Table 4.

Walking Ability.

Number of Patients	43
1 month after surgery
use of a wheelchair or no walking (%)	0
use of a walker (%)	0
use of crutches (%)	1	(2.3)
use of a 1 stick (%)	10	(23.3)
independent Gait (%)	32	(74.4)
3 months after surgery
use of a wheelchair or no walking (%)	0
use of a walker (%)	0
use of crutches (%)	0
use of a 1 stick (%)	5	(11.6)
independent Gait (%)	38	(88.4)
6 months after surgery
use of a wheelchair or no walking (%)	0
use of a walker (%)	0
use of crutches (%)	0
use of a 1 stick (%)	4	(9.3)
independent Gait (%)	38	(88.4)
Deaths (%)	1	(2.3)
12 months after surgery
use of a wheelchair or no walking (%)	0
use of a walker (%)	0
use of crutches (%)	0
use of a 1 stick (%)	4	(9.3)
independent Gait (%)	37	(86.0)
Deaths (%)	2	(4.7)
Decreased walking ability by 1 or more steps	3	(7.0)