Short term Outcome of Minimal Invasive TLIF in Lumbar Foraminal
Stenosis
- Comparision to Conventional Method -
Sung Kyun Oh. M.D., Soo Wook Chae.M.D.,Tae Kyun Kim.M.D.,Dae Moo Shim. M.D.
Department Of Orthopaedic Surgery, Wonkwang University, Iksan, Korea
We wanted to analyze the clinical results of minimal
invasive transforaminal lumbar interbody fusion(TLIF) in
patients with foraminal stenosis , and we also compared the
minimal TLIF with the conventional TLIF.
Materials & Methods
Materials
vas(radiating pain)
9
8
7
6
5
4
3
2
1
0
VAS(Radiating pain)
Purpose
VAS(Back pain)
back pain(vas)
TLIF
mini-TLIF
Pre
3Mo
6Mo
12Mo
9
8
7
6
5
4
3
2
1
0
TLIF
mini-TLIF
Pre
기간
3Mo
6Mo
12Mo
기간
No significant difference between the two groups in terms
of the clinical results at the last follow up.
( p-value,0.518,0.503,0.642 independent t-test)
Perioperative Data
March 2008 – June 2010, random selection
13 patients with lumbar foraminal stenosis underwent
minimal invasive TLIF
17 patients with lumbar foraminal stenosis underwent
conventional TLIF
Mean F/U periods 15.4 and 17.3 month, respectively
Mean Age ; minimal invasive group 70 (51-87)
TLIF
mini-TLIF
p-value ( T-test)
OP time(min)
222
185
0.046
Blood loss(cc) 520
350
0.048
Drainage(cc)
259.2
113.4
0.04
Transfusion
0.58
0.30
0.305
Ambulation start 2.11 day
2.15day
0.922
Hospital stay
24.94 day
18.46day
0.079
conventional group 64 (49-79)
Conclusion
Intraoperative blood loss
postoperative drainage, transfusion, operation time,
The minimal invasive TLIF can shorten the operation time
and blood loss and also reduce the postoperative drainage
Clinical outcomes (VAS,ODI) ; preop, 3mo, 6mo, 1y, final f/u compare to the conventional TLIF.
hospital stay were investigated
Surgical Procedure
Case
Midline approach
conventional tailer retractor
facet removal and disckectomy
unilateral modular cage insertion
bilateral or unilateral percutaneous screw fixation
69/M
Back pain with right radiating pain for 5 years
MRI
L3-4 minimal TLIF (postoperaive 1y 6mo)
Results
Clinical Outcomes
Preoperative and Postoperative F/U MR
O DI
35
30
ODI
25
20
TLIF
mini-TLIF
15
10
Pre op
5
0
pre
3m
6m
기간
12m
Pre op
Post op
Post op