A New CT Method for Assessing 3D Movements in Lumbar Facet Joints and Vertebrae in Patients before and after TDR

Table 3

The visual analogue scale (VAS) for pain before and three years after surgery during provocation in extension and flexion. Patient number three was excluded because there were no scores at three-year examination.

Patient	VAS extension		VAS flexion
	Before	After	Before	After
1	5	2	3	2
2	6	5	4	3
3	Missing value	Missing value	Missing value	Missing value
4	6	3	4	2
5	6	3	3	3
6	7	3	6	3
7	8	8	5	3
8	5	2	2	2
9	7	4	2	2
10	6	3	4	1
Median	6	3	4	2
Minimum	5	2	2	1
Maximum	8	8	6	3
value		0.01		0.03

Significantly different before and after surgery.