Table 1.

Compressive loads on the graft (load cell) at the C4–C5 level under 2-Nm moments

Motion	Mean compressive load (N)
	Load cell	Load cell + plate
Initial value (no moment)	17	86
Extension	37	152
Flexion	102	43
Left bending	49	98
Right bending	70	92
Left rotation	53	71
Right rotation	47	63

Data are presented for a total of six cases tested with a load cell placed at the C4–C5 level to study the load passing through the anterior column.