Transpseudarthrosis Osteotomy with Interbody Fusion for Kyphotic Spinal Pseudarthrosis in Ankylosing Spondylitis by a Single Posterior Approach: A Retrospective Study and a Brief Relevant Literature Review
Table 2
Clinical data of AS patients before operation and after operation.
Patients number
Operation time (min)
Blood loss (ml)
Pain score (VAS) pre-op/post-op
Neurological status (Frankel grade) pre-op/post-op
Local kyphosis (degree) pre-op/post-op
Complications
1
260
1460
8/1
D/E
38/7
None
2
210
720
6/0
E/E
25/9
None
3
180
820
7/2
C/D
41/21
Dura tears
4
190
790
6/1
D/E
38/12
None
5
170
580
5/1
E/E
9/1
None
6
195
980
7/1
D/E
12/4
None
7
240
1100
7/1
E/E
53/15
Screws pullout
8
178
600
6/0
D/E
34/2
None
9
182
850
8/3
E/E
21/8
None
10
200
730
7/1
D/E
40/8
None
11
198
530
6/1
E/E
17/1
None
12
220
650
7/1
E/E
36/8
None
Mean ± SD
817.5 ± 261.5
6.67 ± 0.89/1.08 ± 0.79
30.33 ± 13.38/8.0 ± 5.92
<0.00
<0.00
VAS indicates visual analogue scale. with preoperative value using paired -test.
