The ornamental design for a spinalcage, as shown and described.
FIG. 1 is a front, top perspective view of a spinal cage comprising the new design;
FIG. 2 is a back, bottom perspective view of the design of FIG. 1;
FIG. 3 is a front elevational view of the design of FIG. 1;
FIG. 4 is a back elevational view of the design of FIG. 1;
FIG. 5 is a top view of the design of FIG. 1;
FIG. 6 is a bottom view of the design of FIG. 1;
FIG. 7 is a left side elevational of the design of FIG. 1; and,
FIG. 8 is a right side elevational view of the design of FIG. 1.
The broken lines are directed to the environment and are for illustrative purposes only; the broken lines form no part of the claimed spinal cage invention.