Table 3.

Combined fusion assessment scale, per level, using CT scan 2D reconstructions

Anterior column	Posterior column
Solid fusion
Fused (A-1)	Fused (P-1)
Fused (A-1)	Fragmented (P-2)
Fused (A-1)	Not fused (P-3)
Partial fusion
Probably fused (A-2)	Fused (P-1)
Probably fused (A-2)	Fragmented (P-2)
Probably fused (A-2)	Not fused (P-3)
Inadequate fusion
Probably not fused (A-4)	Fused (P-1)
Probably not fused (A-4)	Fragmented (P-2)
Probably not fused (A-4)	Not fused (P-3)
Not fused (A-5)	Fused (P-1)
Not fused (A-5)	Fragmented (P-2)
Not fused (A-5)	Not fused (P-3)
Indeterminate
Indeterminate (A-3)	Fused (P-1)
Indeterminate (A-3)	Fragmented (P-2)
Indeterminate (A-3)	Not fused (P-3)