الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
SUMMARY & CONCLUSION
pen Transforaminal Lumbar Interbody Fusion (TLIF) is
widely performed to treat different spine pathologies safely
since three decades after being introduced by Harms. However, it
is associated with significant postoperative morbidity due to
extensive muscle retraction and dissection needed for surgical
exposure.
Mini-invasive TLIF is a promising technique due to lower
complication rates and approach-related morbidity with minimal
soft tissue trauma, decreased intra-operative blood loss and risk of
transfusion, decreased postoperative pain and analgesic usage,
shorter hospital stays, earlier ambulation with faster return to
work and thus reduced overall health care costs.
The aim of the current study was to evaluate functional
outcome of mini-invasive TLIF technique in comparison to
conventional open TLIF as regard the intra-operatively and
postoperative period till achieving solid fusion.
Sixty one patients were enrolled in the current study, were
divided into 2 groups; 31 patients were managed by mini-open
TLIF technique (group A), while the other 30 patients were
managed by conventional open TLIF technique (group B). The
follow-up period was 24 months for all patients.
Inclusion criteria were patients having spinal canal stenosis
with unilateral lower limb manifestations and patients with
O
Summary & Conclusion
128
degenerative causes of lumbar spine stenosis. Exclusion criteria
were patients who refuse to be part of our study, patients with
spinal canal stenosis with bilateral lower limbs manifestations,
non degenerative causes of lumbar stenosis and patients require
decompression for more than 2 levels.
35 females and 26 males were included in the study. Mean
age of “group 1” patients was 54.13 years while in “group 2”
was 56.50 years.
In group 1, 25 cases had single level pathology (80.65%),
and 6 cases had 2 diseased levels (19.35%), while in group 2, 25
cases (83.33%) had diseased single level, and double level
involved in 5 cases (16.67%).
There was significant postoperative pain relief, marked
improvement in the functional outcome at 1 month, 6 and 24
months in all cases in both groups, but the difference was
statistically insignificant.
Operative time and radiation exposure were significantly
higher in the mini-invasive group compared to the open group.
The complications encountered were very few; including
one case of superficial infection and another case of dural tear. No
major or neurovascular complications were encountered in the
current study.
Summary & Conclusion
129
In conclusion, The Mini-invasive TLIF technique provides
similar efficacy to the conventional open technique in long-term
clinical outcome and fusion rate, with the additional benefits of
less initial postoperative pain, early rehabilitation, shorter
hospitalization, and fewer complications.