CPC A61F 2/4684 (2013.01) [A61F 2/442 (2013.01); A61F 2002/3008 (2013.01); A61F 2002/30617 (2013.01)] | 11 Claims |
1. A trial spacer comprising:
a spacer body configured to be positioned between vertebrae of a subject; and
depth indicia disposed in the spacer body, each of the depth indicia comprising a numerical value and designed and constructed to indicate a distance from a distal end of the spacer body to a corresponding one of the depth indicia, wherein the depth indicia are radiographically visible when the spacer body is positioned between the vertebrae of the subject, wherein the depth indicia are enclosed within the spacer body and not visible without radiographic imaging, and wherein a portion of the spacer body is more radiolucent than the depth indicia so that the depth indicia are radiographically visible.
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