging surface (42). In one embodiment, a lateral wing projects from an external surface of each of the lateral walls. In another embodiment, the anterior wall defines an anterior superior surface and an anterior inferior surface. The anterior superior surface has a concave shape defining a first radius which is configured to correspond to the anterior shape of an inferior vertebral endplate. The anterior inferior surface has a convex shape defining a second radius which is configured to correspond to the anterior shape of a superior vertebral endplate. In other embodiments, the lateral walls define a convex lateral superior surface and a convex lateral inferior surface. Each of the lateral surfaces define a radius configured to correspond to the shape of a vertebral endplate.

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First Claim