Table 3.

Change of antelisthesis over entire course (%)

Degree of antelisthesis	preop		postop		FU 1		FU 2
	n	(%)	n	(%)	n	(%)	n	(%)
Not done	22	17.1	20	15.5	7	15.2	2	15.4
0	55	42.6	58	45.0	19	41.3	6	46.2
1	51	39.5	48	37.2	20	43.5	5	38.5
2	1	0.8	3	2.3